array_uintersect Computes the intersection of arrays, compares data by a callback function &reftitle.description; arrayarray_uintersect arrayarray1 arrayarray2 array ... callbackdata_compare_func Computes the intersection of arrays, compares data by a callback function. &reftitle.parameters; array1 The first array. array2 The second array. data_compare_func The callback comparison function. The user supplied callback function is used for comparison. 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. &reftitle.returnvalues; Returns an array containing all the values of array1 that are present in all the arguments. &reftitle.examples; "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red"); print_r(array_uintersect($array1, $array2, "strcasecmp")); ?> ]]> &example.outputs; green [b] => brown [0] => red ) ]]> &reftitle.seealso; array_intersect array_intersect_assoc array_uintersect_assoc array_uintersect_uassoc