is_infinite() function in PHP

The is_infinite() function checks if the value is infinite. If num is an infinite number, it returns true; otherwise, it returns false.

Syntax

is_infinite(num)

Parameter

• num-The number to be checked.

Return

If num is an infinite number, the is_infinite() function returns true; otherwise, it returns false.

Example

<?php
　　　echo is_infinite(1);
?>

Example

<?php
　　　echo is_infinite(log(0));
?>

Output Result

1