--TEST--
Test rsort() function : usage variations - multi-dimensional arrays
--FILE--
<?php
/*
 * Pass rsort() multi-dimensional arrays to test behaviour
 */

echo "*** Testing rsort() : variation ***\n";

// array of arrays
$various_arrays = array (
  // null array
  array(),

  // array contains null sub array
  array( array() ),

  // array of arrays along with some values
  array(44, 11, array(64, 61) ),

  // array containing sub arrays
  array(array(33, -5, 6), array(11), array(22, -55), array() )
);


$count = 1;

// loop through to test rsort() with different arrays
foreach ($various_arrays as $array) {

  echo "\n-- Iteration $count --\n";

  echo "\n-- 'flag' value is default --\n";
  $temp_array = $array;
  var_dump(rsort($temp_array) );
  var_dump($temp_array);

  echo "\n-- 'flag' value is SORT_REGULAR --\n";
  $temp_array = $array;
  var_dump(rsort($temp_array, SORT_REGULAR) );
  var_dump($temp_array);
  $count++;
}

echo "Done";
?>
--EXPECT--
*** Testing rsort() : variation ***

-- Iteration 1 --

-- 'flag' value is default --
bool(true)
array(0) {
}

-- 'flag' value is SORT_REGULAR --
bool(true)
array(0) {
}

-- Iteration 2 --

-- 'flag' value is default --
bool(true)
array(1) {
  [0]=>
  array(0) {
  }
}

-- 'flag' value is SORT_REGULAR --
bool(true)
array(1) {
  [0]=>
  array(0) {
  }
}

-- Iteration 3 --

-- 'flag' value is default --
bool(true)
array(3) {
  [0]=>
  array(2) {
    [0]=>
    int(64)
    [1]=>
    int(61)
  }
  [1]=>
  int(44)
  [2]=>
  int(11)
}

-- 'flag' value is SORT_REGULAR --
bool(true)
array(3) {
  [0]=>
  array(2) {
    [0]=>
    int(64)
    [1]=>
    int(61)
  }
  [1]=>
  int(44)
  [2]=>
  int(11)
}

-- Iteration 4 --

-- 'flag' value is default --
bool(true)
array(4) {
  [0]=>
  array(3) {
    [0]=>
    int(33)
    [1]=>
    int(-5)
    [2]=>
    int(6)
  }
  [1]=>
  array(2) {
    [0]=>
    int(22)
    [1]=>
    int(-55)
  }
  [2]=>
  array(1) {
    [0]=>
    int(11)
  }
  [3]=>
  array(0) {
  }
}

-- 'flag' value is SORT_REGULAR --
bool(true)
array(4) {
  [0]=>
  array(3) {
    [0]=>
    int(33)
    [1]=>
    int(-5)
    [2]=>
    int(6)
  }
  [1]=>
  array(2) {
    [0]=>
    int(22)
    [1]=>
    int(-55)
  }
  [2]=>
  array(1) {
    [0]=>
    int(11)
  }
  [3]=>
  array(0) {
  }
}
Done