note 88281 deleted from function.array-key-exists by crell

Note Submitter: John ---- Here is a little function for case sensitivity to elaborate on what was said by MarkL from ##php (Freenode) and mmanning at mdanderson dot org from this page: <?php // Case sensitive version of array_key_exists() using preg_match() function array_ikey_exists($key,$arr) { if(preg_match("/".$key."/i", join(",", array_keys($arr)))) return true; else return false; } ?> Not that anyone else couldn't have written this, but a concept like this strengthens reusability. :) Also, I've been running into issues with escaping for Regex, so I decided to give something like this a shot: <?php function array_ikey_exists($key,$arr) { $e = 0; //$key = addslashes($key); if(is_array($arr) && $arr !==array()) { foreach($arr as $k => $v) { if(strtolower($k) == strtolower($key)) $e++; } if($e>0) return true; else return false; } else return false; } ?> You could addslashes() to escape; it's just another approach.