public function getPropWidth($height)
    {
        $ratio = (int) $height / $this->height;
        return $this->width * $ratio;
    }
public function getPropWidth($height)
    {
        $ratio = (int) $height / $this->height;
        return $this->width * $ratio;
    }
public function getPropWidth ( $ height ) { $ ratio = ( int ) $ height / $ this -> height ; return $ this -> width * $ ratio ; }
Gets proportional width of image from height value.

@access public
@param int $height
@return int
Gets proportional width of image from height value .