- strpos: documentation ( source)
<?php
$link = 'http://vbox7.com/play:84837b9763';
//$link = 'https://www.youtube.com/watch?v=zAX0PYJYa5Q';
if(strpos($link, 'vbox7.com'))
{
echo 'vbox7';
}
elseif(strpos($link,'youtube.com'))
{
echo 'vbox7';
}
else
{
echo 'ot tvoq sait link';
}