004+
005+ Warning: array_diff_key() expects parameter 2 to be a valid callback, array must have exactly two members in %s/array_diff_key_variation7.php on line 25
006+ NULL
007+
008+ Warning: array_diff_key() expects parameter 2 to be a valid callback, first array member is not a valid class name or object in %s/array_diff_key_variation7.php on line 26
009+ NULL
004- array(1) {
005- [10]=>
006- string(2) "10"
007- }
008- array(0) {
009- }
012+
013+ Warning: array_diff_key() expects parameter 2 to be a valid callback, array must have exactly two members in %s/array_diff_key_variation7.php on line 25
014+ NULL
015+
016+ Warning: array_diff_key() expects parameter 2 to be a valid callback, first array member is not a valid class name or object in %s/array_diff_key_variation7.php on line 26
017+ NULL
012- array(1) {
013- [10]=>
014- string(2) "10"
015- }
016- array(0) {
017- }
020+
021+ Warning: array_diff_key() expects parameter 2 to be a valid callback, array must have exactly two members in %s/array_diff_key_variation7.php on line 25
022+ NULL
023+
024+ Warning: array_diff_key() expects parameter 2 to be a valid callback, first array member is not a valid class name or object in %s/array_diff_key_variation7.php on line 26
025+ NULL
020- array(1) {
021- [10]=>
022- string(2) "10"
023- }
024- array(0) {
025- }