You can try Regex here:
$string = "The text you want to filter goes here. http://google.com, https://www.youtube.com/watch?v=K_m7NEDMrV0,https://instagram.com/hellow/";
preg_match_all('#\bhttps?://[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/))#', $string, $match);
echo "";
print_r($match[0]);
echo "
";
This gives the following output:
Array
(
[0] => http://google.com
[1] => https://www.youtube.com/watch?v=K_m7NEDMrV0,https://instagram.com/hellow/
)