PHP: How to know if link is a valid youtube link?

Question

Here are examples.

www.youtube.com,
http://www.youtube.com/,
http://www.youtube.com/watch?v=YoB8t0B4jx4

I don't care if it has video or just youtube url but just valid url. What I want to do is when i know that it is a valid youtube url i will check if it has video ID. If it has ID i will add iframe for video and if has no it will be just plane text. I just want to know if a link is a valid youtube weather it has http or not, weather it has ID or not. Im not good at regular expression now and i need the code now pls help thanks in advance

to other who (-) vote my question sorry i dont look on regex earlier because i did not know regex is short for regular expression T_T — white-comet, Oct 21 '14 at 00:43

score 8 · Accepted Answer · answered Oct 21 '14 at 00:48

How about this:

<?php
$url = "www.youtube.com/cCnrX1w5luM";

$regex_pattern = "/(youtube.com|youtu.be)\/(watch)?(\?v=)?(\S+)?/";
$match;

if(preg_match($regex_pattern, $url, $match)){
    echo "Youtube video id is: ".$match[4];
}else{
    echo "Sorry, not a youtube URL";
}

Demo

Look at the stdout section below in the demo

score 0 · Answer 2 · answered Oct 21 '14 at 00:34

0

If I understand your question correctly then it should be simple as youtube\.com/watch\?v=(.*)

answered Oct 21 '14 at 00:34

Steve

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This doesn't account for shortened URL's like `https://youtu.be` – The Unknown Dev May 02 '17 at 13:12

PHP: How to know if link is a valid youtube link?

2 Answers2

Demo