Руководство по PHP
Пред. |  | След.

# is_infinite

(PHP 4 >= 4.2.0, PHP 5)

is_infinite -- Finds whether a value is infinite

## Description

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.

See also is_finite() and is_nan().

Пред. | Начало | След.
is_finite | Уровень выше | is_nan