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Latest Version [8.00202205221] Last Updated [May-22-2022]

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PHP Manual [gmp_testbit]

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PHP Manual || GMP Functions

(PHP 5 >= 5.3.0, PHP 7)

gmp_testbitTests if a bit is set

Description

gmp_testbit ( GMP $a , int $index ) : bool

Tests if the specified bit is set.

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 bit to test

Return Values

Returns TRUE if the bit is set in resource $a, otherwise FALSE.

Errors/Exceptions

An E_WARNING level error is issued when index is less than zero, and FALSE is returned.

Examples

Example #1 gmp_testbit() example

<?php
$n 
gmp_init("1000000");
var_dump(gmp_testbit($n1));
gmp_setbit($n1);
var_dump(gmp_testbit($n1));
?>

The above example will output:

bool(false)
bool(true)

See Also



PHP Manual || GMP Functions