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--TEST-- Test shuffle() function : usage variation - with MultiDimensional array --FILE-- <?php /* Prototype : bool shuffle(array $array_arg) * Description: Randomly shuffle the contents of an array * Source code: ext/standard/array.c */ /* * Test behaviour of shuffle() function when multi-dimensional array is * passed to 'array_arg' argument */ echo "*** Testing shuffle() : with multi-dimensional array ***\n"; // initialise the multi-dimensional array $array_arg = array( array(1, 2, 3), array(4, 5, 6), array(7, 8, 9), array(10000, 20000000, 30000000), array(0, 0, 0), array(012, 023, 034), array(0x1, 0x0, 0xa) ); // calling shuffle() function with multi-dimensional array var_dump( shuffle($array_arg) ); echo "\nThe output array is:\n"; var_dump( $array_arg ); // looping to test shuffle() with each sub-array in the multi-dimensional array echo "\n*** Testing shuffle() with arrays having different types of values ***\n"; $counter = 1; for($i=0; $i<=6; $i++) { echo "\n-- Iteration $counter --\n"; var_dump( shuffle($array_arg[$i]) ); echo "\nThe output array is:\n"; var_dump( $array_arg[$i] ); $counter++; } echo "Done"; ?> --EXPECTF-- *** Testing shuffle() : with multi-dimensional array *** bool(true) The output array is: array(7) { [0]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [1]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [2]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [3]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [4]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [5]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } [6]=> array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } } *** Testing shuffle() with arrays having different types of values *** -- Iteration 1 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 2 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 3 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 4 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 5 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 6 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } -- Iteration 7 -- bool(true) The output array is: array(3) { [0]=> int(%d) [1]=> int(%d) [2]=> int(%d) } Done