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PHP 8.2 UPGRADE NOTES | |
1. Backward Incompatible Changes | |
2. New Features | |
3. Changes in SAPI modules | |
4. Deprecated Functionality | |
5. Changed Functions | |
6. New Functions | |
7. New Classes and Interfaces | |
8. Removed Extensions and SAPIs | |
9. Other Changes to Extensions | |
10. New Global Constants | |
11. Changes to INI File Handling | |
12. Windows Support | |
13. Other Changes | |
14. Performance Improvements | |
======================================== | |
1. Backward Incompatible Changes | |
======================================== | |
- Date: | |
. DateTime::createFromImmutable() now has a tentative return type of static, | |
previously it was DateTime. | |
. DateTimeImmutable::createFromMutable() now has a tentative return type of static, | |
previously it was DateTimeImmutable. | |
- ODBC: | |
. The ODBC extension now escapes the username and password for the case when | |
both a connection string and username/password are passed, and the string | |
must be appended to. Before, user values containing values needing escaping | |
could have created a malformed connection string, or injected values from | |
user-provided data. The escaping rules should be identical to the .NET BCL | |
DbConnectionOptions behaviour. | |
- PDO_ODBC: | |
. The PDO_ODBC extension also escapes the username and password when a | |
connection string is passed. See the change to the ODBC extension for | |
further details. | |
- Standard: | |
. strtolower() and strtoupper() are no longer locale-sensitive. They now | |
perform ASCII case conversion, as if the locale were "C". Use | |
mb_strtolower() if you want localized case conversion. Similarly, stristr, | |
stripos, strripos, lcfirst, ucfirst, ucwords, str_ireplace, | |
array_change_key_case and sorting with SORT_FLAG_CASE use ASCII case | |
conversion. | |
. str_split() returns an empty array for an empty string now. Previously it | |
returned an array with a single empty string entry. mb_str_split() is not | |
affected by this change since it was already behaving like that. | |
- SPL: | |
. The following methods now enforce their signature: | |
* SplFileInfo::_bad_state_ex() | |
* SplFileObject::getCsvControl() | |
* SplFileObject::fflush() | |
* SplFileObject::ftell() | |
* SplFileObject::fgetc() | |
* SplFileObject::fpassthru() | |
. SplFileObject::hasChildren() now has a tentative return type of false, | |
previously it was bool | |
. SplFileObject::getChildren() now has a tentative return type of null, | |
previously it was ?RecursiveIterator | |
. GlogIterator returns empty array if all paths are restricted by | |
open_basedir. Previously the error was returned but that behavior was not | |
consistent and did not work correctly. | |
======================================== | |
2. New Features | |
======================================== | |
- Core: | |
. Added the #[\SensitiveParameter] attribute to redact sensitive data in | |
backtraces. | |
RFC: https://wiki.php.net/rfc/redact_parameters_in_back_traces | |
. It is now possible to use null and false as standalone types. | |
RFC: https://wiki.php.net/rfc/null-false-standalone-types | |
. Added support for readonly classes. | |
RFC: https://wiki.php.net/rfc/readonly_classes | |
. Added support for true type. | |
RFC: https://wiki.php.net/rfc/true-type | |
. Added support for Disjoint Normal Form (DNF) types. | |
RFC: https://wiki.php.net/rfc/dnf_types | |
. Added error_log_mode ini setting that allows setting of permissions for | |
error log file. | |
. Added support for fetching properties of enums in constant expressions. | |
RFC: https://wiki.php.net/rfc/fetch_property_in_const_expressions | |
- Curl: | |
. Added CURLINFO_EFFECTIVE_METHOD option and returning the effective | |
HTTP method in curl_getinfo() return value. | |
. Exposed multiple new constants from libcurl 7.62 to 7.80. | |
. Added new function curl_upkeep() to perform any connection upkeep checks. | |
- DBA: | |
. The LMDB Driver now accepts the DBA_LMDB_USE_SUB_DIR or DBA_LMDB_NO_SUB_DIR | |
flags to determine if it should create a sub directory or not when creating | |
a database file. | |
- OCI8: | |
. Added an oci8.prefetch_lob_size directive and oci_set_prefetch_lob() | |
function to tune LOB query performance by reducing the number of | |
round-trips between PHP and Oracle Database when fetching LOBS. This is | |
usable with Oracle Database 12.2 or later. | |
- ODBC: | |
. Added odbc_connection_string_is_quoted, odbc_connection_string_should_quote, | |
and odbc_connection_string_quote. These are primarily used behind the scenes | |
in the ODBC and PDO_ODBC extensions, but is exposed to userland for easier | |
unit testing, and for user applications and libraries to perform quoting | |
themselves. | |
- PCRE: | |
. Added support for the "n" (NO_AUTO_CAPTURE) modifier, which makes simple | |
`(xyz)` groups non-capturing. Only named groups like `(?<name>xyz)` are | |
capturing. This only affects which groups are capturing, it is still | |
possible to use numbered subpattern references, and the matches array will | |
still contain numbered results. | |
- Random: | |
. New extension that organizes and consolidates existing implementations | |
related to random number generators. New, higher quality RNGs are available | |
and scope issues are eliminated. | |
RFC: https://wiki.php.net/rfc/rng_extension | |
RFC: https://wiki.php.net/rfc/random_extension_improvement | |
======================================== | |
3. Changes in SAPI modules | |
======================================== | |
======================================== | |
4. Deprecated Functionality | |
======================================== | |
- Core: | |
. Creation of dynamic properties is deprecated, unless the class opts in by | |
using the #[AllowDynamicProperties] attribute. stdClass allows dynamic | |
properties. Usage of __get()/__set() is not affected by this change. A | |
dynamic properties deprecation warning can be addressed by: | |
- Declaring the property (preferred). | |
- Adding the #[AllowDynamicProperties] attribute to the class (which also | |
applies to all child classes). | |
- Using a WeakMap if you wish to associate additional data with an object | |
you do not own. | |
. Callables that are not accepted by the $callable() syntax (but are accepted | |
by call_user_func) are deprecated. In particular: | |
"self::method" | |
"parent::method" | |
"static::method" | |
["self", "method"] | |
["parent", "method"] | |
["static", "method"] | |
["Foo", "Bar::method"] | |
[new Foo, "Bar::method"] | |
This does not affect normal method callables like "A::method" or | |
["A", "method"]. | |
RFC: https://wiki.php.net/rfc/deprecate_partially_supported_callables | |
RFC: https://wiki.php.net/rfc/partially-supported-callables-expand-deprecation-notices | |
. The "${var}" and "${expr}" style string interpolations are deprecated and | |
will be removed in PHP 9. Use "$var"/"{$var}" or "{${expr}}", respectively. | |
RFC: https://wiki.php.net/rfc/deprecate_dollar_brace_string_interpolation | |
- Mbstring: | |
. Use of QPrint, Base64, Uuencode, and HTML-ENTITIES 'text encodings' is | |
deprecated for all Mbstring functions. Unlike all the other text | |
encodings supported by Mbstring, these do not encode a sequence of | |
Unicode codepoints, but rather a sequence of raw bytes. It is not | |
clear what the correct return values for most Mbstring functions should | |
be when one of these non-encodings is specified. Further, PHP has | |
separate, built-in implementations of all of them; for example, UUencoded | |
data can be handled using convert_uuencode/convert_uudecode. | |
- SPL: | |
. The SplFileInfo::_bad_state_ex() internal method has been deprecated. | |
- Standard: | |
. utf8_encode() and utf8_decode() have been deprecated. | |
======================================== | |
5. Changed Functions | |
======================================== | |
- Core | |
. str*cmp, str*pos, substr_compare functions, using binary safe string | |
comparison now return -1, 0 and 1. | |
- DBA | |
. dba_open() and dba_popen() now have the following enforced function signature | |
dba_open(string $path, string $mode, ?string $handler = null, int $permission = 0o644, int $map_size = 0, ?int $flags = null) | |
. dba_fetch()'s optional skip argument is now at the end in line with | |
PHP userland semantics its signature now is: | |
dba_fetch(string|array $key, $dba, int $skip = 0): string|false | |
The overloaded signature | |
dba_fetch(string|array $key, $skip, $dba): string|false | |
is still accepted, but it is recommended to use the new standard variant. | |
- SPL | |
. The $iterator parameter of iterator_to_array() and iterator_count() is | |
widened to iterable from Iterator, allowing arrays to be passed. | |
RFC: https://wiki.php.net/rfc/iterator_xyz_accept_array | |
======================================== | |
6. New Functions | |
======================================== | |
- Curl: | |
. curl_upkeep() (libcurl >= 7.62.0) | |
- mysqli: | |
. mysqli_execute_query() | |
- Reflection: | |
. ReflectionFunction::isAnonymous() | |
. ReflectionMethod::hasPrototype() | |
- Sodium: | |
. sodium_crypto_stream_xchacha20_xor_ic() | |
- Standard: | |
. The peak memory usage can now be reset to the current usage thanks to | |
memory_reset_peak_usage(). | |
. ini_parse_quantity(): Parses "shorthand bytes" quantities returned by | |
ini_get(). The function is suitable for parsing quantities whose int value | |
is in the range [PHP_INT_MIN, PHP_INT_MAX]. | |
Parsing and interpretation is consistent with ini_set() (see also the | |
"Changes to INI File Handling" section). | |
Caveats: Some ini settings may apply additional constraints to the resuling | |
int value, such as a smaller range, that will not be reflected by | |
ini_parse_quantity(). The `memory_limit` setting accepts values higher than | |
PHP_INT_MAX, than can not be parsed by ini_parse_quantity(). | |
======================================== | |
7. New Classes and Interfaces | |
======================================== | |
======================================== | |
8. Removed Extensions and SAPIs | |
======================================== | |
======================================== | |
9. Other Changes to Extensions | |
======================================== | |
- Date: | |
. DatePeriod properties are now properly declared. | |
- Intl: | |
. IntlBreakIterator, IntlRuleBasedBreakIterator, IntlCodePointBreakIterator, | |
IntlPartsIterator, IntlCalendar, IntlCalendar, Collator, IntlIterator, | |
UConverter, IntlDateFormatter, IntlDatePatternGenerator, MessageFormatter, | |
ResourceBundle, Spoofchecker, IntlTimeZone and Transliterator instances are | |
no longer serializable. Previously, they could be serialized, but | |
unserialization yielded unusable objects or failed. | |
- mysqli: | |
. The support for libmysql has been removed. It's no longer possible to compile | |
mysqli with libmysql and all relevant functionality has been removed. | |
. The reconnect property of mysqli_driver has been removed. It was supported only by libmysql. | |
. The INI directive mysqli.reconnect has been removed. | |
. The constant MYSQLI_IS_MARIADB has been deprecated. | |
- OCI8: | |
. The minimum Oracle Client library version required is now 11.2. | |
- PCRE: | |
. NUL characters (\0) in pattern strings are now supported. | |
- SQLite3: | |
. sqlite3.defensive is now PHP_INI_USER. | |
- Standard: | |
. getimagesize() now reports the actual image dimensions, bits and channels | |
of AVIF images. Previously, the dimensions have been reported as 0x0, and | |
bits and channels have not been reported at all. | |
- Tidy: | |
. tidy properties are now properly declared. | |
. tidyNode properties are now properly declared as readonly. | |
- Zip: | |
. extension updated to 1.20.0 with new methods: | |
ZipArchive::clearError, getStreamName and getStreamIndex | |
======================================== | |
10. New Global Constants | |
======================================== | |
- COM_DOTNET: | |
. DISP_E_PARAMNOTFOUND | |
. LOCALE_NEUTRAL | |
- Curl: | |
. CURLALTSVC_H1 (libcurl >= 7.64.1) | |
. CURLALTSVC_H2 (libcurl >= 7.64.1) | |
. CURLALTSVC_H3 (libcurl >= 7.64.1) | |
. CURLALTSVC_READONLYFILE (libcurl >= 7.64.1) | |
. CURLAUTH_AWS_SIGV4 (libcurl >= 7.75.0) | |
. CURLE_PROXY (libcurl >= 7.73.0) | |
. CURLFTPMETHOD_DEFAULT | |
. CURLHSTS_ENABLE (libcurl >= 7.74.0) | |
. CURLHSTS_READONLYFILE (libcurl >= 7.74.0) | |
. CURLINFO_PROXY_ERROR (libcurl >= 7.73.0) | |
. CURLINFO_REFERER (libcurl >= 7.76.0) | |
. CURLINFO_RETRY_AFTER (libcurl >= 7.66.0) | |
. CURLMOPT_MAX_CONCURRENT_STREAMS (libcurl >= 7.67.0) | |
. CURLOPT_ALTSVC_CTRL (libcurl >= 7.64.1) | |
. CURLOPT_ALTSVC (libcurl >= 7.64.1) | |
. CURLOPT_AWS_SIGV4 (libcurl >= 7.75.0) | |
. CURLOPT_CAINFO_BLOB (libcurl >= 7.77.0) | |
. CURLOPT_DOH_SSL_VERIFYHOST (libcurl >= 7.76.0) | |
. CURLOPT_DOH_SSL_VERIFYPEER (libcurl >= 7.76.0) | |
. CURLOPT_DOH_SSL_VERIFYSTATUS (libcurl >= 7.76.0) | |
. CURLOPT_HSTS_CTRL (libcurl >= 7.74.0) | |
. CURLOPT_HSTS (libcurl >= 7.74.0) | |
. CURLOPT_MAIL_RCPT_ALLLOWFAILS (libcurl >= 7.69.0) | |
. CURLOPT_MAXAGE_CONN (libcurl >= 7.65.0) | |
. CURLOPT_MAXFILESIZE_LARGE | |
. CURLOPT_MAXLIFETIME_CONN (libcurl >= 7.80.0) | |
. CURLOPT_PROXY_CAINFO_BLOB (libcurl >= 7.77.0) | |
. CURLOPT_SASL_AUTHZID (libcurl >= 7.66.0) | |
. CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 (libcurl >= 7.80.0) | |
. CURLOPT_SSL_EC_CURVES (libcurl >= 7.73.0) | |
. CURLOPT_UPKEEP_INTERVAL_MS (libcurl >= 7.62.0) | |
. CURLOPT_UPLOAD_BUFFERSIZE (libcurl >= 7.62.0) | |
. CURLOPT_XFERINFOFUNCTION (libcurl >= 7.32.0) | |
. CURLPROTO_MQTT (libcurl >= 7.71.0) | |
. CURLPX_BAD_ADDRESS_TYPE (libcurl >= 7.73.0) | |
. CURLPX_BAD_VERSION (libcurl >= 7.73.0) | |
. CURLPX_CLOSED (libcurl >= 7.73.0) | |
. CURLPX_GSSAPI (libcurl >= 7.73.0) | |
. CURLPX_GSSAPI_PERMSG (libcurl >= 7.73.0) | |
. CURLPX_GSSAPI_PROTECTION (libcurl >= 7.73.0) | |
. CURLPX_IDENTD_DIFFER (libcurl >= 7.73.0) | |
. CURLPX_IDENTD (libcurl >= 7.73.0) | |
. CURLPX_LONG_HOSTNAME (libcurl >= 7.73.0) | |
. CURLPX_LONG_PASSWD (libcurl >= 7.73.0) | |
. CURLPX_LONG_USER (libcurl >= 7.73.0) | |
. CURLPX_NO_AUTH (libcurl >= 7.73.0) | |
. CURLPX_OK (libcurl >= 7.73.0) | |
. CURLPX_RECV_ADDRESS (libcurl >= 7.73.0) | |
. CURLPX_RECV_AUTH (libcurl >= 7.73.0) | |
. CURLPX_RECV_CONNECT (libcurl >= 7.73.0) | |
. CURLPX_RECV_REQACK (libcurl >= 7.73.0) | |
. CURLPX_REPLY_ADDRESS_TYPE_NOT_SUPPORTED (libcurl >= 7.73.0) | |
. CURLPX_REPLY_COMMAND_NOT_SUPPORTED (libcurl >= 7.73.0) | |
. CURLPX_REPLY_CONNECTION_REFUSED (libcurl >= 7.73.0) | |
. CURLPX_REPLY_GENERAL_SERVER_FAILURE (libcurl >= 7.73.0) | |
. CURLPX_REPLY_HOST_UNREACHABLE (libcurl >= 7.73.0) | |
. CURLPX_REPLY_NETWORK_UNREACHABLE (libcurl >= 7.73.0) | |
. CURLPX_REPLY_NOT_ALLOWED (libcurl >= 7.73.0) | |
. CURLPX_REPLY_TTL_EXPIRED (libcurl >= 7.73.0) | |
. CURLPX_REPLY_UNASSIGNED (libcurl >= 7.73.0) | |
. CURLPX_REQUEST_FAILED (libcurl >= 7.73.0) | |
. CURLPX_RESOLVE_HOST (libcurl >= 7.73.0) | |
. CURLPX_SEND_AUTH (libcurl >= 7.73.0) | |
. CURLPX_SEND_CONNECT (libcurl >= 7.73.0) | |
. CURLPX_SEND_REQUEST (libcurl >= 7.73.0) | |
. CURLPX_UNKNOWN_FAIL (libcurl >= 7.73.0) | |
. CURLPX_UNKNOWN_MODE (libcurl >= 7.73.0) | |
. CURLPX_USER_REJECTED (libcurl >= 7.73.0) | |
. CURLSSLOPT_AUTO_CLIENT_CERT (libcurl >= 7.77.0) | |
. CURLSSLOPT_NATIVE_CA (libcurl >= 7.71.0) | |
. CURLSSLOPT_NO_PARTIALCHAIN (libcurl >= 7.68.0) | |
. CURLSSLOPT_REVOKE_BEST_EFFORT (libcurl >= 7.70.0) | |
. CURL_VERSION_GSASL (libcurl >= 7.76.0) | |
. CURL_VERSION_HSTS (libcurl >= 7.74.0) | |
. CURL_VERSION_HTTP3 (libcurl >= 7.66.0) | |
. CURL_VERSION_UNICODE (libcurl >= 7.72.0) | |
. CURL_VERSION_ZSTD (libcurl >= 7.72.0) | |
- Filter | |
. FILTER_FLAG_GLOBAL_RANGE | |
- Sockets: | |
. SO_INCOMING_CPU | |
. SO_MEMINFO | |
. SO_RTABLE (OpenBSD) | |
. TCP_KEEPALIVE (MacOS) | |
. TCP_KEEPCNT (Linux, others) | |
. TCP_KEEPIDLE (Linux, others) | |
. TCP_KEEPINTVL (Linux, others) | |
. TCP_NOTSENT_LOWAT | |
. LOCAL_CREDS_PERSISTENT (FreeBSD) | |
. SCM_CREDS2 (FreeBSD) | |
. LOCAL_CREDS (NetBSD) | |
. SO_BPF_EXTENSIONS | |
. SO_SETFIB | |
. TCP_CONGESTION (Linux, FreeBSD) | |
. SO_ZEROCOPY (Linux) | |
. MSG_ZEROCOPY (Linux) | |
======================================== | |
11. Changes to INI File Handling | |
======================================== | |
- Parsing of some ill-formatted values will now trigger a warning when this was | |
silently ignored before. Interpretation of these values is not changed, for | |
backwards compatibility. This affects the following settings: | |
. bcmath.scale | |
. com.code_page | |
. default_socket_timeout | |
. fiber.stack_size | |
. hard_timeout | |
. intl.error_level | |
. ldap.max_links | |
. max_input_nesting_level | |
. max_input_vars | |
. mbstring.regex_retry_limit | |
. mbstring.regex_stack_limit | |
. mysqli.allow_local_infile | |
. mysqli.allow_persistent | |
. mysqli.default_port | |
. mysqli.max_links | |
. mysqli.max_persistent | |
. mysqli.reconnect | |
. mysqli.rollback_on_cached_plink | |
. mysqlnd.log_mask | |
. mysqlnd.mempool_default_size | |
. mysqlnd.net_read_buffer_size | |
. mysqlnd.net_read_timeout | |
. oci8.default_prefetch | |
. oci8.max_persistent | |
. oci8.persistent_timeout | |
. oci8.ping_interval | |
. oci8.prefetch_lob_size | |
. oci8.privileged_connect | |
. oci8.statement_cache_size | |
. odbc.allow_persistent | |
. odbc.check_persistent | |
. odbc.defaultbinmode | |
. odbc.default_cursortype | |
. odbc.defaultlrl | |
. odbc.max_links | |
. odbc.max_persistent | |
. opcache.consistency_checks | |
. opcache.file_update_protection | |
. opcache.force_restart_timeout | |
. opcache.interned_strings_buffer | |
. opcache.jit_bisect_limit | |
. opcache.jit_blacklist_root_trace | |
. opcache.jit_blacklist_side_trace | |
. opcache.jit_debug | |
. opcache.jit_hot_func | |
. opcache.jit_hot_loop | |
. opcache.jit_hot_return | |
. opcache.jit_hot_side_exit | |
. opcache.jit_max_exit_counters | |
. opcache.jit_max_loop_unrolls | |
. opcache.jit_max_polymorphic_calls | |
. opcache.jit_max_recursive_calls | |
. opcache.jit_max_recursive_returns | |
. opcache.jit_max_root_traces | |
. opcache.jit_max_side_traces | |
. opcache.log_verbosity_level | |
. opcache.max_file_size | |
. opcache.opt_debug_level | |
. opcache.optimization_level | |
. opcache.revalidate_freq | |
. output_buffering | |
. pcre.backtrack_limit | |
. pcre.recursion_limit | |
. pgsql.max_links | |
. pgsql.max_persistent | |
. post_max_size | |
. realpath_cache_size | |
. realpath_cache_ttl | |
. session.cache_expire | |
. session.cookie_lifetime | |
. session.gc_divisor | |
. session.gc_maxlifetime | |
. session.gc_probability | |
. soap.wsdl_cache_limit | |
. soap.wsdl_cache_ttl | |
. unserialize_max_depth | |
. upload_max_filesize | |
. user_ini.cache_ttl | |
. xmlrpc_error_number | |
. zend.assertions | |
. zlib.output_compression_level | |
======================================== | |
12. Windows Support | |
======================================== | |
- Core: | |
. Windows specific error messages are no longer localized, but instead in | |
English to better match PHP error messages. | |
. Preliminary and highly experimental support for building on ARM64 has been | |
added. | |
- OCI8: | |
. Since building against Oracle Client 10g is no longer supported anyway, | |
the configuration option --with-oci8 has been dropped. --with-oci8-11g, | |
--with-oci8-12c and --with-oci8-19 are still supported. | |
- Zip: | |
. The Zip extension upgraded to version 1.21.0 | |
. The Zip extension is now built as shared library (DLL) by default. | |
======================================== | |
13. Other Changes | |
======================================== | |
- CLI: | |
. The STDOUT, STDERR and STDIN are no longer closed on resource destruction | |
which is mostly when the CLI finishes. It is however still possible to | |
explicitly close those streams using fclose and similar. | |
- Core: | |
. The iterable type is now a built-in compile time alias for array|Traversable. | |
Error messages relating to iterable will therefore now use array|Traversable. | |
Type Reflection is preserved for single iterable (and ?iterable) to produce | |
a ReflectionNamedType with name iterable, however usage of iterable in | |
union types will be converted to array|Traversable | |
======================================== | |
14. Performance Improvements | |
======================================== |