&$join_conds: join conditions for the tables
$opts: FormOptions for this request
+'LoginUserMigrated': Called during login to allow extensions the opportunity to
+inform a user that their username doesn't exist for a specific reason, instead
+of letting the login form give the generic error message that the account does
+not exist. For example, when the account has been renamed or deleted.
+$user: the User object being authenticated against.
+&$msg: the message identifier for abort reason, or an array to pass a message
+ key and parameters.
+
'Collation::factory': Called if $wgCategoryCollation is an unknown collation.
$collationName: Name of the collation in question
&$collationObject: Null. Replace with a subclass of the Collation class that
&$alldata: The localisation data from core and extensions
&purgeBlobs: whether to purge/update the message blobs via MessageBlobStore::clear()
+'LocalisationCacheRecacheFallback': Called for each language when merging
+fallback data into the cache.
+$cache: The LocalisationCache object
+$code: language code
+&$alldata: The localisation data from core and extensions. Note some keys may
+ be omitted if they won't be merged into the final result.
+
'LocalisationChecksBlacklist': When fetching the blacklist of
localisation checks.
&$blacklist: array of checks to blacklist. See the bottom of
which the actual html is constructed.
&$languageLink: array containing data about the link. The following keys can be
modified: href, text, title, class, lang, hreflang. Each of them is a string.
-$languageLinkTitle: Title object belonging to the external language link
-$title: Title object of the page the link belongs to
+$languageLinkTitle: Title object belonging to the external language link.
+$title: Title object of the page the link belongs to.
+$outputPage: The OutputPage object the links are built from.
To alter the structured navigation links in SkinTemplates, there are three
hooks called in different spots:
&$titleArray: set this to an object to override the default object returned
$res: database result used to create the object
+'TitleExists': Called when determining whether a page exists at a given title.
+$title: The title being tested.
+&$exists: Whether the title exists.
+
'TitleQuickPermissions': Called from Title::checkQuickPermissions to add to
or override the quick permissions check.
$title: The Title object being accessed