replace with tags help

[dadamssg]

I want do exactly what this forum does...as in you can write [ code ] whatever [ / code] and it will replace that with other tags wrapped around "whatever". How do i write a function to do this? i really want to have an image tag. So it would be something like [ img ]url-to-the-image[ /img ]. (Of course i don't want the spaces in the tags...not sure how this forum with interpret it) Then when you write those tags it would replace it with html image tags. how the heck would i write this function? help would be GREATLY appreciated

[The Little Guy]

This should help you out:

 

http://beta.phpsnips.com/snippet.php?id=41

[dadamssg]

i get this when i tried that snippet

 

Warning: preg_replace() [function.preg-replace]: Compilation failed: missing terminating ] for character class at offset 15 in showthread.php on line 30

[The Little Guy]

oops try this:

function text2bbc($text){
$find = array(
	'~\[b\](.*?)\[/b\]~s',
	'~\[i\](.*?)\[/i\]~s',
	'~\[u\](.*?)\[/u\]~s',
	'~\[size=(.*?)\](.*?)\[/size\]~s',
	'~\[color=(.*?)\](.*?)\[/color\]~s'
);
$replace = array(
	'<b>$1</b>',
	'<i>$1</i>',
	'<span style="text-decoration:underline;">$1</span>',
	'<span style="font-size:$1px;">$2</span>',
	'<span style="color:$1;">$2</span>'
);
return preg_replace($find,$replace,$text);
}