gmp_sign
(PHP 4 >= 4.0.4, PHP 5)
gmp_sign -- Sign of number
Description
int
gmp_sign ( resource a )
Returns 1 if a is positive, -1 if a is negative, and 0 if a is zero.
Example 1. gmp_sign() example <?php
// positive
echo gmp_sign("500") . "\n";
// negative
echo gmp_sign("-500") . "\n";
// zero
echo gmp_sign("0") . "\n";
?> |
The printout of the above program will be: |