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1.1 misho 1: --TEST-- 2: Test uasort() function : basic functionality - duplicate values 3: --FILE-- 4: <?php 5: /* Prototype : bool uasort(array $array_arg, string $cmp_function) 6: * Description: Sort an array with a user-defined comparison function and maintain index association 7: * Source code: ext/standard/array.c 8: */ 9: 10: echo "*** Testing uasort() : basic functionality with duplicate values ***\n"; 11: 12: // comparison function 13: /* Prototype : int cmp(mixed $value1, mixed $value2) 14: * Parameters : $value1 and $value2 - values to be compared 15: * Return value : 0 - if both values are same 16: * 1 - if value1 is greater than value2 17: * -1 - if value1 is less than value2 18: * Description : compares value1 and value2 19: */ 20: function cmp($value1, $value2) 21: { 22: if($value1 == $value2) { 23: return 0; 24: } 25: else if($value1 > $value2) { 26: return 1; 27: } 28: else 29: return -1; 30: } 31: 32: // increasing values 33: $int_values1 = array(1, 1, 2, 2, 3, 3); 34: echo "-- Numeric array with increasing values --\n"; 35: var_dump( uasort($int_values1, 'cmp') ); 36: var_dump($int_values1); 37: 38: // decreasing values 39: $int_values2 = array(3, 3, 2, 2, 1, 1); 40: echo "-- Numeric array with decreasing values --\n"; 41: var_dump( uasort($int_values2, 'cmp') ); 42: var_dump($int_values2); 43: 44: // increasing and decreasing values 45: $int_values3 = array(1, 2, 3, 3, 2, 1); 46: echo "-- Numeric array with increasing and decreasing values --\n"; 47: var_dump( uasort($int_values3, 'cmp') ); 48: var_dump($int_values3); 49: 50: echo "Done" 51: ?> 52: --EXPECTF-- 53: *** Testing uasort() : basic functionality with duplicate values *** 54: -- Numeric array with increasing values -- 55: bool(true) 56: array(6) { 57: [0]=> 58: int(1) 59: [1]=> 60: int(1) 61: [3]=> 62: int(2) 63: [2]=> 64: int(2) 65: [5]=> 66: int(3) 67: [4]=> 68: int(3) 69: } 70: -- Numeric array with decreasing values -- 71: bool(true) 72: array(6) { 73: [4]=> 74: int(1) 75: [5]=> 76: int(1) 77: [3]=> 78: int(2) 79: [2]=> 80: int(2) 81: [1]=> 82: int(3) 83: [0]=> 84: int(3) 85: } 86: -- Numeric array with increasing and decreasing values -- 87: bool(true) 88: array(6) { 89: [5]=> 90: int(1) 91: [0]=> 92: int(1) 93: [1]=> 94: int(2) 95: [4]=> 96: int(2) 97: [2]=> 98: int(3) 99: [3]=> 100: int(3) 101: } 102: Done