Question

I need to replace img tag.
Orginal tag is for example :

<img src="index.php?act=img&amp;sub=article&id=35558" width="150" height="172">

then i want to replace it to :

<img src="index.php?act=img&amp;sub=article&amp;id=35558" style="width: 150px; height: 172"/> 

Id in src is changable.
I dont know how to define proper pattern , i’ve tried several but none was worked.

Answer 1

This should work:

$img1 = '<img src="index.php?act=img&amp;sub=article&id=35558" width="150" height="172">';
$img2 = preg_replace('/\<img([^>]+)(width|height)="(\d+)"([^>]*)(width|height)="(\d+)"([^>]*)\>/i', '<img$1 style="$2:$3px;$5:$6px"$4$7>', $img1);

The order of parameters(or any additional) does not matter here.