Help with PHP preg_replace() REGEX for MP3 URLs

Question

Ive looked around quite a bit for a regex to help me find a anchor tag with an mp3 as the href. I would like first to get a regex which will locate this pattern so i can replace those links with a player and next i need to extract the link out of the href.

I hardly understand how to create or use a regex so any help to accomplish this will be useful.

Thanks, Jesse

Are you looking for regex patter? – Muneer Jul 01 '10 at 05:59 — Muneer, Jul 01 '10 at 05:59
I have a good rewrite rule against such a hotlinkers :) – Your Common Sense Jul 05 '10 at 07:38 — Your Common Sense, Jul 05 '10 at 07:38

score 1 · Answer 1 · answered Jul 05 '10 at 07:55

1

Supposing you already got the links —e.g. get_elements_by_tagname('a')— all you need to do is:

if( substr($href, -4)=='.mp3' ){
    // Is an MP3 link
}

answered Jul 05 '10 at 07:55

Álvaro González

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Mikulas Dite · Answer 2 · 2010-07-01T06:16:03.627

0

This will do the trick

~<a.*?href="(?P<url>.*?\.mp3(?:\?.*?)?)".*?>~is

however, it's hardly to be considered optimal.

edited Jul 01 '10 at 06:16

answered Jul 01 '10 at 06:03

Mikulas Dite

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what do you mean by its hardly optimal, is there a better way? – Jesse Jul 01 '10 at 07:18

score 0 · Answer 3 · answered Jul 05 '10 at 07:34

at first this didnt quite work for me. I made a couple of changes and now I got it. i needed to change the ~ to a / and i had to replace all the way to the closing anchor tag so heres what im using.

/<a.*?href="(?P<url>.*?\.mp3(?:\?.*?)?)">.*?<\/a>/is

Thanks for getting me in the right direction

Help with PHP preg_replace() REGEX for MP3 URLs

3 Answers3