Integer Octal Literal Prefix

Octal integers can now use an explicit 0o/0O prefix in integer literals, similarly to binary and hexadecimal integer literals.

<?php
014;  // Non-prefix octal literal
0o14; // Prefixed octal literal
?>

Array Unpacking with String Keys

Added support for array unpacking with strings keys.

<?php
$arr1 = [1, 'a' => 'b'];
$arr2 = [...$arr1, 'c' => 'd']; //[1, 'a' => 'b', 'c' => 'd']
?>

Named Argument After Argument Unpacking

It is now possible to specify named arguments after an argument unpack. e.g. foo(...$args, named: $arg).

full-path Key for File Uploads

File uploads now provide an additional full_path key, which contains the full path (rather than just the basename) of the uploaded file. This is intended for use in conjunction with "upload webkitdirectory".

Enumerations

Support for Enumerations has been added.

Fibers

Support for Fibers has been added.

First Class Callable Syntax

Closures for callables can now be created using the syntax myFunc(...), which is identical to Closure::fromCallable('myFunc').

Note: The ... is part of the syntax, and not an omission.

Intersection Types

Support for intersection types has been added.

Never type

A new return only type never has been added. This indicates that a function either exit, throws an exception, or doesn't terminate.

new in Initializers

It is now possible to use new ClassName() expressions as the default value of a parameter, static variable, global constant initializers, and as attribute arguments. Objects can also be passed to define now.

Readonly properties

Support for readonly has been added.

Final class constants

Added support for the final modifier for class constants. Also, interface constants become overridable by default.

MurmurHash3

Added support for MurmurHash3 with streaming support. The following variants are implemented:

• murmur3a, 32-bit hash
• murmur3c, 128-bit hash for x86
• murmur3f, 128-bit hash for x64

The initial hash state can be passed through the seed key in the options array, for example:

<?php
$h = hash("murmur3f", $data, options: ["seed" => 42]);
echo $h, "\n";
?>

xxHash

Added support for xxHash. The following variants are implemented:

• xxh32, 32-bit hash
• xxh64, 64-bit hash
• xxh3, 64-bit hash
• xxh128, 128-bit hash

The initial hash state can be passed through the seed key in the options array, for example:

<?php
$h = hash("xxh3", $data, options: ["seed" => 42]);
echo $h, "\n";
?>

<?php
$h = hash("xxh3", $data, options: ["secret" => "at least 136 bytes long secret here"]);
echo $h, "\n";
?>

New INI directive mysqli.local_infile_directory

The mysqli.local_infile_directory INI directive has been added, which can be used to specify a directory from which files are allowed to be loaded. It is only meaningful if mysqli.allow_local_infile is not enabled, as all directories are allowed in that case.

Binding parameters in execute

It is now possible to bind parameters by passing them as an array to mysqli_stmt::execute. All values will be bound as strings. Only list arrays are allowed. This new feature is not available when MySQLi is compiled with libmysqlclient.

<?php
$stmt = $mysqli->prepare('INSERT INTO users(id, name) VALUES(?,?)');
$stmt->execute([1, $username]);
?>

New method mysqli_result::fetch_column

mysqli_result::fetch_column has been added to allow fetching a single scalar value from the result set. The new method accepts an optional 0-based column parameter of type int specifying which column to fetch from.

<?php
$result = $mysqli->query('SELECT username FROM users WHERE id = 123');
echo $result->fetch_column();
?>