(PHP 4 >= 4.0.4, PHP 5)
Returns absolute value of a.
例子 1. gmp_abs() example
<?php$abs1 = gmp_abs("274982683358");$abs2 = gmp_abs("-274982683358");echo gmp_strval($abs1) . "\n";echo gmp_strval($abs2) . "\n";?>
The printout of the above program will be:
274982683358 274982683358
