gmp_sign

Sign of number (PHP 4 >= 4.0.4, PHP 5)
int gmp_sign ( resource a )

Checks the sign of a number.

a: It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

Returns 1 if a is positive, -1 if a is negative, and 0 if a is zero.

<?php

// positive

echo gmp_sign("500") . "\n";



// negative

echo gmp_sign("-500") . "\n";



// zero

echo gmp_sign("0") . "\n";

?>

The above example will output:

<< gmp_setbit	Main : Function Reference : GMP Functions : gmp_sign	gmp_sqrt >>
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