create gif animation

gistfile1.php

<?php
// create animation gif
function animate($fileList, $delay, $out){
  $img = new Imagick();
  $img->setFormat('gif');
  foreach($fileList as $file) {
    $tmp = new Imagick($file);
    $tmp->setFormat('gif');
    $tmp->setImageDelay($delay);
    $img->addImage($tmp);
    $tmp->destroy();
  }
  $img->writeImages($out, true);
  $img->destroy();
}

animate(array('a.jpg', 'b.gif', 'c.png'), 30, 'out.gif');