Hooks Class Reference

Hooks class. More...

Static Public Member Functions
static	clear ( $name)
	Clears hooks registered via Hooks::register().
static	getHandlers ( $name)
	Returns an array of all the event functions attached to a hook This combines functions registered via Hooks::register and with $wgHooks.
static	isRegistered ( $name)
	Returns true if a hook has a function registered to it.
static	register ( $name, $callback)
	Attach an event handler to a given hook.
static	run ( $event, array $args=[], $deprecatedVersion=null)
	Call hook functions defined in Hooks::register and $wgHooks.
static	runWithoutAbort ( $event, array $args=[], $deprecatedVersion=null)
	Call hook functions defined in Hooks::register and $wgHooks.

Static Protected Attributes
static	$handlers = []
	Array of events mapped to an array of callbacks to be run when that event is triggered.

Static Private Member Functions
static	callHook ( $event, $hook, array $args, $deprecatedVersion=null, &$fname=null)

Detailed Description

Hooks class.

Used to supersede $wgHooks, because globals are EVIL.

Since

1.18

Definition at line 34 of file Hooks.php.

Member Function Documentation

callHook()

static Hooks::callHook ( $event, $hook, array $args, $deprecatedVersion = null, & $fname = null )

staticprivate

Parameters

string	$event	Event name
array | callable	$hook
array	$args	Array of parameters passed to hook functions
string | null	$deprecatedVersion	[optional]
string	&$fname	[optional] Readable name of hook [returned]

Returns

null|string|bool

Definition at line 116 of file Hooks.php.

References $args, $fname, and wfDeprecated().

clear()

static Hooks::clear ( $name )

static

Clears hooks registered via Hooks::register().

Does not touch $wgHooks. This is intended for use while testing and will fail if MW_PHPUNIT_TEST is not defined.

Parameters

string

$name

The name of the hook to clear.

Since

1.21

Exceptions

MWException

If not in testing mode.

Definition at line 63 of file Hooks.php.

getHandlers()

static Hooks::getHandlers ( $name )

static

Returns an array of all the event functions attached to a hook This combines functions registered via Hooks::register and with $wgHooks.

Since

1.18

Parameters

string

$name

Name of the hook

Returns

array

Definition at line 94 of file Hooks.php.

References $name, and $wgHooks.

isRegistered()

static Hooks::isRegistered ( $name )

static

Returns true if a hook has a function registered to it.

The function may have been registered either via Hooks::register or in $wgHooks.

Since

1.18

Parameters

string

$name

Name of hook

Returns

bool True if the hook has a function registered to it

Definition at line 80 of file Hooks.php.

References $wgHooks.

register()

static Hooks::register ( $name, $callback )

static

Attach an event handler to a given hook.

Parameters

string	$name	Name of hook
callable	$callback	Callback function to attach

Since

1.18

Definition at line 49 of file Hooks.php.

References $name.

run()

static Hooks::run ( $event, array $args = [], $deprecatedVersion = null )

static

Call hook functions defined in Hooks::register and $wgHooks.

For the given hook event, fetch the array of hook events and process them. Determine the proper callback for each hook and then call the actual hook using the appropriate arguments. Finally, process the return value and return/throw accordingly.

For hook event that are not abortable through a handler's return value, use runWithoutAbort() instead.

Parameters

string	$event	Event name
array	$args	Array of parameters passed to hook functions
string | null	$deprecatedVersion	[optional] Mark hook as deprecated with version number

Returns

bool True if no handler aborted the hook

Exceptions

Exception
FatalError
MWException

Since

1.22 A hook function is not required to return a value for processing to continue. Not returning a value (or explicitly returning null) is equivalent to returning true.

Definition at line 200 of file Hooks.php.

References $args, and $retval.

Referenced by MediaWiki\Interwiki\ClassicInterwikiLookup\load().

runWithoutAbort()

static Hooks::runWithoutAbort ( $event, array $args = [], $deprecatedVersion = null )

static

Call hook functions defined in Hooks::register and $wgHooks.

Parameters

string	$event	Event name
array	$args	Array of parameters passed to hook functions
string | null	$deprecatedVersion	[optional] Mark hook as deprecated with version number

Returns

bool Always true

Exceptions

MWException	If a callback is invalid, unknown
UnexpectedValueException	If a callback returns an abort value.

Since

1.30

Definition at line 231 of file Hooks.php.

References $args, $fname, and $retval.

Member Data Documentation

$handlers

Hooks::$handlers = []

staticprotected

Array of events mapped to an array of callbacks to be run when that event is triggered.

Definition at line 39 of file Hooks.php.

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The documentation for this class was generated from the following file:

• includes/Hooks.php