public function addFilter($filterName, $filterCall, $prio, $numVars)
    {
        $this->filters[] = $this->add($filterName, $filterCall, $prio, $numVars);

        return $this;
    }
public function addFilter($filterName, $filterCall, $prio, $numVars)
    {
        $this->filters[] = $this->add($filterName, $filterCall, $prio, $numVars);

        return $this;
    }
public function addFilter ( $ filterName , $ filterCall , $ prio , $ numVars ) { $ this -> filters [ ] = $ this -> add ( $ filterName , $ filterCall , $ prio , $ numVars ) ; return $ this ; }
Wordpress mock on add_filter func.

@param string   $filterName
@param callback $filterCall
@param int      $prio
@param int      $numVars

@return self
Wordpress mock on add_filter func .