CLI

The STDOUT, STDERR and STDIN streams 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 strcmp(), strcasecmp(), strncmp(), strncasecmp(), and substr_compare() functions, using binary safe string comparison is no longer guaranteed to return strlen($string1) - strlen($string2) when string lengths are not equal, but may now return -1 or 1 instead. Instead of depending on any concrete value, the return value should be compared to 0.

DBA

dba_open() and dba_popen() now have the following enforced signature:

dba_fetch()'s optional skip argument is now at the end in line with PHP userland semantics. Its signature is now:

The overloaded signature: is still accepted, but it is recommended to use the new standard variant.

Random

random_bytes() and random_int() now throw a \Random\RandomException on CSPRNG failures. Previously a plain \Exception was thrown instead.

SPL

The iterator parameter of iterator_to_array() and iterator_count() is widened to iterable from Iterator, allowing arrays to be passed.

Date

The properties of DatePeriod are now properly declared.

Default timezone will fall back to UTC if the date.timezone ini setting is not set.

Intl

Instances of IntlBreakIterator, IntlRuleBasedBreakIterator, IntlCodePointBreakIterator, IntlPartsIterator, IntlCalendar, Collator, IntlIterator, UConverter, IntlDateFormatter, IntlDatePatternGenerator, MessageFormatter, ResourceBundle, Spoofchecker, IntlTimeZone, and Transliterator are no longer serializable. Previously, they could be serialized, but unserialization yielded unusable objects or failed.

MySQLi

The support for libmysql has been removed and it is no longer possible to compile mysqli with libmysql. From now on, the mysqli extension can be compiled only with mysqlnd. All libmysql features unavailable in mysqlnd have been removed:

• The reconnect property of mysqli_driver
• The mysqli.reconnect INI directive
• The MYSQLI_IS_MARIADB constant 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.

Session

Trying to change the session.cookie_samesite INI directive while the session is active or output has already been sent will now fail and emit a warning. This aligns the behaviour with all other session INI settings.

SQLite3

sqlite3.defensive is now 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

The properties of the tidy class are now properly declared. And those of the tidyNode class are now properly declared as readonly.

Zip

The Zip extension has been updated to version 1.20.0, which adds the following methods:

• ZipArchive::clearError()
• ZipArchive::getStreamName()
• ZipArchive::getStreamIndex()