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1.1 misho 1: --TEST-- 2: Test array_diff when non-array is passed 3: --FILE-- 4: <?php 5: //-=-=-=-=- 6: $a = array(); 7: $b = 3; 8: $c = array(5); 9: array_diff($a, $b, $c); 10: //-=-=-=-=-=- 11: echo "OK!"; 12: ?> 13: --EXPECTF-- 14: Warning: array_diff(): Argument #2 is not an array in %s 15: OK!