PHP Tutorial - PHP is_infinite() Function
Definition
The is_infinite() function checks whether a value is infinite or not.
Syntax
PHP is_infinite() Function has the following syntax.
is_infinite(value);Parameter
| Parameter | Is Required | Description |
|---|---|---|
| value | Required. | Value to check |
Return
| Item | Description |
|---|---|
| Return Value | TRUE if value is an infinite number, FALSE otherwise |
| Return Type | Boolean |
This function returns true (1) if the specified value is an infinite number which is outside the allowed range for a PHP float on this platform, otherwise it returns false/nothing.
Example
Check whether a value is infinite or not:
<?php
echo is_infinite(2) . "\n";
echo is_infinite(log(0)) . "\n";
echo is_infinite(2000);
?>
The code above generates the following result.
