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1.1 misho 1: --TEST-- 2: Test round() function : usage variations - different data types as $val argument 3: --INI-- 4: precision=14 5: --FILE-- 6: <?php 7: /* Prototype : float round ( float $val [, int $precision ] ) 8: * Description: Returns the rounded value of val to specified precision (number of digits 9: * after the decimal point) 10: * Source code: ext/standard/math.c 11: */ 12: 13: echo "*** Testing round() : usage variations ***\n"; 14: 15: //get an unset variable 16: $unset_var = 10; 17: unset ($unset_var); 18: 19: // heredoc string 20: $heredoc = <<<EOT 21: abc 22: xyz 23: EOT; 24: 25: // get a class 26: class classA 27: { 28: } 29: 30: // get a resource variable 31: $fp = fopen(__FILE__, "r"); 32: 33: $inputs = array( 34: // int data 35: /*1*/ 0, 36: 1, 37: 12345, 38: -2345, 39: 2147483647, 40: 41: // float data 42: /*6*/ 10.5, 43: -10.5, 44: 12.3456789000e10, 45: 12.3456789000E-10, 46: .5, 47: 48: // null data 49: /*11*/ NULL, 50: null, 51: 52: // boolean data 53: /*13*/ true, 54: false, 55: TRUE, 56: FALSE, 57: 58: // empty data 59: /*17*/ "", 60: '', 61: array(), 62: 63: // string data 64: /*20*/ "abcxyz", 65: 'abcxyz', 66: $heredoc, 67: 68: // object data 69: /*23*/ new classA(), 70: 71: // undefined data 72: /*24*/ @$undefined_var, 73: 74: // unset data 75: /*25*/ @$unset_var, 76: 77: // resource variable 78: /*26*/ $fp 79: ); 80: 81: // loop through each element of $inputs to check the behaviour of round() 82: $iterator = 1; 83: foreach($inputs as $input) { 84: echo "\n-- Iteration $iterator --\n"; 85: var_dump(round($input, 14)); 86: $iterator++; 87: }; 88: fclose($fp); 89: ?> 90: ===Done=== 91: --EXPECTF-- 92: *** Testing round() : usage variations *** 93: 94: -- Iteration 1 -- 95: float(0) 96: 97: -- Iteration 2 -- 98: float(1) 99: 100: -- Iteration 3 -- 101: float(12345) 102: 103: -- Iteration 4 -- 104: float(-2345) 105: 106: -- Iteration 5 -- 107: float(2147483647) 108: 109: -- Iteration 6 -- 110: float(10.5) 111: 112: -- Iteration 7 -- 113: float(-10.5) 114: 115: -- Iteration 8 -- 116: float(123456789000) 117: 118: -- Iteration 9 -- 119: float(1.23457E-9) 120: 121: -- Iteration 10 -- 122: float(0.5) 123: 124: -- Iteration 11 -- 125: float(0) 126: 127: -- Iteration 12 -- 128: float(0) 129: 130: -- Iteration 13 -- 131: float(1) 132: 133: -- Iteration 14 -- 134: float(0) 135: 136: -- Iteration 15 -- 137: float(1) 138: 139: -- Iteration 16 -- 140: float(0) 141: 142: -- Iteration 17 -- 143: float(0) 144: 145: -- Iteration 18 -- 146: float(0) 147: 148: -- Iteration 19 -- 149: bool(false) 150: 151: -- Iteration 20 -- 152: float(0) 153: 154: -- Iteration 21 -- 155: float(0) 156: 157: -- Iteration 22 -- 158: float(0) 159: 160: -- Iteration 23 -- 161: 162: Notice: Object of class classA could not be converted to int in %s on line %d 163: float(1) 164: 165: -- Iteration 24 -- 166: float(0) 167: 168: -- Iteration 25 -- 169: float(0) 170: 171: -- Iteration 26 -- 172: float(%f) 173: ===Done===