Re: array intersection problem

> $invalid = array("1","3","9"); > $questions = > array("1","2","3","4","5","6","7","8","9"); > > $new_questions = array("<font color=red>1</font>", > "2", > "<font color=red>3</font>", > "4","5","6","7","8", > "<font color=red>4</font>"); There's no one-line built-in array_xxx function to do that, AFAIK. This isn't Lisp, after all :-) reset($questions); while (list($index, $qid) = each($questions)){ if (in_array($qid, $invalid)){ $new_questions[$index] = "<font color=red>$qid</font>"; } else{ $new_questions[$index] = $qid; } } -- WARNING richard@zend.com address is an endangered species -- Use ceo@l-i-e.com Wanna help me out? Like Music? Buy a CD: http://l-i-e.com/artists.htm Volunteer a little time: http://chatmusic.com/volunteer.htm