PHP Core

Date

The DateTime extension has introduced Date extension specific exceptions and errors under the DateError and DateException hierarchies, instead of warnings and generic exceptions. This improves error handling, at the expense of having to check for errors and exceptions.

DOM

Calling DOMChildNode::after(), DOMChildNode::before(), DOMChildNode::replaceWith() on a node that has no parent is now a no-op instead of a hierarchy exception, which is the behaviour demanded by the DOM specification.

Using the DOMParentNode and DOMChildNode methods without a document now works instead of throwing a DOM_HIERARCHY_REQUEST_ERR DOMException. This is in line with the behaviour demanded by the DOM specification.

Calling DOMDocument::createAttributeNS() without specifying a prefix would incorrectly create a default namespace, placing the element inside the namespace instead of the attribute. This bug is now fixed.

DOMDocument::createAttributeNS() would previously incorrectly throw a DOM_NAMESPACE_ERRNAMESPACE_ERR DOMException when the prefix was already used for a different URI. It now correctly chooses a different prefix when there's a prefix name conflict.

New methods and properties were added to some DOM classes. If a userland class inherits from these classes and declare a method or property with the same name, the declarations must be compatible. Otherwise, a typical compile error about incompatible declarations will be thrown. See the list of new features and new functions for a list of the newly implemented methods and properties.

FFI

C functions that have a return type of void now return null instead of returning the following object object(FFI\CData:void) { }

Opcache

The opcache.consistency_checks INI directive was removed. This feature was broken with the tracing JIT, as well as with inheritance cache, and has been disabled without a way to enable it since PHP 8.1.18 and PHP 8.2.5. Both the tracing JIT and inheritance cache may modify shm after the script has been persisted by invalidating its checksum. The attempted fix skipped over the modifiable pointers but was rejected due to complexity. For this reason, it was decided to remove the feature instead.

Phar

The type of Phar class constants are now declared.

Standard

The range() function has had various changes:

• A TypeError is now thrown when passing objects, resources, or arrays as the boundary inputs.
• A more descriptive ValueError is thrown when passing 0 for $step.
• A ValueError is now thrown when using a negative $step for increasing ranges.
• If $step is a float that can be interpreted as an int, it is now done so.
• A ValueError is now thrown if any argument is infinity or NAN.
• An E_WARNING is now emitted if $start or $end is the empty string. The value continues to be cast to the value 0.
• An E_WARNING is now emitted if $start or $end has more than one byte, only if it is a non-numeric string.
• An E_WARNING is now emitted if $start or $end is cast to an integer because the other boundary input is a number. (e.g. range(5, 'z');).
• An E_WARNING is now emitted if $step is a float when trying to generate a range of characters, except if both boundary inputs are numeric strings (e.g. range('5', '9', 0.5); does not produce a warning).
• range() now produce a list of characters if one of the boundary inputs is a string digit instead of casting the other input to int (e.g. range('9', 'A');).

number_format() now handles negative $decimals values by rounding $num to abs($decimals) digits before the decimal point. Previously, negative $decimals values were ignored.

The file() flags error check now catches all invalid flags. Notably FILE_APPEND was previously silently accepted.

SNMP

The type of SNMP class constants are now declared.