How can I strip the data:image part from a base64 string of any image type in PHP

Question

I am currently doing the following to decode base64 images in PHP:

   $img = str_replace(\'data:image/jpeg;base64,\', \'\', $s[\'image\']);
   $img = str_rep         


        

Answer 1

You can use a regular expression:

$img = preg_replace('#data:image/[^;]+;base64,#', '', $s['image']);

if the text you are replacing is the first text in the image, adding ^ at the beginning of the regexp will make it much faster, because it won't analyze the entire image, just the first few characters:

$img = preg_replace('#^data:image/[^;]+;base64,#', '', $s['image']);