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1.1     ! misho       1: --TEST--
        !             2: Test arsort() function : usage variations - sort hexadecimal values 
        !             3: --FILE--
        !             4: <?php
        !             5: /* Prototype  : bool arsort ( array &$array [, int $asort_flags] )
        !             6:  * Description: Sort an array and maintain index association. 
        !             7:                 Elements will be arranged from highest to lowest when this function has completed.
        !             8:  * Source code: ext/standard/array.c
        !             9: */
        !            10: 
        !            11: /*
        !            12:  * testing arsort() by providing different hexa-decimal array for $array argument with following flag values
        !            13:  * flag value as defualt
        !            14:  * SORT_REGULAR - compare items normally
        !            15:  * SORT_NUMERIC - compare items numerically
        !            16: */
        !            17: 
        !            18: echo "*** Testing arsort() : usage variations ***\n";
        !            19: 
        !            20: // an array contains unsorted hexadecimal values  
        !            21: // There are multiple keys which are duplicate and the later should be picked
        !            22: $unsorted_hex_array = array ( 0x1AB => 0x1AB, 0xFFF => 0xFFF, 0xF => 0xF, 0xFF => 0xFF, 0x2AA => 0x2AA, 0xBB => 0xBB,
        !            23:                               0x1ab => 0x1ab, 0xff => 0xff, -0xff => -0xFF, 0 => 0, -0x2aa => -0x2aa
        !            24:                             );
        !            25: 
        !            26: echo "\n-- Testing arsort() by supplying hexadecimal value array, 'flag' value is defualt  --\n";
        !            27: $temp_array = $unsorted_hex_array;
        !            28: var_dump(arsort($temp_array) ); // expecting : bool(true)
        !            29: var_dump($temp_array);
        !            30: 
        !            31: echo "\n-- Testing arsort() by supplying hexadecimal value array, 'flag' value is SORT_REGULAR  --\n";
        !            32: $temp_array = $unsorted_hex_array;
        !            33: var_dump(arsort($temp_array, SORT_REGULAR) ); // expecting : bool(true)
        !            34: var_dump($temp_array);
        !            35: 
        !            36: echo "\n-- Testing arsort() by supplying hexadecimal value array, 'flag' value is SORT_NUMERIC  --\n";
        !            37: $temp_array = $unsorted_hex_array;
        !            38: var_dump(arsort($temp_array, SORT_NUMERIC) ); // expecting : bool(true)
        !            39: var_dump($temp_array);
        !            40: 
        !            41: echo "Done\n";
        !            42: ?>
        !            43: --EXPECTF--
        !            44: *** Testing arsort() : usage variations ***
        !            45: 
        !            46: -- Testing arsort() by supplying hexadecimal value array, 'flag' value is defualt  --
        !            47: bool(true)
        !            48: array(9) {
        !            49:   [4095]=>
        !            50:   int(4095)
        !            51:   [682]=>
        !            52:   int(682)
        !            53:   [427]=>
        !            54:   int(427)
        !            55:   [255]=>
        !            56:   int(255)
        !            57:   [187]=>
        !            58:   int(187)
        !            59:   [15]=>
        !            60:   int(15)
        !            61:   [0]=>
        !            62:   int(0)
        !            63:   [-255]=>
        !            64:   int(-255)
        !            65:   [-682]=>
        !            66:   int(-682)
        !            67: }
        !            68: 
        !            69: -- Testing arsort() by supplying hexadecimal value array, 'flag' value is SORT_REGULAR  --
        !            70: bool(true)
        !            71: array(9) {
        !            72:   [4095]=>
        !            73:   int(4095)
        !            74:   [682]=>
        !            75:   int(682)
        !            76:   [427]=>
        !            77:   int(427)
        !            78:   [255]=>
        !            79:   int(255)
        !            80:   [187]=>
        !            81:   int(187)
        !            82:   [15]=>
        !            83:   int(15)
        !            84:   [0]=>
        !            85:   int(0)
        !            86:   [-255]=>
        !            87:   int(-255)
        !            88:   [-682]=>
        !            89:   int(-682)
        !            90: }
        !            91: 
        !            92: -- Testing arsort() by supplying hexadecimal value array, 'flag' value is SORT_NUMERIC  --
        !            93: bool(true)
        !            94: array(9) {
        !            95:   [4095]=>
        !            96:   int(4095)
        !            97:   [682]=>
        !            98:   int(682)
        !            99:   [427]=>
        !           100:   int(427)
        !           101:   [255]=>
        !           102:   int(255)
        !           103:   [187]=>
        !           104:   int(187)
        !           105:   [15]=>
        !           106:   int(15)
        !           107:   [0]=>
        !           108:   int(0)
        !           109:   [-255]=>
        !           110:   int(-255)
        !           111:   [-682]=>
        !           112:   int(-682)
        !           113: }
        !           114: Done