Computes the intersection of arrays with additional index check, compares indexes by a callback function array_intersect_key array_intersect_ukey Array Functions PHP Manual array_intersect_uassoc (PHP 5)array_intersect_uassoc — Computes the intersection of arrays with additional index check, compares indexes by a callback function Description array array_intersect_uassoc ( array $array1 , array $array2 [, array $ ... ], callback $key_compare_func ) array_intersect_uassoc() returns an array containing all the values of array1 that are present in all the arguments. Note that the keys are used in the comparison unlike in array_intersect(). The index comparison is done by a user supplied callback function. It must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second. Parameters array1 Initial array for comparision of the arrays. array2 First array to compare keys against. array Variable list of array arguments to compare values against. key_compare_func User supplied callback function to do the comparision. Return Values Returns the values of array1 whose values exist in all of the arguments. Examples Example #1 array_intersect_uassoc() example <?php$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");print_r(array_intersect_uassoc($array1, $array2, "strcasecmp"));?> The above example will output: Array ( [b] => brown ) See Also array_intersect() array_intersect_assoc() array_uintersect_assoc() array_uintersect_uassoc() array_intersect_key() array_intersect_ukey() array_intersect_key array_intersect_ukey Array Functions PHP Manual
