Creating code blocks with [code] tags

[Pilot-Doofy]

I'm recoding some of my forums and I'm trying to prevent the overuse of slow functions such as explode(); etc. I decided a more formal approach would be a regular expression.

 

However, when I run the regular expression how would I run a function on the string that is returned? Here is my regular expression:

 

$string = preg_replace('#(\[code\])(.+)(\[/code\])#si', '\\2', $string);

 

I have the string returned between the code tags but here is what I tried to do:

 

$string = preg_replace('#(\[code\])(.+)(\[/code\])#si', hightlight_string('\\2'), $string);

 

How would I get the highlight_string(); function to work with the text that is between the

 tags? This doesn't work.

[Pilot-Doofy]

Anyone have any idea?