note 31525 added to function.array-key-exists

for the note above: if functions do not exist in elder PHP versions, you might rather use the function 'function_exists()' to create a transparent equivalent: if ( ! function_exists ( 'array_key_exists' ) ) { function array_key_exists () { // etcetera } } the same applies for all kinds of functions like 'file_contents', 'is_a', etc... useful functions which are implemented only in later versions. To be back- and forward compatible i'd like to suggest you use constructions like this, and keep your code portable and transparent :) -- http://www.php.net/manual/en/function.array-key-exists.php http://master.php.net/manage/user-notes.php?action=edit+31525 http://master.php.net/manage/user-notes.php?action=delete+31525 http://master.php.net/manage/user-notes.php?action=reject+31525