class_alias

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

class_alias — Creates an alias for a class

Description

class_alias(string $class, string $alias, bool $autoload = true): bool

Creates an alias named alias based on the user defined class class. The aliased class is exactly the same as the original class.

Parameters

class

The original class.

alias

The alias name for the class.

autoload

Whether to autoload if the original class is not found.

Return Values

Returns true on success or false on failure.

Examples

Example #1 class_alias() example

<?php

class foo { }

class_alias('foo', 'bar');

$a = new foo;
$b = new bar;

// the objects are the same
var_dump($a == $b, $a === $b);
var_dump($a instanceof $b);

// the classes are the same
var_dump($a instanceof foo);
var_dump($a instanceof bar);

var_dump($b instanceof foo);
var_dump($b instanceof bar);

?>

The above example will output:

bool(true)
bool(false)
bool(true)
bool(true)
bool(true)
bool(true)
bool(true)

See Also