public function removeArgument($name)
    {
        $return = null;

        if (isset($this->arguments[$name])) {
            $return = $this->arguments[$name];

            unset($this->arguments[$name]);
        }

        return $return;
    }
public function removeArgument($name)
    {
        $return = null;

        if (isset($this->arguments[$name])) {
            $return = $this->arguments[$name];

            unset($this->arguments[$name]);
        }

        return $return;
    }
public function removeArgument ( $ name ) { $ return = null ; if ( isset ( $ this -> arguments [ $ name ] ) ) { $ return = $ this -> arguments [ $ name ] ; unset ( $ this -> arguments [ $ name ] ) ; } return $ return ; }
Remove an event argument.

@param   string $name The argument name.

@return  mixed  The old argument value or null if it is not existing.

@since   2.0
Remove an event argument .