Preg Replace and BB Codes

[ShoeLace1291]

I've never really made my own bbcode parser function before, but I'm going off of different tutorials to help me create my own style of parsing.  I've actually never really used preg_replace much, either.  My code is returning an odd error and I have no idea how to fix it.  I'm using codeigniter and the error it returns is below:

 

preg_replace() [function.preg-replace]: Compilation failed: nothing to repeat at offset 6

 

This is the code for my function:

	function bbParse($string){

	$codes = array(
			'/\[b\](*?)\[\/b\]/' => '<b>\\1</b>', //bold tags
			'/\[h2\](*?)\[/h2\]/' => '<h2>\\1</h2>', //h2 tags
			'/\[h3\](*?)[\/h3\]/' => '<h3>\\1</h3>', //h3 tags
			'/\[quote\](*?)\[\/quote\]/' => '<blockquote>\\1</blockquote>', //quote tags using the template's blockquote tag
			'/\[img\](*?)\[/img\]/' => '<img src=\'\\1\' alt=\'Image Not Available\'>', //image tags
			'/\[url\=(*?)\](*?)\[/url\]/' => '<a href=\'\\1\' title=\'\\2\'>\\2</a>', //anchor tags
			'/\[p\](*?)\[/p\]/' => '<p>\\1</p>' //paragraph tags
			);



		$string = preg_replace(array_keys($codes), array_values($codes), $string);

		return $string;


}

[Fadion]

Try:

 

'/\[b\](.+?)\[\/b\]/' => '<b>$1</b>', //bold tags

 

.+? = every character (.), one or more (+), ungreedy (?). The $1 marks the matched characters replace part. Try the same for each key=>value part of your regex and it should work fine.

[ShoeLace1291]

Now it's saying

Compilation failed: missing terminating ] for character class at offset 18