New Features

PHP Core

Readonly Amendments

Anonymous classes may now be marked as readonly.

Readonly properties can now be reinitialized during cloning.

Typed Class Constants

Class, interface, trait, and enum constants now support type declarations.

Closures created from magic methods

Closures created from magic methods can now accept named arguments.

The final modifier with a method from a trait

The final modifier may now be used when using a method from a trait.

Override Attribute

Added the #[\Override] attribute to check that a method exists in a parent class or implemented interface.

Fetch class constant dynamically syntax

Class constants can now be accessed dynamically using the C::{$name} syntax.

Static variable Initializers

Static variable initializers can now contain arbitrary expressions.

Fallback value syntax for ini variables

php.ini now supports fallback/default value syntax.

<?php
/*
On /path/to/user.ini contains the following settings:

listen = localhost:${DRUPAL_FPM_PORT:-9000}
*/

$user_ini = parse_ini_file('/path/to/user.ini');
echo
$user_ini['listen']; // localhost:9000

CLI

It is now possible to lint multiple files.

DOM

Added properties DOMElement::$className and DOMElement::$id. These are not binary-safe at the moment because of underlying limitations of libxml2. This means that the property values will be cut off at a NUL byte.

Added properties DOMNode::$isConnected and DOMNameSpaceNode::$isConnected.

Added properties DOMNode::$parentElement and DOMNameSpaceNode::$parentElement.

FFI

It is now possible to assign FFI\CData to other FFI\CData. Meaning CData can now be assigned to structs and fields.

Opcache

opcache_get_status()['scripts'][n]['revalidate'] now contains a Unix timestamp of when the next revalidation of the scripts timestamp is due, dictated by the opcache.revalidate_freq INI directive.

POSIX

posix_getrlimit() now takes an optional $res parameter to allow fetching a single resource limit.

posix_isatty() now raises type warnings for integers following the usual ZPP semantics.

posix_ttyname() now raises type warnings for integers following the usual ZPP semantics and value warnings for invalid file descriptor integers.

Streams

Streams can now emit the STREAM_NOTIFY_COMPLETED notification. This was previously not implemented.

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