更新日志

对绑定的扩展的函数有以下更新。

Version	Function	Description
Since 5.0	cal_info	参数calendar作为可选项，缺省时默认值为"所有历法"。
Since 4.3.0	easter_date	year参数可选，缺省的默认值是当年。
	easter_days	引入参数 method。
	easter_days	参数year 可选，缺省默认值是当年。
Since 4.2.0	srand	seed 成为可选，省略时会默认使用随机值。
Prior to 5.1.3	imagecolorallocatealpha	Returns -1 if the allocation failed.
PHP 7.0.15, PHP 7.1.1	get_defined_functions	增加 exclude_disabled 参数。
PHP 5.3.2 (PECL OCI8 1.4)	oci_set_prefetch	Before this release, rows must be >= 1.
PHP 5.3 (PECL OCI8 1.3.4)	oci_set_prefetch	Before this release, prefetching was limited to the lesser of rows rows and 1024 * rows bytes. The byte size restriction has now been removed.
PECL 3.0.0	IntlDateFormatter::format	Support for providing IntlCalendar objects to the datetime parameter was added.
8.2.0	DateInterval::__construct	Only the y to f, invert, and days will be visible, including a new from_string boolean property.
	DateInterval::createFromDateString	Only the from_string and date_string properties will be visible when a DateInterval is created with this method.
	DatePeriod::__construct	The DatePeriod::INCLUDE_END_DATE constant has been added.
	DateTimeInterface::format	新增 X 和 x 格式化字符。
	DateTimeImmutable::createFromFormat	The X and x format specifiers have been added.
	utf8_decode	This function has been deprecated.
	utf8_encode	This function has been deprecated.
8.1.0	DateTime::setTime	The behaviour with double existing hours (during the fall-back DST transition) changed. Previously PHP would pick the second occurrence (after the DST transition), instead of the first occurrence (before DST transition).
	DateTimeImmutable::setTime	The behaviour with double existing hours (during the fall-back DST transition) changed. Previously PHP would pick the second occurrence (after the DST transition), instead of the first occurrence (before DST transition).
	DirectoryIterator::key	When the iterator is uninitialized, an Error is thrown now. Previously, the method returned false.
	DOMDocument::createComment	In case of an error, a DomException is thrown now. Previously, false was returned.
	DOMDocument::createDocumentFragment	In case of an error, a DomException is thrown now. Previously, false was returned.
	DOMDocument::createTextNode	In case of an error, a DomException is thrown now. Previously, false was returned.
	current	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	date_sunrise	此函数已弃用，请改用 date_sun_info。
	date_sunset	此函数已弃用，请改用 date_sun_info。
	end	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	html_entity_decode	flags changed from ENT_COMPAT to ENT_QUOTES \| ENT_SUBSTITUTE \| ENT_HTML401.
	imageopenpolygon	The parameter num_points has been deprecated.
	key	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	ldap_add	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_add_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_add_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_bind_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_bind_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_compare	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_connect	Returns an LDAP\Connection instance now; previously, a 资源(resource) was returned.
	ldap_count_entries	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_count_entries	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_count_references	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_count_references	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_delete	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_delete_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_delete_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_errno	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_error	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_exop	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_exop_passwd	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_exop_refresh	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_exop_whoami	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_first_attribute	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_first_attribute	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_first_entry	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_first_entry	Returns an LDAP\ResultEntry instance now; previously, a 资源(resource) was returned.
	ldap_first_entry	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_free_result	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_get_attributes	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_get_attributes	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_get_dn	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_get_dn	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_get_entries	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_get_entries	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_get_option	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_get_values	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_get_values	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_get_values_len	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_get_values_len	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_list	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_list	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_mod_add	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_del	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_replace	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_modify_batch	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_add_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_mod_add_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_del_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_del_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_mod_replace_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_mod_replace_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_next_attribute	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_next_attribute	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_next_entry	The entry parameter expects an LDAP\ResultEntry instance now; previously, a 资源(resource) was expected.
	ldap_next_entry	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_next_entry	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_parse_exop	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_parse_exop	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_parse_result	The result parameter expects an LDAP\Result instance now; previously, a 资源(resource) was expected.
	ldap_parse_result	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_read	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_read	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_rename	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_rename_ext	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_rename_ext	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_sasl_bind	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_search	Returns an LDAP\Result instance now; previously, a 资源(resource) was returned.
	ldap_search	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_set_option	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_set_rebind_proc	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	ldap_unbind	现在 ldap 参数接受 LDAP\Connection 实例，之前接受资源(resource)。
	mhash	This function has been deprecated. Use the hash_*() functions instead.
	mhash_count	This function has been deprecated. Use the hash_*() functions instead.
	mhash_get_block_size	This function has been deprecated. Use the hash_*() functions instead.
	mhash_get_hash_name	This function has been deprecated. Use the hash_*() functions instead.
	mhash_keygen_s2k	This function has been deprecated. Use the hash_*() functions instead.
	next	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	odbc_result_all	This function has been deprecated.
	openssl_cms_encrypt	The default cipher algorithm (cipher_algo) is now AES-128-CBC (OPENSSL_CIPHER_AES_128_CBC). Previously, PKCS7/CMS was used (OPENSSL_CIPHER_RC2_40).
	pg_consume_input	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_escape_identifier	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_escape_literal	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_execute	现在返回 PgSql\Result 实例，之前返回资源(resource)
	pg_execute	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_fetch_all_columns	现在 result 参数接受 PgSql\Result 实例，之前接受资源(resource)。
	pg_field_table	现在 result 参数接受 PgSql\Result 实例，之前接受资源(resource)。
	pg_field_type_oid	现在 result 参数接受 PgSql\Result 实例，之前接受资源(resource)。
	pg_lo_truncate	现在 lob 接受 PgSql\Lob 实例，之前接受资源(resource)。
	pg_parameter_status	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_prepare	现在返回 PgSql\Result 实例，之前返回资源(resource)
	pg_prepare	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_query_params	现在返回 PgSql\Result 实例，之前返回资源(resource)
	pg_query_params	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_result_error_field	现在 result 参数接受 PgSql\Result 实例，之前接受资源(resource)。
	pg_send_execute	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_send_prepare	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_send_query_params	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_set_error_verbosity	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_socket	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_transaction_status	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	pg_version	现在 connection 参数接受 PgSql\Connection 实例，之前接受资源(resource)。
	prev	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	pspell_add_to_personal	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_add_to_session	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_check	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_clear_session	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_config_create	Returns an PSpell\Config instance now; previously, a 资源(resource) was returned.
	pspell_config_data_dir	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_dict_dir	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_ignore	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_mode	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_personal	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_repl	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_runtogether	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_config_save_repl	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_new	Returns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
	pspell_new_config	The config parameter expects an PSpell\Config instance now; previously, a 资源(resource) was expected.
	pspell_new_config	Returns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
	pspell_new_personal	Returns an PSpell\Dictionary instance now; previously, a 资源(resource) was returned.
	pspell_save_wordlist	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_store_replacement	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	pspell_suggest	The dictionary parameter expects an PSpell\Dictionary instance now; previously, a 资源(resource) was expected.
	reset	弃用在 object 上调用此函数。在 object 优先使用 get_mangled_object_vars 或者使用 ArrayIterator。
	snmp3_get	The auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
	snmp3_getnext	The auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
	snmp3_real_walk	The auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
	snmp3_walk	The auth_protocol now accepts "SHA256" and "SHA512" when supported by libnetsnmp.
	stream_select	microseconds is now nullable.
	MultipleIterator::current	A RuntimeException is now thrown if MultipleIterator::current is called on an invalid iterator. Previously, false was returned.
	MultipleIterator::key	A RuntimeException is now thrown if MultipleIterator::key is called on an invalid iterator. Previously, false was returned.
	Phar::buildFromDirectory	Phar::buildFromDirectory no longer returns false.
	Phar::buildFromIterator	Phar::buildFromIterator no longer returns false.
	PharData::buildFromDirectory	PharData::buildFromDirectory no longer returns false.
	PharData::buildFromIterator	PharData::buildFromIterator no longer returns false.
	ReflectionClassConstant::getName	Throws an Error in case the name property has not been initialized. Previously, the method returned false on failure.
	ReflectionParameter::__clone	This method is no longer final.
	ReflectionProperty::__clone	This method is no longer final.
	ReflectionProperty::getValue	Private and protected properties can be accessed by ReflectionProperty::getValue right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible; otherwise a ReflectionException was thrown.
	ReflectionProperty::setValue	Private and protected properties can be accessed by ReflectionProperty::setValue right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible; otherwise a ReflectionException was thrown.
	ReflectionZendExtension::__clone	This method is no longer final.
	SplFileObject::fputcsv	The optional eol parameter has been added.
	SplObjectStorage::current	SplObjectStorage::current now throws an Error exception if the current position is invalid. Previously, false was returned instead.
8.0.3	DOMDocument::getElementsByTagNameNS	namespace is nullable now.
	DOMElement::getElementsByTagNameNS	namespace is nullable now.
	DOMImplementation::createDocument	namespace is now nullable.
	finfo::__construct	magic_database is nullable now.
	bind_textdomain_codeset	codeset is nullable now. Previously, it was not possible to retrieve the currently set encoding.
	bindtextdomain	directory is nullable now. Previously, it was not possible to retrieve the currently set directory.
	SoapClient::__setLocation	location is nullable now.
	SoapVar::__construct	typeName, typeNamespace, nodeName,and nodeNamespace are nullable now.
8.0.0, PECL OCI8 3.0.0	oci_lob_copy	length is now nullable.
	OCICollection::append	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::assign	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::assignElem	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::free	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::getElem	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::max	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::size	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCICollection::trim	The OCI-Collection class was renamed to OCICollection to align with PHP naming standards.
	OCILob::append	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::close	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::eof	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::erase	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::erase	offset and length are now nullable.
	OCILob::export	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::export	offset and length are now nullable.
	OCILob::flush	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::free	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::getBuffering	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::import	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::load	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::read	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::rewind	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::save	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::saveFile	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::seek	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::setBuffering	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::size	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::tell	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::truncate	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::write	length is now nullable.
	OCILob::write	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::writeTemporary	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
	OCILob::writeToFile	offset and length are now nullable.
	OCILob::writeToFile	The OCI-Lob class was renamed to OCILob to align with PHP naming standards.
8.0.0	DateInterval::__construct	W can be combined with D.
	DateTimeInterface::format	之前的版本，失败时返回 false。
	DateTimeInterface::format	新增 p 格式化字符。
	DateTimeInterface::getOffset	Prior to this version, false was returned on failure.
	DateTimeInterface::getTimestamp	These functions no longer return false on failure.
	DateTimeZone::getOffset	在此之前的版本，失败时返回 false。
	DateTimeZone::listIdentifiers	在此版本之前，失败时返回 false。
	Directory::close	不接受任何参数。在此之前，目录句柄可以作为参数传递。
	Directory::read	不接受任何参数。在此之前，目录句柄可以作为参数传递。
	Directory::rewind	不接受任何参数。在此之前，目录句柄可以作为参数传递。
	DirectoryIterator::__construct	Now throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
	DOMImplementation::createDocument	doctype is now nullable.
	FFI::cdef	lib is nullable now.
	FFI::string	size is nullable now; previously, its default was 0.
	FilesystemIterator::__construct	Now throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
	apache_note	现在 note_value 可为 null。
	array_chunk	如果 length 小于 1，现在会抛出 ValueError；之前会引发 E_WARNING 级别的错误且函数会返回 null。
	array_column	index_key 参数指定的列中的对象不再强制转换为字符串，而是会抛出 TypeError。
	array_combine	如果每个数组的元素数量不相等，现在 array_combine 将会抛出 ValueError，之前此方法返回 false。
	array_diff	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_diff_assoc	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_diff_key	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_fill	如果 array_fill 的 count 超出范围现在将会抛出 ValueError，之前会引发 E_WARNING 且函数返回 false。
	array_filter	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	array_filter	callback 现在可为空（nullable）。
	array_intersect	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_intersect_assoc	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_intersect_key	现在可以仅使用一个参数调用此函数。以前，至少需要两个参数。
	array_map	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	array_reduce	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	array_splice	length 现在可为空（nullable）。
	array_walk	如果 callback 期待通过引用传递第二个和第三个参数，此函数现在将抛出 E_WARNING。
	bcadd	现在 scale 可以为 null。
	bccomp	现在 scale 可以为 null。
	bcdiv	现在 scale 可以为 null。
	bcmod	现在 scale 可以为 null。
	bcmul	现在 scale 可以为 null。
	bcpowmod	scale is now nullable.
	bcscale	现在 scale 可以为 null。
	bcsqrt	现在 scale 可以为 null。
	bcsub	现在 scale 可以为 null。
	bzdecompress	use_less_memory 的类型从 int 变为 bool。之前默认值为 0。
	bzwrite	length 现在可为空（nullable）。
	call_user_func_array	args 键现在将被解释为参数名称，而不是被默默地忽略。
	com_event_sink	sink_interface is nullable now.
	com_get_active_object	codepage is nullable now.
	constant	如果常量未定义，constant 现在会抛出 Error 异常。以前会产生一个 E_WARNING 级别的错误并返回 null。
	count	当 value 参数传入了无效的 countable 类型， count 现在会抛出 TypeError。
	crypt	salt不再可选。
	date	现在 timestamp 允许为 null。
	date_sunrise	latitude, longitude, zenith and utcOffset are nullable now.
	date_sunset	latitude, longitude, zenith and utcOffset are nullable now.
	deflate_add	context expects a DeflateContext instance now; previously, a resource was expected.
	deflate_init	On success, this function returns a DeflateContext instance now; previously, a resource was returned.
	dir	context 现在可为空（nullable）。
	dom_import_simplexml	This function no longer returns null on failure.
	enchant_broker_describe	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_describe	Prior to this version, the function returned false on failure.
	enchant_broker_dict_exists	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_free	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_free_dict	dictionary expects a EnchantDictionary now; previoulsy, a 资源(resource) was expected.
	enchant_broker_get_dict_path	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_get_error	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_init	On success, this function returns an EnchantBroker instance now; previoulsy, a 资源(resource) was retured.
	enchant_broker_list_dicts	Prior to this version, the function returned false on failure.
	enchant_broker_list_dicts	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_request_dict	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_request_dict	On success, this function returns an EnchantDictionary instance now; previoulsy, a 资源(resource) was retured.
	enchant_broker_request_pwl_dict	On success, this function returns an EnchantDictionary instance now; previoulsy, a 资源(resource) was retured.
	enchant_broker_request_pwl_dict	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_set_dict_path	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_broker_set_ordering	broker expects an EnchantBroker instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_add	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_add_to_session	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_check	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_describe	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_describe	Prior to this version, the function returned false on failure.
	enchant_dict_get_error	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_is_added	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_quick_check	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_store_replacement	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	enchant_dict_suggest	dictionary expects an EnchantDictionary instance now; previoulsy, a 资源(resource) was expected.
	error_log	现在 destination 和 additional_headers 允许为 null。
	error_reporting	error_level 现在可以为空。
	exif_read_data	required_sections 现在可以为空。
	get_class	在类外不带任何参数调用此函数将会触发 Error。之前会引发 E_WARNING 并且函数会返回 false。
	get_class_methods	object_or_class 参数现在只接受对象或者有效的类名。
	get_parent_class	object_or_class 参数现在仅接受对象或者有效的类名。
	get_resources	type is nullable now.
	getdate	现在 timestamp 允许为 null。
	gmdate	现在 timestamp 允许为 null。
	gmmktime	现在 minute、second、month、day 和 year 可以为 null。
	gmmktime	hour 不再可选。
	gmp_binomial	This function no longer returns false on failure.
	gmp_export	This function no longer returns false on failure.
	gmp_import	This function no longer returns false on failure.
	gmstrftime	现在 timestamp 允许为 null。
	grapheme_substr	The function now consistently clamps out-of-bounds offsets to the string boundary. Previously, false was returned instead of the empty string in some cases.
	gzgets	length is nullable now; previously, the default was 1024.
	gzwrite	length is nullable now; previously, the default was 0.
	html_entity_decode	encoding is nullable now.
	iconv_strpos	encoding is nullable now.
	iconv_strrpos	encoding is nullable now.
	imagebmp	The type of compressed is bool now; formerly it was int.
	imagebmp	image expects a GdImage instance now; previously, a resource was expected.
	imagecreatefrombmp	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagecreatefromtga	On success, this function returns a GDImage instance now; previously, a 资源(resource) was returned.
	imagecrop	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagecrop	image expects a GdImage instance now; previously, a resource was expected.
	imagecropauto	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagecropauto	image expects a GdImage instance now; previously, a resource was expected.
	imageflip	image expects a GdImage instance now; previously, a resource was expected.
	imagegetclip	image expects a GdImage instance now; previously, a resource was expected.
	imagegetinterpolation	image expects a GdImage instance now; previously, a resource was expected.
	imagegrabscreen	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagegrabwindow	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagegrabwindow	client_area expects a bool now; previously it expected an int.
	imageopenpolygon	image expects a GdImage instance now; previously, a resource was expected.
	imagepalettetotruecolor	image expects a GdImage instance now; previously, a resource was expected.
	imageresolution	resolution_x and resolution_y are now nullable.
	imagescale	image expects a GdImage instance now; previously, a resource was expected.
	imagescale	On success, this function returns a GDImage instance now; previously, a resource was returned.
	imagesetclip	image expects a GdImage instance now; previously, a resource was expected.
	imagesetinterpolation	image expects a GdImage instance now; previously, a resource was expected.
	implode	在 array 之后传递 separator 已不再支持。
	inflate_add	context expects an InflateContext instance now; previously, a resource was expected.
	inflate_get_read_len	context expects an InflateContext instance now; previously, a resource was expected.
	inflate_get_status	context expects an InflateContext instance now; previously, a resource was expected.
	inflate_init	On success, this function returns an InflateContext instance now; previously, a resource was returned.
	is_numeric	以空格结尾的数字字符串（"42 "）现在将返回 true。以前，会返回 false。
	ldap_add	controls is nullable now; previously, it defaulted to [].
	ldap_add_ext	controls is nullable now; previously, it defaulted to [].
	ldap_bind_ext	controls is nullable now; previously, it defaulted to [].
	ldap_compare	controls is nullable now; previously, it defaulted to [].
	ldap_control_paged_result	This function has been removed.
	ldap_control_paged_result_response	This function has been removed.
	ldap_delete	controls is nullable now; previously, it defaulted to [].
	ldap_delete_ext	controls is nullable now; previously, it defaulted to [].
	ldap_exop_passwd	controls is nullable now; previously, it defaulted to [].
	ldap_list	controls is nullable now; previously, it defaulted to [].
	ldap_mod_add	controls is nullable now; previously, it defaulted to [].
	ldap_mod_del	controls is nullable now; previously, it defaulted to [].
	ldap_mod_replace	controls is nullable now; previously, it defaulted to [].
	ldap_modify_batch	controls is nullable now; previously, it defaulted to [].
	ldap_mod_add_ext	controls is nullable now; previously, it defaulted to [].
	ldap_mod_del_ext	controls is nullable now; previously, it defaulted to [].
	ldap_mod_replace_ext	controls is nullable now; previously, it defaulted to [].
	ldap_read	controls is nullable now; previously, it defaulted to [].
	ldap_rename	controls is nullable now; previously, it defaulted to [].
	ldap_rename_ext	controls is nullable now; previously, it defaulted to [].
	ldap_sasl_bind	dn, password, mech, realm, authc_id, authz_id and props are nullable now.
	ldap_search	controls is nullable now; previously, it defaulted to [].
	ldap_set_rebind_proc	callback is nullable now.
	ldap_sort	This function has been removed.
	libxml_use_internal_errors	use_errors is nullable now. Previously, its default was false.
	localtime	现在 timestamp 可为 null。
	mb_chr	现在 encoding 可以为 null。
	mb_convert_encoding	现在，当 to_encoding 为无效编码时， mb_convert_encoding 会抛出 ValueError。
	mb_convert_encoding	现在，当 from_encoding 为无效编码时， mb_convert_encoding 会抛出 ValueError。
	mb_convert_encoding	现在 from_encoding 可以传入 null。
	mb_convert_kana	现在 encoding 可以为 null。
	mb_encode_mimeheader	charset 和 transfer_encoding 现在可以为空。
	mb_encode_numericentity	现在 encoding 可以为 null。
	mb_ereg	This function returns true on success now. Previously, it returned the byte length of the matched string if a match for pattern was found in string and matches was passed. If the optional parameter matches was not passed or the length of the matched string was 0, this function returned 1.
	mb_ereg_match	options is nullable now.
	mb_ereg_replace	options is nullable now.
	mb_ereg_replace_callback	options is nullable now.
	mb_ereg_search	pattern and options are nullable now.
	mb_ereg_search_init	pattern and options are nullable now.
	mb_ereg_search_pos	pattern and options are nullable now.
	mb_ereg_search_regs	pattern and options are nullable now.
	mb_eregi	This function returns true on success now. Previously, it returned the byte length of the matched string if a match for pattern was found in string and matches was passed. If the optional parameter matches was not passed or the length of the matched string was 0, this function returned 1.
	mb_eregi_replace	options is nullable now.
	mb_get_info	参数 type 中的 "func_overload" 和 "func_overload_list" 不再被支持。
	mb_ord	现在 encoding 可以为 null。
	mb_regex_encoding	现在 encoding 可以为 null。
	mb_regex_set_options	options is nullable now.
	mb_regex_set_options	If the parameter options is given and not null, the previous options are returned. Formerly, the current options have been returned.
	mb_scrub	现在 encoding 可以为 null。
	mb_str_split	此函数在失败时不再返回 false。
	mb_str_split	现在 encoding 可以为 null。
	metaphone	The function returned false on failure.
	mhash	key is now nullable.
	mktime	现在 minute、second、month、day 和 year 允许为 null。
	mktime	hour 不再可选。
	msg_get_queue	On success, this function returns a SysvMessageQueue instance now; previously, a resource was returned.
	msg_receive	queue expects a SysvMessageQueue instance now; previously, a resource was expected.
	msg_remove_queue	queue expects a SysvMessageQueue instance now; previously, a resource was expected.
	msg_send	queue expects a SysvMessageQueue instance now; previously, a resource was expected.
	msg_set_queue	queue expects a SysvMessageQueue instance now; previously, a resource was expected.
	msg_stat_queue	queue expects a SysvMessageQueue instance now; previously, a resource was expected.
	odbc_columns	schema, table and column are now nullable.
	odbc_error	odbc is nullable now.
	odbc_errormsg	odbc is nullable now.
	odbc_exec	flags was removed.
	odbc_fetch_row	row is nullable now.
	odbc_procedurecolumns	Prior to this version, the function could only be called with either one or five arguments.
	odbc_procedures	Prior to this version, the function could only be called with either one or four arguments.
	odbc_tables	schema, table and types are now nullable.
	opendir	现在 context 允许为 null。
	openssl_pkey_new	成功时此函数会返回 OpenSSLAsymmetricKey 的实例；在之前版本中，则会返回类似为 OpenSSL key 的资源(resource)。
	openssl_sign	private_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL key or OpenSSL X.509 was accepted.
	openssl_x509_verify	public_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL key or OpenSSL X.509 was accepted.
	openssl_x509_verify	certificate accepts an OpenSSLCertificate instance now; previously, a 资源(resource) of type OpenSSL X.509 was accepted.
	pack	此函数不再在失败时返回 false 。
	parse_str	result 是必须项。
	password_hash	失败时 password_hash 不再返回 false。
	password_hash	参数 algo 可以为 null。
	pg_version	connection is now nullable.
	readdir	现在 dir_handle 可以为 null。
	rewinddir	现在 dir_handle 允许为 null。
	sapi_windows_vt100_support	enable is now nullable.
	scandir	现在 context 允许为 null。
	sem_acquire	semaphore expects a SysvSemaphore instance now; previously, a resource was expected.
	sem_get	The type of auto_release has been changed from int to bool.
	sem_get	On success, this function returns a SysvSemaphore instance now; previously, a resource was returned.
	sem_release	semaphore expects a SysvSemaphore instance now; previously, a resource was expected.
	sem_remove	semaphore expects a SysvSemaphore instance now; previously, a resource was expected.
	set_error_handler	删除 errcontext 并不再传递给用户回调。
	shm_attach	size is nullable now.
	shm_attach	On success, this function returns an SysvSharedMemory instance now; previously, a resource was returned.
	shm_detach	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shm_get_var	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shm_has_var	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shm_put_var	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shm_remove	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shm_remove_var	shm expects a SysvSharedMemory instance now; previously, a resource was expected.
	shmop_close	shmop expects a Shmop instance now; previously, a resource was expected.
	shmop_delete	shmop expects a Shmop instance now; previously, a resource was expected.
	shmop_open	On success, this function returns an Shmop instance now; previously, a resource was returned.
	shmop_read	shmop expects a Shmop instance now; previously, a resource was expected.
	shmop_size	shmop expects a Shmop instance now; previously, a resource was expected.
	shmop_write	shmop expects a Shmop instance now; previously, a resource was expected.
	shmop_write	Prior to PHP 8.0.0, false was returned on failure.
	socket_accept	成功时，该函数现在返回一个 Socket 实例；在此之前，返回值是一个 resource。
	socket_addrinfo_bind	现在 address 是 AddressInfo 实例，之前是 resource。
	socket_addrinfo_bind	成功时，该函数现在返回一个 Socket 实例；在此之前，返回值是一个 resource。
	socket_addrinfo_connect	现在该函数成功时返回 Socket 实例；在此之前，返回值是 resource。
	socket_addrinfo_connect	现在 address 是 AddressInfo 实例，之前是 resource。
	socket_addrinfo_explain	现在 address 是 AddressInfo 实例，之前是 resource。
	socket_addrinfo_lookup	On success, this function returns a array of AddressInfo instances now; previously, an array of resources was returned.
	socket_addrinfo_lookup	service is nullable now.
	socket_bind	现在 socket 是 Socket 实例，之前是 resource。
	socket_clear_error	参数 socket 可以为 null。
	socket_clear_error	现在 socket 是 Socket 实例，之前是 resource。
	socket_close	现在 socket 是 Socket 实例，之前是 resource。
	socket_connect	现在 socket 是 Socket 实例，之前是 resource。
	socket_connect	port 允许为空。
	socket_create	创建成功时，该函数现在返回一个 Socket 实例；在此之前，返回的是一个 resource。
	socket_create_listen	On success, this function returns a Socket instance now; previously, a resource was returned.
	socket_create_pair	pair is a reference to an array of Socket instances now; previously, it was a reference to an array of resources.
	socket_export_stream	现在 socket 是 Socket 实例，之前是 resource。
	socket_get_option	现在 socket 是 Socket 实例，之前是 resource。
	socket_getpeername	现在 socket 是 Socket 实例，之前是 resource。
	socket_getsockname	现在 socket 是 Socket 实例，之前是 resource。
	socket_import_stream	On success, this function returns a Socket instance now; previously, a resource was returned.
	socket_last_error	socket 现在可为空（nullable）。
	socket_last_error	现在 socket 是 Socket 实例，之前是 resource。
	socket_listen	现在 socket 是 Socket 实例，之前是 resource。
	socket_read	现在 socket 是 Socket 实例，之前是 resource。
	socket_recv	现在 socket 是 Socket 实例，之前是 resource。
	socket_recvfrom	现在 socket 是 Socket 实例，之前是 resource。
	socket_recvmsg	现在 socket 是 Socket 实例，之前是 resource。
	socket_send	现在 socket 是 Socket 实例，之前是 resource。
	socket_sendmsg	现在 socket 是 Socket 实例，之前是 resource。
	socket_sendto	现在 socket 是 Socket 实例，之前是 resource。
	socket_sendto	port is nullable now.
	socket_set_block	现在 socket 是 Socket 实例，之前是 resource。
	socket_set_nonblock	现在 socket 是 Socket 实例，之前是 resource。
	socket_set_option	现在 socket 是 Socket 实例，之前是 resource。
	socket_shutdown	现在 socket 是 Socket 实例，之前是 resource。
	socket_write	length is nullable now.
	socket_write	现在 socket 是 Socket 实例，之前是 resource。
	socket_wsaprotocol_info_export	现在 socket 是 Socket 实例，之前是 resource。
	socket_wsaprotocol_info_import	On success, this function returns a Socket instance now; previously, a resource was returned.
	soundex	Prior to this version, calling the function with an empty string returned false for no particular reason.
	sprintf	此函数失败时不再返回 false 。
	str_word_count	characters 可为空（Nullable）类型。
	stream_context_create	现在 options 和 params 可以为 null。
	stream_context_get_default	options is now nullable.
	stream_copy_to_stream	length is now nullable.
	stream_get_contents	现在 length 可以为 null。
	stream_socket_accept	现在 timeout 可以为 null。
	stream_socket_client	timeout and context are now nullable.
	stream_socket_enable_crypto	session_stream is now nullable.
	stream_socket_server	context 现在可为 null。
	strtotime	现在 baseTimestamp 允许为 null。
	substr	函数将返回一个空字符串, 在此之前返回 false 。
	substr	现在 length 允许为 null。
	substr_count	length 可以为空（nullable）。
	touch	mtime 和 atime 现在可以为空。
	uasort	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	uksort	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	usort	如果 callback 接受引用传递参数，该方法将会抛出 E_WARNING。
	vsprintf	此函数失败时不再返回 false 。
	GlobIterator::__construct	Now throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
	IntlTimeZone::getIDForWindowsID	region is now nullable.
	LimitIterator::__construct	Now throws a ValueError if limit is less than -1; previously it threw a RuntimeException.
	LimitIterator::__construct	Now throws a ValueError if offset is less than 0; previously it threw a RuntimeException.
	Locale::getDisplayLanguage	displayLocale is nullable now.
	Locale::getDisplayName	displayLocale is nullable now.
	Locale::getDisplayRegion	displayLocale is nullable now.
	Locale::getDisplayScript	displayLocale is nullable now.
	Locale::getDisplayVariant	displayLocale is nullable now.
	NumberFormatter::create	pattern is nullable now.
	Phar::addFile	localName 现在可以为空。
	Phar::buildFromIterator	baseDirectory is now nullable.
	Phar::compress	extension is now nullable.
	Phar::convertToData	format, compression, and extension are now nullable.
	Phar::convertToExecutable	format, compression, and localName are now nullable.
	Phar::createDefaultStub	index and webIndex are now nullable.
	Phar::decompress	extension is now nullable.
	Phar::getMetadata	The parameter unserializeOptions has been added.
	Phar::setDefaultStub	webIndex is nullable now.
	Phar::setSignatureAlgorithm	privateKey is now nullable.
	Phar::webPhar	fileNotFoundScript, mimeTypes and rewrite are nullable now.
	PharData::addFile	localName is now nullable.
	PharData::buildFromIterator	baseDirectory is now nullable.
	PharData::compress	extension is now nullable.
	PharData::convertToData	format, compression, and extension are now nullable.
	PharData::convertToExecutable	format, compression, and localName are now nullable.
	PharData::decompress	extension is now nullable.
	PharData::setDefaultStub	webIndex is nullable now.
	PharData::setSignatureAlgorithm	privateKey is now nullable.
	PharFileInfo::getMetadata	The parameter unserializeOptions has been added.
	PharFileInfo::isCompressed	compression is now nullable.
	RecursiveDirectoryIterator::__construct	Now throws a ValueError if directory is an empty string; previously it threw a RuntimeException.
	RecursiveIteratorIterator::getSubIterator	level is now nullable.
	ReflectionClass::getConstants	添加 filter 。
	ReflectionClass::getReflectionConstants	filter has been added.
	ReflectionParameter::getDefaultValue	This method now allows getting the default value of parameters of built-in functions and built-in class methods. Previously, a ReflectionException was thrown.
	ReflectionParameter::getDefaultValueConstantName	This method now allows getting the default values' constant names of built-in functions and built-in class methods. Previously, a ReflectionException was thrown.
	ReflectionProperty::getValue	object is nullable now.
	ReflectionProperty::isInitialized	object is nullable now.
	SimpleXMLElement::asXML	filename is nullable now.
	SoapClient::__doRequest	The type of oneWay is bool now; formerly it was int.
	SoapClient::__setCookie	value is now nullable.
	SoapServer::handle	request is now nullable.
	SplFileInfo::getFileInfo	class is now nullable.
	SplFileInfo::getPathInfo	class is now nullable.
	SplFileInfo::openFile	context is now nullable.
	SplFixedArray::__construct	Now throws a ValueError if size is a negative; previously it threw a InvalidArgumentException.
	tidy::__construct	filename, config, encoding and useIncludePath are nullable now.
	tidy::parseFile	config and encoding are nullable now.
	tidy::parseString	config and encoding are nullable now.
	tidy::repairFile	tidy::repairFile is a static method now.
	tidy::repairFile	config and encoding are nullable now.
	tidy::repairString	config and encoding are nullable now.
	tidy::repairString	This function no longer accepts the useIncludePath parameter.
	tidy::repairString	tidy::repairString is a static method now.
	XMLReader::getAttribute	This function can no longer return false.
	XMLReader::getAttributeNs	This function can no longer return false.
	XMLReader::lookupNamespace	This function can no longer return false.
	XMLReader::next	name is nullable now.
	XMLReader::open	XMLReader::open is now declared as static method, but can still be called on an XMLReader instance.
	XMLReader::XML	XMLReader::XML is now declared as static method, but can still be called on an XMLReader instance.
	XMLWriter::endAttribute	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endCdata	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endComment	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endDocument	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endDtd	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endDtdAttlist	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endDtdElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endDtdEntity	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::endPi	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::flush	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::flush	This function can no longer return false.
	XMLWriter::fullEndElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::openMemory	This function returns now an XMLWriter instance on success. Previouly, a 资源(resource) has been returned in this case.
	XMLWriter::openUri	This function returns now an XMLWriter instance on success. Previouly, a 资源(resource) has been returned in this case.
	XMLWriter::outputMemory	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::setIndent	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::setIndentString	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startAttribute	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startAttributeNs	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startAttributeNs	prefix is nullable now.
	XMLWriter::startCdata	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startComment	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startDocument	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startDtd	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startDtdAttlist	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startDtdElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startDtdEntity	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startElementNs	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::startPi	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::text	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeAttribute	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeAttributeNs	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeCdata	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeComment	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeDtd	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeDtdAttlist	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeDtdElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeDtdEntity	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeDtdEntity	publicId, systemId and notationData are nullable now.
	XMLWriter::writeElement	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeElementNs	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writePi	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
	XMLWriter::writeRaw	现在 writer 需要 XMLWriter 实例，之前需要的是 resource。
7.4.4	proc_open	为 options 参数增加 create_new_console 选项。
7.4.0	array_merge	允许不带参数调用，之前版本至少需要一个参数。
	array_merge_recursive	允许不传递参数调用，之前的版本中至少需要一个参数。
	chr	此函数不再静默接受不支持的 codepoint，并会将它们转为 0。
	get_declared_classes	之前 get_declared_classes 返回的顺序总是父类在前，子类在后。现在不会这样了。get_declared_classes 的返回值将不再保证顺序。
	get_magic_quotes_gpc	该函数已被废弃。
	gzread	This functions returns false on failure now; previously 0 was returned.
	gzwrite	This functions returns false on failure now; previously 0 was returned.
	hash_algos	支持 crc32c。
	idn_to_ascii	现在 variant 的默认值为 INTL_IDNA_VARIANT_UTS46 ，而不是已弃用的 INTL_IDNA_VARIANT_2003 。
	idn_to_utf8	现在 variant 的默认值为 INTL_IDNA_VARIANT_UTS46 ，而不是已弃用的 INTL_IDNA_VARIANT_2003 。
	imagecropauto	The default value of mode has been changed to IMG_CROP_AUTO. Formerly, the default value has been -1 which corresponds to IMG_CROP_DEFAULT, but passing -1 is now deprecated.
	imagecropauto	The behavior of imagecropauto() in the bundled libgd has been synced with that of system libgd: IMG_CROP_DEFAULT no longer falls back to IMG_CROP_SIDES and threshold-cropping now uses the same algorithm as system libgd.
	implode	在 array 之后传递 separator （即：使用遗留写法）已被废弃。
	ldap_control_paged_result	This function has been deprecated.
	ldap_control_paged_result_response	This function has been deprecated.
	password_hash	现在 algo 参数可支持 string 类型，但为了向后兼容也支持 int 类型。
	password_hash	扩展 sodium 提供了 Argon2 密码的替代实现。
	password_needs_rehash	现在 algo 参数可以支持 string 类型，但为了向后兼容性，同时支持 int 类型。
	preg_replace_callback	新增 flags 参数。
	preg_replace_callback_array	The flags parameter was added.
	proc_open	为 options 参数增加 create_process_group 选项。
	proc_open	proc_open 的 command 参数现在也允许数组类型。
	Locale::lookup	defaultLocale is nullable now.
	SplFileObject::fgetcsv	The escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
	SplFileObject::fputcsv	The escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
	SplFileObject::fwrite	The function now returns false instead of zero on failure.
	SplFileObject::getCsvControl	The escape character can now be an empty string.
	SplFileObject::setCsvControl	The escape parameter now also accepts an empty string to disable the proprietary escape mechanism.
	SQLite3Stmt::bindParam	param now also supports the @param notation.
	SQLite3Stmt::bindValue	param now also supports the @param notation.
7.3.24, 7.4.12	tidyNode::isHtml	This function has been fixed to have reasonable behavior. Previously, almost any node was reported as being an HTML node.
7.3.14, 7.4.2	dba_open	The lmdb driver now supports an additional $mapsize parameter.
7.3.0	DateTimeImmutable::createFromFormat	The v format specifier has been added.
	apache_request_headers	此函数可用于 FPM SAPI 模式。
	array_push	可以只用一个参数来调用此函数，之前版本中至少需要两个参数。
	array_unshift	现在可以只用一个参数来调用，之前至少需要两个参数。
	bcmul	现在 bcmul 可以按想要的小数点位数返回数字。而之前，返回的数字会忽略尾随零（trailing decimal zeroes）。
	bcpow	现在 bcpow 可以按想要的小数点位数返回数字。而之前，返回的数字会忽略尾随零（trailing decimal zeroes）。
	bcscale	现在 bcscale 不仅可以设置，还可以获取当前的小数点保留位数。用于设置的时候，现在会返回之前的位数。之前 scale 是强制的参数，且 bcscale 总是返回 true。
	compact	现在，如果字符串指向的变量未定义，compact 会产生 E_NOTICE 级错误。在此之前，此类问题会静默忽略掉。
	define	废弃了 case_insensitive，并将在 8.0.0 版中移除。
	ftp_nb_fget	参数 mode 变为可选参数。在之前的版本中，这是一个必填参数。
	ftp_nb_fput	参数 mode 变为可选参数。在之前的版本中，这是一个必填参数。
	ftp_nb_get	mode 参数变为可选，之前是强制性的。
	ftp_nb_put	mode 参数为可选，之前版本中为必填。
	ftp_put	mode 参数为可选，之前版本中为必选。
	getallheaders	该函数可以在 FPM SAPI 中使用。
	is_countable	is_countable has been added.
	json_decode	flags 新增 JSON_THROW_ON_ERROR。
	json_encode	flags 参数新增 JSON_THROW_ON_ERROR 常量。
	ldap_add	Support for controls added
	ldap_compare	Support for controls added
	ldap_delete	Support for controls added
	ldap_exop	Support for serverctrls added
	ldap_exop_passwd	Support for controls added
	ldap_list	Support for controls added
	ldap_mod_add	Support for controls added
	ldap_mod_del	Support for controls added
	ldap_mod_replace	Support for controls added
	ldap_modify_batch	Support for controls added
	ldap_mod_add_ext	Support for controls added
	ldap_mod_del_ext	Support for controls added
	ldap_mod_replace_ext	Support for controls added
	ldap_parse_result	Support for controls added
	ldap_read	Support for controls added
	ldap_rename	Support for controls added
	ldap_rename_ext	Support for controls added
	ldap_search	Support for controls added
	list	支持在数组解构时传引用。
	password_hash	增加 PASSWORD_ARGON2ID，支持 Argon2id 密码算法。
	preg_quote	字符 # 被增加为需要转义的。
	session_set_cookie_params	增加 options 参数，可以通过传入一个关联数组对各个选项进行设置。同时，通过使用这个参数还可以对 SameSite cookie 进行设置。
	setcookie	An alternative signature supporting an options array has been added. This signature supports also setting of the SameSite cookie attribute.
	unlink	现在 Windows 也可以用 unlink 删除文件句柄还在使用中的文件了，在此之前是无法删除的。然而，还是无法重新创建文件，需要等到所有句柄都关闭才可以。
	var_export	现在将 stdClass 对象作为数组类型转换为对象输出（ (object) array( ... )），而不是使用不存在的 stdClass::__setState 方法。实际效果是，现在 stdClass 是可输出的，生成的代码甚至可以在早期的 PHP 版本上运行。
7.2.19, 7.3.6, 7.4.0	DatePeriod::__construct	recurrences must be greater than 0 now.
7.2.19, 7.3.6	SplFileObject::__toString	Changed from an alias of SplFileObject::current to an alias of SplFileObject::fgets.
7.2.18, 7.3.5	substr_compare	offset 现在可能等于 main_str。
7.2.12	DateInterval::format	The F and f format will now always be positive.
7.2.0	array_unique	如果 flags 是 SORT_STRING，之前会复制 array 并移除非唯一数组（之后并不打包数组），现在是通过添加唯一元素来生成新数组。这可能会导致不同的数字索引。
	bcmod	现在 num1 和 num2 不会截断成整数。所以现在 bcmod 的表现更接近 fmod 而不是 % 操作符。
	bcmod	新增参数 scale。
	count	当 value 参数传入了无效的 countable 类型， count 现在会产生警告。
	date_parse	返回数组的 zone 键现在代表秒，而不是分钟。并且正负符号已反转，例如：之前是 -120 现在是 7200。
	date_parse_from_format	The zone element of the returned array represents seconds instead of minutes now, and its sign is inverted. For instance -120 is now 7200.
	date_sun_info	The calculation was fixed with regards to local midnight instead of local noon, which changes the results slightly.
	exif_read_data	file 参数现在起支持本地文件和流式资源。
	exif_read_data	新增了以下 EXIF 格式的支持： Samsung DJI Panasonic Sony Pentax Minolta Sigma/Foveon AGFA Kyocera Ricoh Epson
	get_class	在此版本之前，object 的默认值是 null，它与不传递任何值有相同的效果。object 已经移除了默认值 null 且不再是有效的输入。
	gettype	现在，已关闭的资源报告为 'resource (closed)'。此前，已关闭的资源报告为 'unknown type'。
	hash_copy	接受的参数以及返回值从资源类型修改为 HashContext 对象类型。
	hash_final	接收参数从资源类型修改为 HashContext 对象类型。
	hash_hmac	不再支持非加密的哈希函数（adler32，crc32，crc32b，fnv132，fnv1a32，fnv164，fnv1a64，joaat）。
	hash_hmac_file	不再支持非加密的哈希函数（adler32，crc32，crc32b，fnv132，fnv1a32，fnv164，fnv1a64，joaat）。
	hash_init	返回 HashContext 对象，不再返回资源类型。
	hash_init	当使用 HASH_HMAC 选项的时候，不再支持非加密的哈希函数（adler32，crc32，crc32b，fnv132，fnv1a32，fnv164，fnv1a64，joaat）。
	hash_pbkdf2	不再支持非加密的哈希函数（adler32，crc32，crc32b，fnv132，fnv1a32，fnv164，fnv1a64，joaat）。
	hash_update	接收参数从资源类型修改为 HashContext 对象类型。
	hash_update_file	接收参数从资源类型修改为 HashContext 对象类型。
	hash_update_stream	接收参数从资源类型修改为 HashContext 对象类型。
	idn_to_ascii	INTL_IDNA_VARIANT_2003 已被弃用；可以使用 INTL_IDNA_VARIANT_UTS46 代替。
	idn_to_utf8	INTL_IDNA_VARIANT_2003 已被弃用；可以使用 INTL_IDNA_VARIANT_UTS46 代替。
	json_decode	现在 associative 允许为 null。
	json_decode	flags 新增 JSON_INVALID_UTF8_IGNORE、JSON_INVALID_UTF8_SUBSTITUTE。
	json_encode	flags 参数新增 JSON_INVALID_UTF8_IGNORE 和 JSON_INVALID_UTF8_SUBSTITUTE 常量。
	mail	现在 additional_headers 参数开始支持 array。
	mb_convert_encoding	现在该函数的 string 参数同时能接受 array 类型。在此之前，仅支持 string。
	number_format	number_format 现在无法返回 -0，之前可能返回 -0，因为 number 可能会是 -0.01。
	openssl_pkcs7_verify	新增 p7bfilename 参数。
	pack	float 和 double 类型支持大端和小端。
	parse_str	不带第二个参数的情况下使用 parse_str 会产生 E_DEPRECATED 警告。
	password_hash	增加 PASSWORD_ARGON2I，支持 Argon2i 密码算法。
	preg_match	现在 $flags 参数支持 PREG_UNMATCHED_AS_NULL。
	preg_match_all	现在 $flags 参数可以支持 PREG_UNMATCHED_AS_NULL。
	proc_nice	在 Windows 平台上可用。
	read_exif_data	这个函数别名被废弃。
	session_abort	The return type of this function is bool now. Formerly, it has been void.
	session_module_name	不允许设置模块名称为 "user"。在之前的版本中，如果设置为 "user"，那么会被静默的忽略到。
	session_name	session_name 函数会检查会话状态，之前的版本仅仅检查 cookie 状态。所以，旧版本的 PHP 允许你在调用 session_start 函数之后再调用 session_name 函数，新版本的 PHP 不再允许这样做了。
	session_reset	The return type of this function is bool now. Formerly, it has been void.
	session_set_cookie_params	成功时返回 true，或者在失败时返回 false。之前版本中是返回 void 的。
	session_write_close	The return type of this function is bool now. Formerly, it has been void.
	set_error_handler	errcontext 被废弃。使用此参数时会导致 E_DEPRECATED 提醒。
	unpack	float and double types supports both Big Endian and Little Endian.
	utf8_decode	This function has been moved from the XML extension to the core of PHP. In previous versions, it was only available if the XML extension was installed.
	utf8_encode	This function has been moved from the XML extension to the core of PHP. In previous versions, it was only available if the XML extension was installed.
	SQLite3::openBlob	The flags parameter has been added, allowing to write BLOBs; formerly only reading was supported.
7.1.5	IntlDateFormatter::format	Support for providing general DateTimeInterface objects to the datetime parameter was added. Formerly, only proper DateTime objects were supported.
7.1.4	PDO::sqliteCreateFunction	The flags parameter has been added.
	SQLite3::createFunction	The flags parameter has been added.
7.1.0	DateInterval::format	The F and f format characters were added.
	DateTime::setTime	新增 microsecond 参数。
	DateTimeImmutable::__construct	From now on microseconds are filled with actual value. Not with '00000'.
	DateTimeImmutable::setTime	The microsecond parameter was added.
	DateTimeZone::listIdentifiers	现在，countryCode 可以为 null。
	array_rand	内部随机化算法已从 libc rand 函数更改为使用梅森旋转算法（Mersenne Twister）随机数生成器。
	file_get_contents	支持负数 offset。
	getenv	现在可以省略 varname 来检索所有环境变量的关联数组 array。
	getopt	添加 rest_index 参数。
	grapheme_extract	Support for negative offsets has been added.
	grapheme_stripos	Support for negative offsets has been added.
	grapheme_strpos	Support for negative offsets has been added.
	hash_algos	加入 sha512/224，sha512/256，sha3-224，sha3-256，sha3-384 以及 sha3-512 算法的支持。
	iconv_strpos	Support for negative offsets has been added.
	json_decode	An empty JSON key ("") can be encoded to the empty object property instead of using a key with value _empty_.
	json_encode	flags 参数新增 JSON_UNESCAPED_LINE_TERMINATORS 常量。
	json_encode	对 Double 的值进行编码时，使用 serialize_precision 代替 precision。
	list	现在可以指定 list 中的键。这就可以解构非数字键或者无顺序的数组。
	long2ip	参数 proper_address 的类型从 string 改成 integer。
	mb_ereg	mb_ereg will now set matches to an empty array, if nothing matched. Formerly, matches was not modified in that case.
	mb_ereg_replace	The function checks whether string is valid for the current encoding.
	mb_ereg_replace	The e modifier has been deprecated.
	mb_ereg_replace_callback	The function checks whether string is valid for the current encoding.
	mb_ereg_search_setpos	Support for negative offsets has been added.
	mb_eregi	mb_eregi will now set matches to an empty array, if nothing matched. Formerly, matches was not modified in that case.
	mb_eregi_replace	The function checks whether string is valid for the current encoding.
	mb_eregi_replace	The e modifier has been deprecated.
	mb_strimwidth	支持负数的 start 和 width。
	mb_stripos	支持 offset 使用负数。
	mb_strpos	支持负数的 offset。
	openssl_decrypt	添加了 tag 和 aad 参数。
	openssl_encrypt	增加了 tag、aad、tag_length 参数
	openssl_pkey_new	添加了 curve_name 配置参数使得可以创建 EC 密钥。
	session_start	当 session_start 执行失败，无法开始一个会话的时候，会返回 false，并且不会初始化超级变量 $_SESSION。
	shuffle	内置的随机数产生算法从 libc rand 函数改成梅森旋转伪随机数生成算法。
	str_shuffle	内置的随机算法从 libc rand 函数改成了梅森旋转演伪随机数发生算法。
	stripos	开始支持负数的 offset。
	strpos	开始支持负数的 offset。
	substr_count	开始支持负数的 offset 和 length。
	unpack	The optional offset has been added.
	ReflectionType::__toString	ReflectionType::__toString has been deprecated.
	SessionHandler::gc	Prior to this version, the function returned true on success.
	SessionHandlerInterface::gc	Prior to this version, the function returned true on success.
7.0.15,7.1.1	pack	添加了 “e”,“E”,“g” 和 “G” 代码以启用 float 和 double 的字节顺序支持。
7.0.11	iconv_substr	如果 str 等长于 offset 个字符，将返回空字符串。之前的版本里，这种情况是会返回 false 的。
7.0.10	SplFileObject::getCsvControl	Added the escape character to the returned array.
	SQLite3::__construct	The filename can now be empty to use a private, temporary on-disk database.
7.0.7	curl_setopt	引入 CURL_HTTP_VERSION_2、 CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE、 CURL_HTTP_VERSION_2TLS、 CURL_REDIR_POST_301、 CURL_REDIR_POST_302、 CURL_REDIR_POST_303、 CURL_REDIR_POST_ALL、 CURL_VERSION_KERBEROS5、 CURL_VERSION_PSL、 CURL_VERSION_UNIX_SOCKETS、 CURLAUTH_NEGOTIATE、 CURLAUTH_NTLM_WB、 CURLFTP_CREATE_DIR、 CURLFTP_CREATE_DIR_NONE、 CURLFTP_CREATE_DIR_RETRY、 CURLHEADER_SEPARATE、 CURLHEADER_UNIFIED、 CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE、 CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE、 CURLMOPT_MAX_HOST_CONNECTIONS、 CURLMOPT_MAX_PIPELINE_LENGTH、 CURLMOPT_MAX_TOTAL_CONNECTIONS、 CURLOPT_CONNECT_TO、 CURLOPT_DEFAULT_PROTOCOL、 CURLOPT_DNS_INTERFACE、 CURLOPT_DNS_LOCAL_IP4、 CURLOPT_DNS_LOCAL_IP6、 CURLOPT_EXPECT_100_TIMEOUT_MS、 CURLOPT_HEADEROPT、 CURLOPT_LOGIN_OPTIONS、 CURLOPT_PATH_AS_IS、 CURLOPT_PINNEDPUBLICKEY、 CURLOPT_PIPEWAIT、 CURLOPT_PROXY_SERVICE_NAME、 CURLOPT_PROXYHEADER、 CURLOPT_SASL_IR、 CURLOPT_SERVICE_NAME、 CURLOPT_SSL_ENABLE_ALPN、 CURLOPT_SSL_ENABLE_NPN、 CURLOPT_SSL_FALSESTART、 CURLOPT_SSL_VERIFYSTATUS、 CURLOPT_STREAM_WEIGHT、 CURLOPT_TCP_FASTOPEN、 CURLOPT_TFTP_NO_OPTIONS、 CURLOPT_UNIX_SOCKET_PATH、 CURLOPT_XOAUTH2_BEARER、 CURLPROTO_SMB、 CURLPROTO_SMBS、 CURLPROXY_HTTP_1_0、 CURLSSH_AUTH_AGENT 和 CURLSSLOPT_NO_REVOKE。
7.0.0	assert	assert is now a language construct and not a function. assertion can now be an expression. The second parameter is now interpreted either as an exception (if a Throwable object is given), or as the description supported from PHP 5.4.8 onwards.
	define	允许 array 的值。
	dirname	添加可选的 levels 参数。
	getrusage	此函数现在开始支持 Windows。
	openssl_open	添加了 iv 参数
	openssl_seal	添加 iv 变量。
	session_start	新加 options 参数。
5.6.0	htmlentities	The default value for the encoding parameter was changed to be the value of the default_charset configuration option.
	htmlspecialchars	The default value for the encoding parameter was changed to be the value of the default_charset configuration option.
	ReflectionClass::newInstanceWithoutConstructor	All internal classes can now be instantiated except for those declared final.
5.5.38, 5.6.24, 7.0.9	getenv	添加 local_only 参数。
5.5.1	hex2bin	如果输入的字符串是无效的十六进制字符串则抛出一个警告，
5.5.0/PECL 3.0.0	IntlDateFormatter::create	An IntlCalendar object is allowed for calendar. Objects of type IntlTimeZone and DateTimeZone are allowed for timezone. Invalid timezone identifiers (including empty strings) are no longer allowed for timezone. If null is given for timezone, the timezone identifier given by date_default_timezone_get will be used instead of ICUʼs default.
	IntlDateFormatter::setCalendar	It became possible to pass an IntlCalendar object.
5.5.0	empty	empty 现在支持表达式了，而不仅仅是变量。
	ip2long	Prior to this version, on Windows ip2long would sometimes return a valid number even if passed a value which was not an (IPv4) Internet Protocol dotted address.
		此函数会生成一个 E_DEPRECATED 错误。
		mysql_list_dbs 函数已废弃，调用时会抛出 E_DEPRECATED 级别的错误。
		函数会抛出一个 E_DEPRECATED 错误。
		mysql_tablename 函数已废弃，调用时会抛出 E_DEPRECATED 级别的错误。
	setrawcookie	发送给客户端的 Set-Cookie 头现在会加上 Max-Age 属性。
5.4.32, 5.5.16	ucwords	增加了 delimiters 参数。
5.4.8	assert	增加了参数 description。 description 现在也作为第四个参数提供给 ASSERT_CALLBACK 模式里的回调函数。
	mb_strcut	Passing NULL as length extracts all bytes to the end of the string. Prior to this version NULL was treated the same as 0.
	mb_substr	length 传入 NULL，则从 start 提取到字符串的结尾处。在之前的版本里， NULL 会被当作 0 来处理。
5.4.7	parse_url	修复了 host 在协议省略时的识别。
5.4.4	hex2bin	如果输入的字符串有多余将抛出异常。 PHP 5.4.0 起字符串将被静默地接受，但是最后的字节会被截断。
5.4.0	dns_get_record	增加了参数raw。
	empty	检查非数字的字符串偏移量会返回 true.
	filter_input_array	添加 add_empty 参数.
	filter_var_array	添加 add_empty 参数。
	get_html_translation_table	The default value for the encoding parameter was changed to UTF-8.
	get_html_translation_table	The constants ENT_HTML401, ENT_XML1, ENT_XHTML and ENT_HTML5 were added.
	get_magic_quotes_runtime	总是返回 false，因为魔术引号（magic quotes）功能已经从 PHP 中移除。
	htmlentities	增加常量 ENT_SUBSTITUTE、 ENT_DISALLOWED、 ENT_HTML401、 ENT_XML1、 ENT_XHTML、 ENT_HTML5。
	htmlentities	encoding 参数的默认值改成 UTF-8。
	htmlspecialchars	encoding 参数的默认值改成 UTF-8。
	htmlspecialchars	增加常量 ENT_SUBSTITUTE、 ENT_DISALLOWED、 ENT_HTML401、 ENT_XML1、 ENT_XHTML、 ENT_HTML5。
	htmlspecialchars_decode	增加了 ENT_HTML401、ENT_XML1、 ENT_XHTML 和 ENT_HTML5 等常量。
	http_build_query	加入了 enc_type 参数。
	iconv	这个版本起，字符非法时候会返回 false，除非在输出字符里指定了 //IGNORE 。在之前版本，它会返回一部分字符串。
	imagewebp	支持把 resource 流作为 to 参数传入。
	number_format	This function now supports multiple bytes in dec_point and thousands_sep. Only the first byte of each separator was used in older versions.
	openssl_decrypt	将 raw_output 更改至 options。
5.3.4	get_html_translation_table	The encoding parameter was added.
	rawurlencode	因为 rawurlencode 使用了 EBCDIC，所以波浪线字符不会再被编码。
	strip_tags	strip_tags ignores self-closing XHTML tags in allowable_tags.
5.3.3	openssl_decrypt	添加 iv 参数。
	parse_url	在 URL 解析失败时将不会产生 E_WARNING 级别的错误。
5.3.2	flock	在文件资源句柄关闭时不再自动解锁。现在要解锁必须手动进行。
5.3.0	acosh	This function is now available on all platforms
	asinh	此函数在所有平台上均可用
	atanh	此函数在所有平台上都可以用了
	checkdnsrr	这个函数在Windows平台上也可以使用了。
	clearstatcache	增加了可选的 clear_realpath_cache 和 filename 参数.
	dns_get_record	在此版本之前，如果给参数authns传入值，则必须同时传入addtl的值。
	dns_get_record	可以是在windows平台上使用这个函数了。
	expm1	此函数在所有平台上均可用
	fgetcsv	增加了 escape 参数。
	fnmatch	此函数开始在 Windows 平台上生效。
	func_get_arg	该函数可以在参数列表中使用。
	func_get_arg	If this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns false. （不知道如何翻译跟好，直接参考例2即可明白）
	func_get_args	该函数可以在参数列表中使用。
	func_get_args	If this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns false. （不知道如何翻译跟好，直接参考例2即可明白）
	func_num_args	This function can now be used in parameter lists.
	func_num_args	If this function is called from the outermost scope of a file which has been included by calling include or require from within a function in the calling file, it now generates a warning and returns -1.
	get_cfg_var	get_cfg_var 被修复，能够返回 "array" 的 ini 选项。
	getimagesize	Added icon support.
	getmxrr	Windows 平台上也能用这个函数了。
	htmlentities	增加常量 ENT_IGNORE。
	htmlspecialchars	增加常量 ENT_IGNORE。
	imagecolorclosesthwb	在 Windows 平台上可用
	imagefilter	Pixelation support (IMG_FILTER_PIXELATE) was added.
	ini_get	当配置项不存在，之前会返回空字符串，现在会返回 false。
	ini_get_all	增加参数 details。
	link	该功能在 Windows 平台下开始有效（Vista、 Server 2008 或更高版本）。
	linkinfo	Windows 平台上开始可用（Vista、Server 2008 或更高版本）。
	log1p	此函数在所有平台上均可用
	nl2br	新增可选的 is_xhtml 参数。在此之前，总是插入 '<br />'。
	openssl_open	添加了 method 参数
	openssl_seal	添加 method 变量。
	rawurlencode	现在符合了RFC 3986。
	readlink	此函数在 Windows 平台下可用（Vista、Server 2008 或更高版本）。
	session_start	如果函数调用失败返回 false，之前版本返回了 true。
	setlocale	This function now throws an E_DEPRECATED notice if a string is passed to the category parameter instead of one of the LC_* constants.
	spl_autoload_register	引入了命名空间的支持。
	spl_autoload_register	添加了 prepend 参数。
	stristr	新增可选的 before_needle 参数。
	strstr	新增可选的 before_needle 参数。
	symlink	此函数在 Windows 平台上可用（Vista、Server 2008 或更高版本）。
	time_nanosleep	至此之后该函数在Windows平台下可用。
	time_sleep_until	自此，函数在Windows平台可用。
5.2.10	ip2long	再此之前的版本, ip2long 有时会返回即使这不是一个IPV4的标准地址的数字地址。
5.2.6	fopen	增加了选项 'c' 和 'c+'
5.2.5	addcslashes	The escape sequences \v and \f were added.
	imagefilter	Alpha support for IMG_FILTER_COLORIZE was added.
5.2.4	checkdnsrr	增加了TXT的记录类型。
5.2.3	getimagesize	Read errors generated by this function downgraded to E_NOTICE from E_WARNING.
	htmlentities	增加参数 double_encode。
	htmlspecialchars	增加参数 double_encode。
	PDOStatement::getColumnMeta	table 字段
5.2.2	ftp_ssl_connect	以前版本中，如果无法使用 SSL 连接，将会返回一个非 SSL 的连接，在 5.2.2 版本中修改为返回 false
	phpinfo	增加了“已加载的配置文件”信息，之前只存在“配置文件路径(php.ini)"。
	token_get_all	Line numbers are returned in element 2
5.2.1	iterator_to_array	添加了 use_keys 参数。
	memory_get_peak_usage	使用此函数无需在编译时加上 --enable-memory-limit 选项。
	memory_get_usage	不需要在编译时使用 --enable-memory-limit 选项就能够使用这个函数。
	mt_srand	The Mersenne Twister implementation in PHP now uses a new seeding algorithm by Richard Wagner. Identical seeds no longer produce the same sequence of values they did in previous versions. This behavior is not expected to change again, but it is considered unsafe to rely upon it nonetheless.
5.2.0	base64_decode	增加了 strict 。
	curl_multi_info_read	msgs_in_queue被加入。
	imagettftext	It is now possible to specify an hexadecimal entity in text.
	mb_strrpos	增加了可选参数 offset。
	memory_get_peak_usage	添加参数 real_usage。
	memory_get_usage	增加了参数 real_usage。
	openssl_verify	添加了 signature_alg 参数。
	session_get_cookie_params	在返回数组中加入 “httponly”。
	session_set_cookie_params	加入 httponly 参数。
	setrawcookie	增加了 httponly 参数。
	PDOStatement::execute	input_parameters 中的键名必须和 SQL 中声明的相匹配。PHP 5.2.0 之前默认忽略。
5.1.3	curl_getinfo	引入CURLINFO_HEADER_OUT.
	get_headers	自 PHP 5.1.3 起本函数使用默认的流上下文，其可以用 stream_context_get_default 函数设定和修改。
	http_build_query	方括号也会被转义。
5.1.2	http_build_query	加入了参数 arg_separator。
	parse_url	增加了参数 component。
5.1.0	class_implements	增加了允许参数class为字符串的选项。增加了autoload参数。
	class_parents	增加了允许参数class为字符串的选项。增加了autoload参数。
	ctype_digit	在 PHP 5.1.0 之前，当 text 是一个空字符串的时候，该函数将返回 true 。
	file_put_contents	添加了对 LOCK_EX 的支持和 data 参数处理 stream 资源的功能。
	imagerotate	新增： ignore_transparent 。
	strftime	现在发布 E_STRICT 和 E_NOTICE 时区错误。
5.0.0	checkdnsrr	增加了AAAA的记录类型。
	fgetss	参数 length 从此开始可选。
	file_put_contents	Added context support
	is_executable	is_executable 开始可用以于 Windows。
	jdtojewish	增加了参数 fl。
	socket_create	增加 AF_INET6 支持。
	strip_tags	strip_tags 变为二进制安全的。
	strrpos	引入 offset 参数。
	strrpos	参数 needle 可以是一个多字符的字符串。