array_intersect_uassoc Computes the intersection of arrays with additional index check, compares indexes by a callback function &reftitle.description; arrayarray_intersect_uassoc arrayarray1 arrayarray2 array ... callbackkey_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. &reftitle.parameters; array1 Initial array for comparison 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 comparison. &reftitle.returnvalues; Returns the values of array1 whose values exist in all of the arguments. &reftitle.examples; "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red"); print_r(array_intersect_uassoc($array1, $array2, "strcasecmp")); ?> ]]> &example.outputs; brown ) ]]> &reftitle.seealso; array_intersect array_intersect_assoc array_uintersect_assoc array_uintersect_uassoc array_intersect_key array_intersect_ukey