is_finite
(PHP 4 >= 4.2.0)
is_finite -- Finds whether a value is a legal finite number
Description
bool is_finite ( float val)
Returns TRUE if val is a legal finite number within the
allowed range for a PHP float on this platform.
See also is_infinite() and is_nan().
is_infinite
(PHP 4 >= 4.2.0)
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().
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