Replace

Jag har följande kod:

	  $member_prefix = "forum_";  //You can change the member prefix to what ever you like.
        $the_query = str_replace("ibf_members", $member_prefix."members", $the_query);
        $the_query = str_replace("ibf_members", $member_prefix."messages", $the_query);
        $the_query = str_replace("ibf_members", $member_prefix."sessions", $the_query);
        $the_query = str_replace("ibf_members", $member_prefix."member_extra", $the_query);

        if ($this->obj['sql_tbl_prefix'] != "ibf_")
        {
           $the_query = preg_replace("/ibf_(\S+?)([\s\.,]|$)/", $this->obj['sql_tbl_prefix']."\\1\\2", $the_query);
        }

Men det är bara
$the_query = str_replace("ibf_members", $member_prefix."members", $the_query);
Som ersätts
Hur gör man för att alla raderna ska gås igenom?