1--TEST--
2Testing floatval() and its alias doubleval() Functions
3--FILE--
4<?php
5/* Prototype: float floatval( mixed $var );
6 * Description: Returns the float value of var.
7 */
8
9echo "*** Testing floatval() with valid float values ***\n";
10// different valid  float values
11$valid_floats = array(
12                0.0,
13                1.0,
14                -1.0,
15                1.234,
16 	        -1.234,
17                1.2e3,
18	        -1.2e3,
19		10.0000000000000000005,
20		10.5e+5,
21                1e5,
22	        -1e5,
23                1e-5,
24		-1e-1,
25		1e+5,
26		-1e+5,
27		1E5,
28		-1E5,
29		1E+5,
30		-1E+5,
31		.5e+7,
32		-.5e+7
33);
34
35/* loop to check that floatval() recognizes different
36   float values, expected output:float value for valid floating point number */
37
38foreach ($valid_floats as $value ) {
39   var_dump( floatval($value) );
40}
41
42
43echo "\n*** Testing doubleval() with valid float values ***\n";
44/* loop to check that doubleval() also recognizes different
45   float values, expected output:float value for valid floating point number */
46
47foreach ($valid_floats as $value ) {
48   var_dump( doubleval($value) );
49}
50
51
52echo "\n*** Testing floatval() on non floating types ***\n";
53
54// get a resource type variable
55$fp = fopen (__FILE__, "r");
56fclose($fp);
57$dfp = opendir ( dirname(__FILE__) );
58closedir($dfp);
59
60// other types in an array
61$not_float_types = array (
62                   -2147483648, // max negative integer value
63                   2147483648,  // max positive integer value
64                   $fp,  // resource
65                   $dfp,
66                   "0.0", // string
67                   "1.0",
68	           "-1.3e3",
69		   "bob-1.3e3",
70                   "10 Some dollars",
71	           "10.2 Some Dollars",
72	       	   "10.0 dollar" + 1,
73		   "10.0 dollar" + 1.0,
74                   "",
75                   true,
76                   NULL,
77                   null,
78                 );
79/* loop through the $not_float_types to see working of
80   floatval() on non float types, expected output: float value valid floating point numbers */
81foreach ($not_float_types as $type ) {
82   var_dump( floatval($type) );
83}
84
85
86echo "\n*** Testing doubleval() on non floating types ***\n";
87
88/* loop through the $not_float_types to see working of
89   doubleval() on non float types, expected output: float value valid floating point numbers */
90foreach ($not_float_types as $type ) {
91   var_dump( doubleval($type) );
92}
93
94
95
96
97echo "\n*** Testing error conditions ***\n";
98//Zero argument
99var_dump( floatval() );
100var_dump( doubleval() );
101
102//arguments more than expected
103var_dump( floatval(TRUE, FALSE) );
104var_dump( doubleval(TRUE, FALSE) );
105
106echo "\nDone\n";
107
108
109?>
110--EXPECTF--
111*** Testing floatval() with valid float values ***
112float(0)
113float(1)
114float(-1)
115float(1.234)
116float(-1.234)
117float(1200)
118float(-1200)
119float(10)
120float(1050000)
121float(100000)
122float(-100000)
123float(1.0E-5)
124float(-0.1)
125float(100000)
126float(-100000)
127float(100000)
128float(-100000)
129float(100000)
130float(-100000)
131float(5000000)
132float(-5000000)
133
134*** Testing doubleval() with valid float values ***
135float(0)
136float(1)
137float(-1)
138float(1.234)
139float(-1.234)
140float(1200)
141float(-1200)
142float(10)
143float(1050000)
144float(100000)
145float(-100000)
146float(1.0E-5)
147float(-0.1)
148float(100000)
149float(-100000)
150float(100000)
151float(-100000)
152float(100000)
153float(-100000)
154float(5000000)
155float(-5000000)
156
157*** Testing floatval() on non floating types ***
158float(-2147483648)
159float(2147483648)
160float(5)
161float(6)
162float(0)
163float(1)
164float(-1300)
165float(0)
166float(10)
167float(10.2)
168float(11)
169float(11)
170float(0)
171float(1)
172float(0)
173float(0)
174
175*** Testing doubleval() on non floating types ***
176float(-2147483648)
177float(2147483648)
178float(5)
179float(6)
180float(0)
181float(1)
182float(-1300)
183float(0)
184float(10)
185float(10.2)
186float(11)
187float(11)
188float(0)
189float(1)
190float(0)
191float(0)
192
193*** Testing error conditions ***
194
195Warning: floatval() expects exactly 1 parameter, 0 given in %s on line %d
196NULL
197
198Warning: doubleval() expects exactly 1 parameter, 0 given in %s on line %d
199NULL
200
201Warning: floatval() expects exactly 1 parameter, 2 given in %s on line %d
202NULL
203
204Warning: doubleval() expects exactly 1 parameter, 2 given in %s on line %d
205NULL
206
207Done
208