Autoloader Reference

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Below, please find a guide to the methods available in Zend_Loader_Autoloader.

Table 103. Zend_Loader_Autoloader Methods

Method	Return Value	Parameters	Description
`getInstance()`	`Zend_Loader_Autoloader`	N/A	Retrieve the `Zend_Loader_Autoloader` singleton instance. On first retrieval, it registers itself with `spl_autoload`. This method is static.
`resetInstance()`	`void`	N/A	Resets the state of the `Zend_Loader_Autoloader` singleton instance to it's original state, unregistering all autoloader callbacks and all registered namespaces.
`autoload($class)`	`string\|FALSE`	`$class`, required. A string class name to load.	Attempt to resolve a class name to a file and load it.
`setDefaultAutoloader($callback)`	`Zend_Loader_Autoloader`	`$callback`, required.	Specify an alternate PHP callback to use for the default autoloader implementation.
`getDefaultAutoloader()`	`callback`	N/A	Retrieve the default autoloader implementation; by default, this is `Zend_Loader::loadClass()`.
`setAutoloaders(array $autoloaders)`	`Zend_Loader_Autoloader`	`$autoloaders`, required.	Set a list of concrete autoloaders to use in the autoloader stack. Each item in the autoloaders array must be a PHP callback.
`getAutoloaders()`	Array	N/A	Retrieve the internal autoloader stack.
`getNamespaceAutoloaders($namespace)`	Array	`$namespace`, required	Fetch all autoloaders that have registered to load a specific namespace.
`registerNamespace($namespace)`	`Zend_Loader_Autoloader`	`$namespace`, required.	Register one or more namespaces with the default autoloader. If `$namespace` is a string, it registers that namespace; if it's an array of strings, registers each as a namespace.
`unregisterNamespace($namespace)`	`Zend_Loader_Autoloader`	`$namespace`, required.	Unregister one or more namespaces from the default autoloader. If `$namespace` is a string, it unregisters that namespace; if it's an array of strings, unregisters each as a namespace.
`getRegisteredNamespaces()`	Array	N/A	Returns an array of all namespaces registered with the default autoloader.
`suppressNotFoundWarnings($flag = null)`	`boolean\|Zend_Loader_Autoloader`	`$flag`, optional.	Set or retrieve the value of the flag used to indicate whether the default autoloader implementation should suppress "file not found" warnings. If no arguments or a `NULL` value is passed, returns a boolean indicating the status of the flag; if a boolean is passed, the flag is set to that value and the autoloader instance is returned (to allow method chaining).
`setFallbackAutoloader($flag)`	`Zend_Loader_Autoloader`	`$flag`, required.	Set the value of the flag used to indicate whether or not the default autoloader should be used as a fallback or catch-all autoloader for all namespaces.
`isFallbackAutoloader()`	Boolean	N/A	Retrieve the value of the flag used to indicate whether or not the default autoloader should be used as a fallback or catch-all autoloader for all namespaces. By default, this is `FALSE`.
`getClassAutoloaders($class)`	Array	`$class`, required.	Get the list of namespaced autoloaders that could potentially match the provided class. If none match, all global (non-namespaced) autoloaders are returned.
`unshiftAutoloader($callback, $namespace = '')`	`Zend_Loader_Autoloader`	`$callback`, required. A valid PHP callback `$namespace`, optional. A string representing a class prefix namespace.	Add a concrete autoloader implementation to the beginning of the internal autoloader stack. If a namespace is provided, that namespace will be used to match optimistically; otherwise, the autoloader will be considered a global autoloader.
`pushAutoloader($callback, $namespace = '')`	`Zend_Loader_Autoloader`	`$callback`, required. A valid PHP callback `$namespace`, optional. A string representing a class prefix namespace.	Add a concrete autoloader implementation to the end of the internal autoloader stack. If a namespace is provided, that namespace will be used to match optimistically; otherwise, the autoloader will be considered a global autoloader.
`removeAutoloader($callback, $namespace = '')`	`Zend_Loader_Autoloader`	`$callback`, required. A valid PHP callback `$namespace`, optional. A string representing a class prefix namespace, or an array of namespace strings.	Remove a concrete autoloader implementation from the internal autoloader stack. If a namespace or namespaces are provided, the callback will be removed from that namespace or namespaces only.

Autoloader Reference

Zend Framework