Question

I do not understand regular expressions. I need to change an img tag formatted in this manner: <img class="special-class" (then custom srcs and whatever) />. I figure preg_replace would do the job or would there be something more effective?

I just need the regular expression way to search for the full img tag with that first class so i can replace it with another string saved as $buzz

Answer 1

To match a full img tag (with valid html and no unquoted > in there):

preg_match('#<img([^>]+)>#i', $html, $match);

Don’t know what else you want…

$match will contain the full in [0] and the attributes (as string) in [1].

If you want to match the class attribute:

preg_match('#class="([^"])"#i', $html, $match);

edit
Huh this might work:

preg_replace('#<img[^>]+class="[^"]*replace[^"]*"[^>]*>#', '', $html);

If I input:

<img src="oele" class="boele" />
<img src="boele" />
<img src class="replace boele">

it only replaces the last img and leaves the rest untouched.

Regex rules!