   #PHP Manual Mathematical Functions is_finite is_nan

   PHP Manual
   Prev  Next
   ______________________________________________________________________

                                  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().
   ______________________________________________________________________

   Prev      Home   Next
   is_finite  Up  is_nan
