is_finite

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

is_finiteFinds whether a value is a legal finite number

Description

is_finite(float $num): bool

Checks whether num is a legal finite on this platform.

Parameters

num

The value to check

Return Values

true if num is a legal finite number within the allowed range for a PHP float on this platform, else false.

See Also