PHP: is_real() function
Description
The is_real() function is used to find whether a variable is a float or not. The function is an alias of is_float().
Version:
(PHP 4 and above)
Syntax:
is_real(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 real, FALSE otherwise.
Value Type: Boolean
Example:
<?php
$var_name=127.55;
if (is_real($var_name))
echo 'This is a real value.<br>';
else
echo 'This is not a real value.<br>';
var_dump(is_real('w3resource'));
echo '<br>';
var_dump(is_real(85));
echo '<br>';
var_dump(is_real(1e8));
echo '<br>';
var_dump(is_real(true));
echo '<br>';
var_dump(is_real(array(23.3, 56, 6)));
?>
Output:
This is a real value. bool(false) bool(false) bool(true) bool(false) bool(false)
View the example in the browser
Practice here online :
See also
Previous: is_object
Next: is_resource
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https://www.w3resource.com/php/function-reference/is_real.php
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