Php/docs/function.gmp-clrbit

From Get docs

gmp_clrbit

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

gmp_clrbitClear bit


Description

gmp_clrbit ( GMP $a , int $index ) : void

Clears (sets to 0) bit index in a. The index starts at 0.


Parameters

a
Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
index
The index of the bit to clear. Index 0 represents the least significant bit.


Return Values

A GMP object.


Examples

Example #1 gmp_clrbit() example

<?php$a = gmp_init("0xff");gmp_clrbit($a, 0); // index starts at 0, least significant bitecho gmp_strval($a) . "\n";?>

The above example will output:


254

Notes

Note:

Unlike most of the other GMP functions, gmp_clrbit() must be called with a GMP resource that already exists (using gmp_init() for example). One will not be automatically created.

See Also