preg_replace

[cpradio]

// Parse all blogCode used in this comment/blog
// $contents = preg_replace("/\\[b\\](.?*)\\[\\/b]\\]/is","<b>$1</b>",$contents);
function ParseCode($text = "Invalid use of Function",$abCode = 1) {
    if ($abCode) {
        $query = mysql_query("select * from abCode");
        for ($i = 0; $i < mysql_numrows($query); $i++) {
            $abOpenTag = mysql_result($query,$i,"abOpenTag");
            $abCloseTag = mysql_result($query,$i,"abCloseTag");
            $htmlOpenTag = mysql_result($query,$i,"htmlOpenTag");
            $htmlCloseTag = mysql_result($query,$i,"htmlCloseTag");
            $text = preg_replace("/".addslashes($abOpenTag)."(.?*)".addslahses($abCloseTag)."/is","$htmlOpenTag$1$htmlCloseTag",$text);
        }
        return $text;
    }
} 

This is my first experiment with preg_replace and I want to know if this will give me the desired effect if...
  $abOpenTag has the value of "[ b ]" (without the spaces inbetween)
  $abCloseTag has the value of "[ /b ]" (without the spaces inbetween)
&nbsp;&nbsp;$htmlOpenTag has the value of "<b>"
&nbsp;&nbsp;$htmlCloseTag has the value of "</b>"

Will that work, or do I need to change a few things? I tried installing IIS yesterday but had all kinds on my laptop (i think its too slow ) but if anyone could help me here, I would appreciate it.