--TEST--
Test usort() function : usage variations - diff. array values
--FILE--
<?php
function cmp_function($value1, $value2)
{
    if ($value1 == $value2) {
        return 0;
    } else if ($value1 > $value2) {
        return -1;
    } else {
        return 1;
    }
}
function main()
{
    /*
     * Pass an array with different data types as keys to usort() to test how it is re-ordered
     */
    echo "*** Testing usort() : usage variation ***\n";
    // different heredoc strings
    // single line heredoc string
    $simple_heredoc = <<<EOT2
    simple
    EOT2;
    // multiline heredoc string
    $multiline_heredoc = <<<EOT3
    multiline heredoc with 123
    and speci@! ch@r..
    check\talso
    EOT3;
    $array_arg = array(
        // numeric keys
        -2 => 9,
        8 => 8,
        012 => 7,
        0x34 => 6,
        // string keys
        'key' => 5,
        //single quoted key
        "two" => 4,
        //double quoted key
        " " => 0,
        // space as key
        // bool keys
        TRUE => 100,
        FALSE => 25,
        // null keys
        NULL => 35,
        // binary key
        "a" . chr(0) . "b" => 45,
        "binary" => 30,
        //heredoc keys
        $simple_heredoc => 75,
        $multiline_heredoc => 200,
        // default key
        1,
    );
    var_dump(usort($array_arg, 'cmp_function'));
    echo "\n-- Sorted array after usort() function call --\n";
    var_dump($array_arg);
}
?>
--EXPECT--
*** Testing usort() : usage variation ***
bool(true)

-- Sorted array after usort() function call --
array(15) {
  [0]=>
  int(200)
  [1]=>
  int(100)
  [2]=>
  int(75)
  [3]=>
  int(45)
  [4]=>
  int(35)
  [5]=>
  int(30)
  [6]=>
  int(25)
  [7]=>
  int(9)
  [8]=>
  int(8)
  [9]=>
  int(7)
  [10]=>
  int(6)
  [11]=>
  int(5)
  [12]=>
  int(4)
  [13]=>
  int(1)
  [14]=>
  int(0)
}