--TEST--
Testing floatval() and its alias doubleval() Functions
--FILE--
<?php
/* Prototype: float floatval( mixed $var );
* Description: Returns the float value of var.
*/
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);
$dfp = opendir ( dirname(__FILE__) );
closedir($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 "\n*** Testing error conditions ***\n";
//Zero argument
var_dump( floatval() );
var_dump( doubleval() );
//arguments more than expected
var_dump( floatval(TRUE, FALSE) );
var_dump( doubleval(TRUE, FALSE) );
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 ***
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)
*** Testing error conditions ***
Warning: Wrong parameter count for floatval() in %s on line %d
NULL
Warning: Wrong parameter count for doubleval() in %s on line %d
NULL
Warning: Wrong parameter count for floatval() in %s on line %d
NULL
Warning: Wrong parameter count for doubleval() in %s on line %d
NULL
Done