is_infinite

(PHP 4 >= 4.2.0, PHP 5)

is_infinite — Finds whether a value is infinite

Описание

bool is_infinite ( float $val )

Returns TRUE if val is infinite (positive or negative), like the result of log(0) or any value too big to fit into a float on this platform.

Список параметров

val: The value to check

Возвращаемые значения

TRUE if val is infinite, else FALSE.

Смотрите также

is_finite() - Finds whether a value is a legal finite number
is_nan() - Finds whether a value is not a number