(PHP 4 >= 4.2.0, PHP 5)
is_finite — Finds whether a value is a legal finite number
Описание
bool is_finite ( float $val )Checks whether val is a legal finite on this platform.
Список параметров
- val
-
The value to check
Возвращаемые значения
TRUE if val is a legal finite number within the allowed range for a PHP float on this platform, else FALSE.
Смотрите также
| is_infinite() |
| is_nan() |
