How to preg_replace all links to images (with and without https?)

Question

I am using Regexpal.com and I saw this SO Question

I am trying to NOT match a string.

I need to preg_replace all occurences of links to images with the string <<IMAGE:{link}>>. So I was thinking to use (https?:\/\/)?\S*(jpg|png|jpeg|bmp|gif) ORing with the same thing but without the preceding (https?://)

so that:

Hi there this is an image link https://facebook.com/images/2323.jpg
and this one is too mysite.org/1.png

would become that:

Hi there this is an image link
<<IMAGE:https://facebook.com/images/2323.jpg>> and this one is too
<<IMAGE:mysite.org/1.png>>

What do you mean with "trying to NOT match a string"? Apart from that, there're already [many questions on the subject](https://www.google.com/search?q=stack+overflow+php+find+urls+in+text). — Álvaro González, Feb 05 '13 at 12:03
Sorry, I posted the wrong link, removed the comment later and added a new comment with the right link. — Álvaro González, Feb 05 '13 at 12:05
Sorry, edited the post. @Ashwini Agarwal, following "would become that" — Ted, Feb 05 '13 at 12:12

score 1 · Answer 1 · answered Feb 05 '13 at 12:15

1

I think you want this...

$str = 'Hi there this is an image link https://facebook.com/images/2323.jpg
and this one is too mysite.org/1.png';

$regex = '/((https?:\/\/)?\S*(jpg|png|jpeg|bmp|gif))/';

$str = preg_replace($regex, '<<IMAGE:$1>>', $str);
echo $str;

Output

Hi there this is an image link <<IMAGE:https://facebook.com/images/2323.jpg>>
and this one is too <<IMAGE:mysite.org/1.png>>

Codepad

answered Feb 05 '13 at 12:15

Ashwini Agarwal

4,828
2
42
59

This looks good, but it matches dsfhttps://facebook.com/images/2323.jpg too which is not a valid link! – Ted Feb 05 '13 at 12:47

How to preg_replace all links to images (with and *without* https?)

1 Answers1

How to preg_replace all links to images (with and without https?)