Manual:Hooks/LinkBegin

LinkBegin
Available from version 1.14.0 Removed in version 1.36.0 (Gerrit change 593874) Used when generating internal and interwiki links in Linker::link(), before processing starts.
Define function:	public static function onLinkBegin( $dummy, $target, &$html, &$customAttribs, &$query, &$options, &$ret ) { ... }
Attach hook:	In extension.json: { "Hooks": { "LinkBegin": "MediaWiki\\Extension\\MyExtension\\Hooks::onLinkBegin" } }
Called from:	File(s): linker/LinkRenderer.php Function(s): runLegacyBeginHook
Interface:	LinkBeginHook.php

For more information about attaching hooks, see Manual:Hooks .
For examples of extensions using this hook, see Category:LinkBegin extensions.

Warning

In MediaWiki 1.28 it was superseded with HtmlPageLinkRendererBegin . LinkBegin is considered outdated.

Details

Return false to skip default processing and return $ret. See documentation for Linker::link() for details on the expected meanings of parameters.

• $dummy: used to be a skin, but that eliminated.
• $target: the Title that the link is pointing to.
• &$html
• &$customAttribs: the HTML attributes (such as title and class; href is ignored) that the ‎<a> tag should have, in associative array form, with keys and values unescaped. Should be merged with default values, with a value of false meaning to suppress the attribute. Other attributes will replace default attributes.
• &$query: the query string to add to the generated URL (the bit after the "?"), in associative array form, with keys and values unescaped. Query keys and values will be URL-encoded.
• &$options: the options. Can include 'known', 'broken', 'noclasses', 'forcearticlepath', 'http', or 'https'.
• &$ret: the value to return if your hook returns false.

$options values

• 'known': Page is known to exist, so don't check if it does.
• 'broken': Page is known not to exist, so don't check if it does.
• 'noclasses': Don't add any classes automatically (includes "new", "stub", "mw-redirect", "extiw"). Only use the class attribute provided, if any, so you get a simple blue link with no funny icons.
• 'forcearticlepath': Use the article path always, even with a querystring. Has compatibility issues on some setups, so avoid wherever possible.
• 'http': Force a full URL with http:// as the scheme.
• 'https': Force a full URL with https:// as the scheme.

Example

The following code will show all wikilinks as broken (i.e. as red links) by changing the $customAttribs class to "new":

$wgHooks['LinkBegin'][] = 'ExampleExtension::exampleExtensionLinkBegin';

class ExampleExtension {
	public static function exampleExtensionLinkBegin( $dummy, $target, &$html, &$customAttribs, &$query,
		&$options, &$ret ) {
		$customAttribs['class'] = 'new';
		return true;
	}
}

Another way to achieve the same result would be to change $ret instead of $customAttribs and return false, like this:

$wgHooks['LinkBegin'][] = 'ExampleExtension::exampleExtensionLinkBegin';

class ExampleExtension {
	public static function exampleExtensionLinkBegin( $dummy, $target, &$html, &$customAttribs, &$query,
		&$options, &$ret ) {
		$ret = Html::rawElement ( 'a', array ( 'href' => $target->getFullURL(), 'class' => 'new' ),
			$target->getPrefixedDBKey() );
		return false;
	}
}

Note that neither of these examples will have any effect on interwiki links. For that, you'll need to use LinkEnd . See the example.

See also

• Manual:Hooks/LinkEnd
• Manual:Hooks/HtmlPageLinkRendererBegin
• Manual:Hooks/HtmlPageLinkRendererEnd