Regex to find Youtube Link in string

Question

I have a string like that:

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type

This is what I have:

preg_match("(?:http://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?)?([^\s]+?)", $content, $m);
    var_dump( $m );

and want to extract the youtube link form it. The video id, would be okay, too.

Nay help is appreciated!

Avinash Raj · Accepted Answer · 2015-01-15T17:41:08.810

6

This would work for you,

\S*\bwww\.youtube\.com\S*

\S* matches zero or more non-space characters.

Code would be,

preg_match('~\S*\bwww\.youtube\.com\S*~', $str, $matches);

DEMO

And i made Some corrections to your original regex.

(?:https?://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?v=)?([^\s]+)

DEMO

$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";
preg_match('~(?:https?://)?(?:www.)?(?:youtube.com|youtu.be)/(?:watch\?v=)?([^\s]+)~', $str, $match);
print_r($match);

Output:

Array
(
    [0] => https://www.youtube.com/watch?v=7TL02DA5MZM
    [1] => 7TL02DA5MZM
)

edited Jan 15 '15 at 17:41

answered Jan 15 '15 at 17:12

Avinash Raj

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I am getting errors with your regex:Unknown modifier '?' in – user998163 Jan 15 '15 at 17:24
see my update.. It works for me. I think you forget to add the delimiters. – Avinash Raj Jan 15 '15 at 17:27
It ignores youtu.be (ex.https://youtu.be/NFD1dtTosQc) – user998163 Jan 15 '15 at 17:36
see my update.. Just put `v=` to the previous optional group. – Avinash Raj Jan 15 '15 at 17:41
Don't forget to escape the forward slash characters! – GWR Jan 10 '16 at 14:48

score 2 · Answer 2 · answered Jan 15 '15 at 17:14

2

(?:https?:\/\/)?www\.youtube\.com\S+?v=\K\S+

You can get video id by matching youtube url and then discarding using \K.See demo.

https://regex101.com/r/tX2bH4/21

$re = "/(?:https?:\\/\\/)?www\\.youtube\\.com\\S+?v=\\K\\S+/i";
$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";

preg_match_all($re, $str, $matches);

answered Jan 15 '15 at 17:14

vks

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almost okay. What about youtu.be? – user998163 Jan 15 '15 at 17:20
@user998163 (?:youtube\.com|youtu\.be) use this in place YouTube\.com – vks Jan 15 '15 at 17:26
can you update your replay, please? I tried (?:youtube\.com|youtu\.be) but did not succeed. – user998163 Jan 15 '15 at 17:29
@user998163 https://regex101.com/r/tX2bH4/22 – vks Jan 15 '15 at 17:34

score 0 · Answer 3 · answered Jan 15 '15 at 17:28

I have come up with the following regexp:

https?:\/\/(w{3}\.)?youtube\.com\/watch\?.+?(\s|$)

Here is how I am using this:

$str = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard  dummy text ever since the 1500s, https://www.youtube.com/watch?v=7TL02DA5MZM when an unknown printer took a galley of type and scrambled it to make a type";

preg_match("/https?:\/\/(w{3}\.)?youtube\.com\/watch\?.+?(\s|$)/", $str, $matches);

$ytube = $matches[0];
$parse = parse_url($ytube);
parse_str($parse["query"], $query);

echo $ytube;
print_r($parse);
print_r($query);

And here is the output of the items:

https://www.youtube.com/watch?v=7TL02DA5MZM
Array
(
    [scheme] => https
    [host] => www.youtube.com
    [path] => /watch
    [query] => v=7TL02DA5MZM 
)
Array
(
    [v] => 7TL02DA5MZM 
)

Regex to find Youtube Link in string

3 Answers3

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