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Last updated: Sat, 27 Jan 2007

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# 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.

Пример 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:

    1
    -1
    0

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gmp_sqrt gmp_setbit

Last updated: Sat, 27 Jan 2007
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