spl_autoload_functions
spl_autoload_unregister
SPL Functions
PHP Manual

# spl_autoload_register

(PHP 5 >= 5.1.2)

spl_autoload_register — Register given function as __autoload() implementation

### Description

bool spl_autoload_register ([ callback `$autoload_function` ] )

Register a function with the spl provided __autoload stack. If the stack is not yet activated it will be activated.

If your code has an existing __autoload function then this function must be explicitly registered on the __autoload stack. This is because spl_autoload_register() will effectively replace the engine cache for the __autoload function by either spl_autoload() or spl_autoload_call().

### Parameters

`autoload_function`

  The autoload function being registered. If no parameter is provided, then the default implementation of spl_autoload() will be registered.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Examples

Example#1 spl_autoload_register() example

`<?php
namespace Foobar;
class Foo {
static public function test($name) {
print '[['. $name .']]';
}
}
spl_autoload_register(__NAMESPACE__ .'::Foo::test'); // As of PHP 5.3.0
new InexistentClass;
?>`

The above example will output something similar to:

    [[Foobar::InexistentClass]]
    Fatal error: Class 'Foobar::InexistentClass' not found in ...

spl_autoload_functions
spl_autoload_unregister
SPL Functions
PHP Manual