make one video url into many video format url:

function getVideoUrl($link){
	$data = explode('.mp4', $link);
    $decode = urldecode($data[0]);
    $linkDownload = array();
    $v1080p = $decode.'_hd.mp4';
    $v720p = $decode.'_dvd.mp4';
    $v360p = $decode.'_fmt1.ogv';
    $linkDownload['1080p'] = $v1080p;
    $linkDownload['720p'] = $v720p;
    $linkDownload['360p'] = $v360p;

    $files = '';
    foreach ($linkDownload as $key => $l){
        $files .= '["type"=> "video/mp4", "label"=> "'.$key.'", "file"=> "'.$l.'"],';
    }
    if(@!$files) $files = '["type"=> "video/mp4", "label"=> "HD", "file"=> "'.$decode .'=m18'.'"]';
    return '['.rtrim($files, ',').']';
}
//url in html
<input type="text" name="url" />

//url in php
$url = $_POST['url'];

//usages of this function
$linkdown = getVideoUrl($url)