Question

I’ve got a string like this:

Here is my code sample, its not too great:

[CODE]
<?php
    echo "Some testing...";
?>
[/CODE]

I hope you enjoy.

Now I want to replace ALL occurrences of [CODE] … [/CODE] with the return value of highlight_string($content_of_CODE). The [CODE]..[/CODE]-pair may appear multiple times in the string.

How can I solve this without using eval?

Thank you for your help!

Answer 1

Assuming [CODE] blocks are not nested, preg_replace_callback() is a perfect candidate.

preg_replace_callback('/\[CODE\](.*?)\[/CODE\]/', 'highlight_string');