is_finite

(PHP 4 >= 4.2.0, PHP 5)

is_finite — Finds whether a value is a legal finite number

Description

bool is_finite ( float $val )

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