Get a specific line from object (php) - php

Question

i get some URLS from HTML site by using
foreach($html->find('source') as $video)
if($video->type =='video/mp4') {
echo $video->src. '<br>';
my output looks like :
http://video.csfd.cz/321/321909/130228151/360.mp4
http://video.csfd.cz/321/321909/130228151/720.mp4
http://video.csfd.cz/321/321909/99476124/360.mp4
http://video.csfd.cz/321/321909/99476124/720.mp4
http://video.csfd.cz/321/321909/99476124/1080.mp4
and i have just no idea how to get just one of this links, i dont know much about objects so it looks pretty impossible for me to solve this problem.
What i try:
I was thinking about converting object to array and work with it, which sound pretty easy, problem is that if i use :
$pole = (array)$video;
echo "$pole[0]";
it says:
http://video.csfd.cz/321/321909/130228151/360.mp4
Notice: Undefined offset: 0 in C:\xampp\htdocs\xampp\ocul\subor.php on line 61
http://video.csfd.cz/321/321909/130228151/720.mp4
Notice: Undefined offset: 0 in C:\xampp\htdocs\xampp\ocul\subor.php on line 61
http://video.csfd.cz/321/321909/99476124/360.mp4
Notice: Undefined offset: 0 in C:\xampp\htdocs\xampp\ocul\subor.php on line 61
http://video.csfd.cz/321/321909/99476124/720.mp4
Notice: Undefined offset: 0 in C:\xampp\htdocs\xampp\ocul\subor.php on line 61
http://video.csfd.cz/321/321909/99476124/1080.mp4
Notice: Undefined offset: 0 in C:\xampp\htdocs\xampp\ocul\subor.php on line 61
if i use print_r the output is like tons of code , atleast for 1-2x A4 page, soemthing really crazy
So is there a way how to get one specific line from this (prefer to let me chose which one) , or some way to convert this output to array or anything like that?

Answer 1

It is a bad idea to convert objects into arrays. You could basicly store the links in an array while looping. Try this :
$links = array();
foreach ($html->find('source') as $video) {
if ($video->type == 'video/mp4') {
array_push($links, $video->src);
}
}
And then just use the $links array however you want :
echo $links[0];