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- --TEST--
- Testing floatval() and its alias doubleval() Functions
- --FILE--
- <?php
- echo "*** Testing floatval() with valid float values ***\n";
- // different valid float values
- $valid_floats = array(
- 0.0,
- 1.0,
- -1.0,
- 1.234,
- -1.234,
- 1.2e3,
- -1.2e3,
- 10.0000000000000000005,
- 10.5e+5,
- 1e5,
- -1e5,
- 1e-5,
- -1e-1,
- 1e+5,
- -1e+5,
- 1E5,
- -1E5,
- 1E+5,
- -1E+5,
- .5e+7,
- -.5e+7
- );
- /* loop to check that floatval() recognizes different
- float values, expected output:float value for valid floating point number */
- foreach ($valid_floats as $value ) {
- var_dump( floatval($value) );
- }
- echo "\n*** Testing doubleval() with valid float values ***\n";
- /* loop to check that doubleval() also recognizes different
- float values, expected output:float value for valid floating point number */
- foreach ($valid_floats as $value ) {
- var_dump( doubleval($value) );
- }
- echo "\n*** Testing floatval() on non floating types ***\n";
- // get a resource type variable
- $fp = fopen (__FILE__, "r");
- fclose($fp);
- $dfp = opendir ( __DIR__ );
- closedir($dfp);
- // other types in an array
- $not_float_types = array (
- -2147483648, // max negative integer value
- 2147483648, // max positive integer value
- $fp, // resource
- $dfp,
- "0.0", // string
- "1.0",
- "-1.3e3",
- "bob-1.3e3",
- "10 Some dollars",
- "10.2 Some Dollars",
- "10.0 dollar" + 1,
- "10.0 dollar" + 1.0,
- "",
- true,
- NULL,
- null,
- );
- /* loop through the $not_float_types to see working of
- floatval() on non float types, expected output: float value valid floating point numbers */
- foreach ($not_float_types as $type ) {
- var_dump( floatval($type) );
- }
- echo "\n*** Testing doubleval() on non floating types ***\n";
- /* loop through the $not_float_types to see working of
- doubleval() on non float types, expected output: float value valid floating point numbers */
- foreach ($not_float_types as $type ) {
- var_dump( doubleval($type) );
- }
- echo "\nDone\n";
- ?>
- --EXPECTF--
- *** Testing floatval() with valid float values ***
- float(0)
- float(1)
- float(-1)
- float(1.234)
- float(-1.234)
- float(1200)
- float(-1200)
- float(10)
- float(1050000)
- float(100000)
- float(-100000)
- float(1.0E-5)
- float(-0.1)
- float(100000)
- float(-100000)
- float(100000)
- float(-100000)
- float(100000)
- float(-100000)
- float(5000000)
- float(-5000000)
- *** Testing doubleval() with valid float values ***
- float(0)
- float(1)
- float(-1)
- float(1.234)
- float(-1.234)
- float(1200)
- float(-1200)
- float(10)
- float(1050000)
- float(100000)
- float(-100000)
- float(1.0E-5)
- float(-0.1)
- float(100000)
- float(-100000)
- float(100000)
- float(-100000)
- float(100000)
- float(-100000)
- float(5000000)
- float(-5000000)
- *** Testing floatval() on non floating types ***
- Warning: A non-numeric value encountered in %s on line %d
- Warning: A non-numeric value encountered in %s on line %d
- float(-2147483648)
- float(2147483648)
- float(5)
- float(6)
- float(0)
- float(1)
- float(-1300)
- float(0)
- float(10)
- float(10.2)
- float(11)
- float(11)
- float(0)
- float(1)
- float(0)
- float(0)
- *** Testing doubleval() on non floating types ***
- float(-2147483648)
- float(2147483648)
- float(5)
- float(6)
- float(0)
- float(1)
- float(-1300)
- float(0)
- float(10)
- float(10.2)
- float(11)
- float(11)
- float(0)
- float(1)
- float(0)
- float(0)
- Done
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