preg replace help needed

I'm trying to remove all bbcode tags in my forum post with the following:

$patterns[0] = "/\[.+\]/i"; 
$replacements[0] = ""; 
$postText = preg_replace($patterns, $replacements, $postText); 

Code (markup):

However this also removes nested tags. Eg:
'tag1 begin, tag2 begin, tag2 end, tag1 end' <-- this will get completely deleted.

Instead it should have matched tag1 then tag2 then... and so on.

Any input on what I can do to accomplish this without trying to match each individual tag?

Thanks in advance.

 

Use ungreedy matching:

"/\[.+?\]/i";

Code (markup):

 

Quick and dirty.

'#\[[^\]]+\]#'

Code (markup):

A little less leanient

'#\[/?[a-z0-9_ ]+\]#i'

Code (markup):

Also a quick note, if there's no alphabet characters (a-z) in your pattern, the "i" flag is absolutely useless.

 

thanks for the answers, ill try it out later tonight

 

Use this:

"/\[(.*?)\]/i"

Code (markup):

it'll surely work