Description: ------------ A function of which one does not directly control the arguments (e.g. a callback, a hook etc.) often causes UnusedFunctionParameter warnings because, though I omit unused arguments from the signature at the end, I can't omit ones in the middle of the arguments list. For example: Hooks::emit( 'some event', array( $foo, $bar, $quux ) ); Hooks::on( 'some event', array( $this, 'x' ); /** * @parma $foo * @parma $bar * @parma $quux */ public function x ( $foo, $bar ) { return $this->handle( $bar ); } In such case it should either ignore $foo, or perhaps use a different sub-sniff name (UnusedFunctionParameter.MiddleFound in addition to UnusedFunctionParameter.Found or whatever) so that one can disable it from the ruleset.xml.