PHP: is_float() function
Description
The is_float () function is used to find whether a variable is a float or not.
Version:
(PHP 4 and above)
Syntax:
is_float (var_name)
Parameter:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| var_name | The variable being checked | Required | Mixed* |
*Mixed: Mixed indicates that a parameter may accept multiple (but not necessarily all) types.
Return value:
TRUE if var_name is a float, FALSE otherwise.
Value Type: Boolean.
Example:
<?php
$var_name=127.55;
if (is_float($var_name))
echo 'This is a float value.<br>';
else
echo 'This is a float value.<br>';
var_dump(is_float('w3resource'));
echo '<br>';
var_dump(is_float(85));
echo '<br>';
var_dump(is_float(1e8));
echo '<br>';
var_dump(is_float(true));
echo '<br>';
var_dump(is_float(array(23.3, 56, 6)));
?>
Output:
This is a float value. bool(false) bool(false) bool(true) bool(false) bool(false)
View the example in the browser
Practice here online :
See also