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PHP is_finite() Function

PHP Math Reference

Complete PHP Math Reference

Definition and Usage

The is_finite() function returns true if the specified value is a finite number, otherwise it returns nothing.

The value is finite if it is within the allowed range for a PHP float on this platform.

Syntax

is_finite(x)

Parameter	Description
x	Required. The value to check

Example

<?php
echo is_finite(2) . "<br />";
echo is_finite(log(0)) . "<br />";
echo is_finite(2000);
?>

The output of the code above will be:

1

1

PHP Math Reference

Complete PHP Math Reference

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