How to remove all non-numeric characters from a string in PHP?

[nazmun]

I asked a question about how to remove all characters except numbers in javascript here.

How to keep only numbers in strings with JavaScript?

Can anyone tell me, how can I remove all non-numeric characters from strings in JavaScript? For example, I get textContent from DOM, where I have a text like “ID NO. 94854112”. So how can I keep the only numbers and remove all the other characters? Keep only 94854112.

I want to do the same with PHP. Can anyone help?

[wooshaper]

You can use the same regex expression here in PHP. Just use preg_replace() function instead of JavaScript’s replace() function.

echo preg_replace('/\D/', "", $string);

Or

echo preg_replace('/[^0-9]/', "", $string);