note 29808 modified in function.array-diff by vrana

<?php function array_key_diff($ar1, $ar2) { // , $ar3, $ar4, ... // returns copy of array $ar1 with those entries removed // whose keys appear as keys in any of the other function args $aSubtrahends = array_slice(func_get_args(),1); foreach ($ar1 as $key => $val) foreach ($aSubtrahends as $aSubtrahend) if (array_key_exists($key, $aSubtrahend)) unset ($ar1[$key]); return $ar1; } $a = array("c" => "catty", "b" => "batty", "a" => "aunty", 5 => 4, 2.9 => 7, 11, "n" => "nutty"); $b = array(9, "d" => "ditty", "b" => "bratty", "a" => null, 10, 13); $c = array_key_diff ($a, $b, array(5 => 6)); ?> $c is then equivalent to array('c' => 'catty', 6 => 11, 'n' => 'nutty') Csaba Gabor from New York --was-- function array_key_diff($ar1, $ar2) { // , $ar3, $ar4, ... // returns copy of array $ar1 with those entries removed // whose keys appear as keys in any of the other function args $aSubtrahends = array_slice(func_get_args(),1); foreach ($ar1 as $key => $val) foreach ($aSubtrahends as $aSubtrahend) if (array_key_exists($key, $aSubtrahend)) unset ($ar1[$key]); return $ar1; } $a = array("c" => "catty", "b" => "batty", "a" => "aunty", 5 => 4, 2.9 => 7, 11, "n" => "nutty"); $b = array(9, "d" => "ditty", "b" => "bratty", "a" => null, 10, 13); $c = array_key_diff ($a, $b, array(5 => 6)); $c is then equivalent to array('c' => 'catty', 6 => 11, 'n' => 'nutty') Csaba Gabor from New York http://php.net/manual/en/function.array-diff.php