Manual:Hooks/EditFilterMergedContent

This may be triggered by the EditPage or any other facility that modifies page content. Use the $status object to indicate whether the edit should be allowed, and to provide a reason for disallowing it. Return false to abort the edit, and true to continue. Returning true if $status->isOK returns false means "don't save but continue user interaction", e.g. show the edit form.

Details

 * $context: object implementing the IContextSource interface.
 * $content: content of the edit box, as a Content object.
 * $status: Status object to represent errors, etc.
 * $summary: Edit summary for page
 * $user: the User object representing the user whois performing the edit.
 * $minoredit: whether the edit was marked as minor by the user.