function getRenditions()
 {
     $mediaItems = createMediaItems();
     foreach ($mediaItems as $mediaItem) {
         if ($mediaItem->videoId == $this->mediaId) {
             $rendition = array("type" => "video/mp4", "src" => $mediaItem->getVideo());
             array_push($this->renditions, $rendition);
             break;
         }
     }
 }
<ul><?php 
include_once "getPlaylist.php";
$mediaItems = createMediaItems();
foreach ($mediaItems as $mediaItem) {
    ?>
        <li<?php 
    if ($mediaItem->isProtected) {
        echo ' class="protected"';
    }
    ?>
><a href="#"
               data-videoid="<?php 
    echo $mediaItem->videoId;
    ?>
"
               data-isprotected="<?php 
    echo $mediaItem->isProtected;
    ?>
"
               data-video="<?php 
    echo $mediaItem->video;
    ?>
"
               data-title="<?php 
    echo $mediaItem->title;
    ?>
"
               data-poster="<?php 
    echo $mediaItem->poster;
    ?>
"