Zend_Stdlib_CallbackHandler Class Reference

Public Member Functions
	__construct ($callback, array $metadata=array())
	Constructor.
	errorHandler ($errno, $errstr)
	Error handler.
	getCallback ()
	Retrieve registered callback.
	call (array $args=array())
	Invoke handler.
	__invoke ()
	Invoke as functor.
	getMetadata ()
	Get all callback metadata.
	getMetadatum ($name)
	Retrieve a single metadatum.

Protected Member Functions
	registerCallback ($callback)
	Registers the callback provided in the constructor.
	validateStringCallbackFor54 ($callback)
	Validate a static method call.

Protected Attributes
	$callback
	$error = false
	$metadata

Constructor & Destructor Documentation

__construct	(		$callback,
		array	$metadata = array()
	)

Constructor.

Parameters

string	$event	Event to which slot is subscribed
string | array | object	$callback	PHP callback
array	$options	Options used by the callback handler (e.g., priority)

Returns

void

Member Function Documentation

__invoke

(

)

Invoke as functor.

Returns

mixed

call

(

array

$args = array()

)

Invoke handler.

Parameters

array

$args

Arguments to pass to callback

Returns

mixed

errorHandler	(		$errno,
			$errstr
	)

Error handler.

Used by registerCallback() when calling is_callable() to capture engine warnings.

Parameters

int	$errno
string	$errstr

Returns

void

getCallback

(

)

Retrieve registered callback.

Returns

Callable

getMetadata

(

)

Get all callback metadata.

Returns

array

getMetadatum

(

$name

)

Retrieve a single metadatum.

Parameters

string

$name

Returns

mixed

registerCallback (   $callback )

protected

Registers the callback provided in the constructor.

If you have pecl/weakref {

See Also

http://pecl.php.net/weakref} installed, this method provides additional behavior.

If a callback is a functor, or an array callback composing an object instance, this method will pass the object to a WeakRef instance prior to registering the callback.

Parameters

Callable

$callback

Returns

void

validateStringCallbackFor54 (   $callback )

protected

Validate a static method call.

Validates that a static method call in PHP 5.4 will actually work

Parameters

string

$callback

Returns

true

Exceptions

Zend_Stdlib_Exception_InvalidCallbackException

if invalid

Member Data Documentation

$callback

protected

$error = false

protected

$metadata

protected