public function get_720p_mp4(){
for ($i = count($this->obj_array) - 1; $i >= 0; $i--){
if ( $this->obj_array[$i]->type == 'video/mpeg4'){
return $this->obj_array[$i]->url;
}
}
}

/**
* @return string
* It return 480p.mp4
*/
public function get_480p_mp4(){
for ($i = 0; $i < count($this->obj_array); $i++){
if ( $this->obj_array[$i]->type == 'video/mpeg4'){
return $this->obj_array[$i]->url;
}
}
}
}




$picasa = new Picasa($link2);
echo $picasa->get_720p_mp4();
?>

ane mau buat php diatas mempnyai fungsi redirect otomatis ke url yg dihasilkan oleh echo $picasa->get_720p_mp4();, ada solusi master2?sory scripny ane potong sebagian.