--TEST--
Test sort() function : object functionality - sorting objects, 'sort_flags' as default/SORT_REGULAR
--FILE--
<?php
// class declaration for integer objects
class for_integer_sort
{
    public $class_value;
    // initializing object member value
    function __construct($value)
    {
        $this->class_value = $value;
    }
}
// class declaration for string objects
class for_string_sort
{
    public $class_value;
    // initializing object member value
    function __construct($value)
    {
        $this->class_value = $value;
    }
    // return string value
    function __tostring(): string {
        return (string) $this->value;
    }
}
function main()
{
    /*
     * testing sort() by providing integer/string object arrays with flag values are default, SORT_REGULAR
    */
    echo "*** Testing sort() : object functionality ***\n";
    // array of integer objects
    $unsorted_int_obj = array(new for_integer_sort(11), new for_integer_sort(66), new for_integer_sort(23), new for_integer_sort(-5), new for_integer_sort(0.001), new for_integer_sort(0));
    // array of string objects
    $unsorted_str_obj = array(new for_string_sort("axx"), new for_string_sort("t"), new for_string_sort("w"), new for_string_sort("py"), new for_string_sort("apple"), new for_string_sort("Orange"), new for_string_sort("Lemon"), new for_string_sort("aPPle"));
    echo "\n-- Testing sort() by supplying various object arrays, 'flag' value is default --\n";
    // testing sort() function by supplying integer object array, flag value is default
    $temp_array = $unsorted_int_obj;
    var_dump(sort($temp_array));
    var_dump($temp_array);
    // testing sort() function by supplying string object array, flag value is default
    $temp_array = $unsorted_str_obj;
    var_dump(sort($temp_array));
    var_dump($temp_array);
    echo "\n-- Testing sort() by supplying various object arrays, 'flag' value is SORT_REGULAR --\n";
    // testing sort() function by supplying integer object array, flag value = SORT_REGULAR
    $temp_array = $unsorted_int_obj;
    var_dump(sort($temp_array, SORT_REGULAR));
    var_dump($temp_array);
    // testing sort() function by supplying string object array, flag value = SORT_REGULAR
    $temp_array = $unsorted_str_obj;
    var_dump(sort($temp_array, SORT_REGULAR));
    var_dump($temp_array);
    echo "Done\n";
}
?>
--EXPECTF--
*** Testing sort() : object functionality ***

-- Testing sort() by supplying various object arrays, 'flag' value is default --
bool(true)
array(6) {
  [0]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(-5)
  }
  [1]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(0)
  }
  [2]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    float(0.001)
  }
  [3]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(11)
  }
  [4]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(23)
  }
  [5]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(66)
  }
}
bool(true)
array(8) {
  [0]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "Lemon"
  }
  [1]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(6) "Orange"
  }
  [2]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "aPPle"
  }
  [3]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "apple"
  }
  [4]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(3) "axx"
  }
  [5]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(2) "py"
  }
  [6]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(1) "t"
  }
  [7]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(1) "w"
  }
}

-- Testing sort() by supplying various object arrays, 'flag' value is SORT_REGULAR --
bool(true)
array(6) {
  [0]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(-5)
  }
  [1]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(0)
  }
  [2]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    float(0.001)
  }
  [3]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(11)
  }
  [4]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(23)
  }
  [5]=>
  object(for_integer_sort)#%d (1) {
    ["class_value"]=>
    int(66)
  }
}
bool(true)
array(8) {
  [0]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "Lemon"
  }
  [1]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(6) "Orange"
  }
  [2]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "aPPle"
  }
  [3]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(5) "apple"
  }
  [4]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(3) "axx"
  }
  [5]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(2) "py"
  }
  [6]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(1) "t"
  }
  [7]=>
  object(for_string_sort)#%d (1) {
    ["class_value"]=>
    string(1) "w"
  }
}
Done