teelou teelou - 1 year ago 50
PHP Question

PHP: How to check whether the URL is Youtube's or vimeo's

How can I write a function to check whether the provided URLs is youtube or vimeo?

For instance, I have this two URLs that I store in a database as strings,



If the URL is youtube then I will rewrite the URL to,


If the URL is vimeo then I will rewrite this URL to,




Regular expressions work well for this type of thing, but often strpos or substr are faster performance wise. Check out the PHP documentation for preg_match(). Below the examples there is a note for exactly this thing.

Here is prototype code it could be coded:

function videoType($url) {
    if (strpos($url, 'youtube') > 0) {
        return 'youtube';
    } elseif (strpos($url, 'vimeo') > 0) {
        return 'vimeo';
    } else {
        return 'unknown';

Obviously returning a string isn't the best idea, but you get the point. Substitute your own business logic.

As others have noted in the comments, this is a quick and dirty solution that does not handle edge cases well. If the url contains "youtube"(example.com/youtube) it will return a false positive. The parse_url() solution mentioned below is a much more robust solution.