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1.1 misho 1: --TEST--
2: Test expm1() function : usage variations - different data types as $arg argument
3: --INI--
4: precision=14
5: --FILE--
6: <?php
7:
8: /* Prototype : float expm1 ( float $arg )
9: * Description: Returns exp(number) - 1, computed in a way that is accurate even
10: * when the value of number is close to zero.
11: * Source code: ext/standard/math.c
12: */
13:
14: echo "*** Testing expm1() : usage variations ***\n";
15:
16: //get an unset variable
17: $unset_var = 10;
18: unset ($unset_var);
19:
20: // heredoc string
21: $heredoc = <<<EOT
22: abc
23: xyz
24: EOT;
25:
26: // get a class
27: class classA
28: {
29: }
30:
31: // get a resource variable
32: $fp = fopen(__FILE__, "r");
33:
34: // unexpected values to be passed to $arg argument
35: $inputs = array(
36: // int data
37: /*1*/ 0,
38: 1,
39: 12345,
40: -2345,
41:
42: // float data
43: /*5*/ 10.5,
44: -10.5,
45: 12.3456789E4,
46: 12.3456789E-4,
47: .5,
48:
49: // null data
50: /*10*/ NULL,
51: null,
52:
53: // boolean data
54: /*12*/ true,
55: false,
56: TRUE,
57: FALSE,
58:
59: // empty data
60: /*16*/ "",
61: '',
62: array(),
63:
64: // string data
65: /*19*/ "abcxyz",
66: 'abcxyz',
67: $heredoc,
68:
69: // array data
70: array(),
71: array(1,2,4),
72:
73: // object data
74: /*24*/ new classA(),
75:
76: // undefined data
77: /*25*/ @$undefined_var,
78:
79: // unset data
80: /*26*/ @$unset_var,
81:
82: // resource variable
83: /*27*/ $fp
84: );
85:
86: // loop through each element of $inputs to check the behaviour of expm1()
87: $iterator = 1;
88: foreach($inputs as $input) {
89: echo "\n-- Iteration $iterator --\n";
90: var_dump(expm1($input));
91: $iterator++;
92: };
93: fclose($fp);
94: ?>
95: ===Done===
96: --EXPECTF--
97: *** Testing expm1() : usage variations ***
98:
99: -- Iteration 1 --
100: float(0)
101:
102: -- Iteration 2 --
103: float(1.718281828459)
104:
105: -- Iteration 3 --
106: float(INF)
107:
108: -- Iteration 4 --
109: float(-1)
110:
111: -- Iteration 5 --
112: float(36314.502674247)
113:
114: -- Iteration 6 --
115: float(-0.99997246355065)
116:
117: -- Iteration 7 --
118: float(INF)
119:
120: -- Iteration 8 --
121: float(0.0012353302826471)
122:
123: -- Iteration 9 --
124: float(0.64872127070013)
125:
126: -- Iteration 10 --
127: float(0)
128:
129: -- Iteration 11 --
130: float(0)
131:
132: -- Iteration 12 --
133: float(1.718281828459)
134:
135: -- Iteration 13 --
136: float(0)
137:
138: -- Iteration 14 --
139: float(1.718281828459)
140:
141: -- Iteration 15 --
142: float(0)
143:
144: -- Iteration 16 --
145:
146: Warning: expm1() expects parameter 1 to be double, string given in %s on line %d
147: NULL
148:
149: -- Iteration 17 --
150:
151: Warning: expm1() expects parameter 1 to be double, string given in %s on line %d
152: NULL
153:
154: -- Iteration 18 --
155:
156: Warning: expm1() expects parameter 1 to be double, array given in %s on line %d
157: NULL
158:
159: -- Iteration 19 --
160:
161: Warning: expm1() expects parameter 1 to be double, string given in %s on line %d
162: NULL
163:
164: -- Iteration 20 --
165:
166: Warning: expm1() expects parameter 1 to be double, string given in %s on line %d
167: NULL
168:
169: -- Iteration 21 --
170:
171: Warning: expm1() expects parameter 1 to be double, string given in %s on line %d
172: NULL
173:
174: -- Iteration 22 --
175:
176: Warning: expm1() expects parameter 1 to be double, array given in %s on line %d
177: NULL
178:
179: -- Iteration 23 --
180:
181: Warning: expm1() expects parameter 1 to be double, array given in %s on line %d
182: NULL
183:
184: -- Iteration 24 --
185:
186: Warning: expm1() expects parameter 1 to be double, object given in %s on line %d
187: NULL
188:
189: -- Iteration 25 --
190: float(0)
191:
192: -- Iteration 26 --
193: float(0)
194:
195: -- Iteration 27 --
196:
197: Warning: expm1() expects parameter 1 to be double, resource given in %s on line %d
198: NULL
199: ===Done===