Question

I need a regex expression (PCRE) to match a integer number inside a string, being the string like : image89.jpg

I’ve tried many options without success.

I’m using preg_replace() by the way

My last attempt :

preg_replace('(\d+)', '$1', 'image89.jpg');

Answer 1

preg_match('/\d+/', 'image89.jpg', $matches);
$digit = $matches[0];

If you plan to find multiple sets of digits in the same string, you’ll want to use preg_match_all.