spl_autoload_unregister
spl_classes
SPL Functions
PHP Manual

# spl_autoload

(PHP 5 >= 5.1.2)

spl_autoload — Default implementation for __autoload()

### Description

void spl_autoload ( string `$class_name` [, string `$file_extensions` ] )

This function is intended to be used as a default implementation for __autoload(). If nothing else is specified and autoload_register() is called without any parameters then this functions will be used for any later call to __autoload().

### Parameters

`class_name`

`file_extensions`

  By default it checks all include paths to contain filenames built up by the lowercase class name appended by the filename extensions .inc and .php.

### Return Values

No value is returned.

spl_autoload_unregister
spl_classes
SPL Functions
PHP Manual