is_finite() function in PHP

The is_finite() function checks if the value is finite. If num is a finite number, it returns true, otherwise it returns false.

Syntax

is_finite(num)

Parameter

• num-The number to be checked.

Return

If num is a finite number, the is_finite() function returns true, otherwise it returns false.

Example

<?php
　　　echo is_finite(1);
?>

Output Result

1

Let's look at another example-

Example

<?php
　　　echo is_finite(log(0));
?>

Output Result