is_finite

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

is_finite ¡ª Finds whether a value is a legal finite number

Description

Checks whether val is a legal finite on this platform.

Parameters

val

The value to check

Return Values

TRUE if val is a legal finite number within the allowed range for a PHP float on this platform, else FALSE.

See Also

• is_infinite() - Finds whether a value is infinite

• is_nan() - Finds whether a value is not a number

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https://secure.php.net/manual/en/function.is-finite.php