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gmp_scan0

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_scan0Scan for 0

Descrição

gmp_scan0(GMP|int|string $num1, int $start): int

Scans num1, starting with bit start, towards more significant bits, until the first clear bit is found.

Parâmetros

num1

The number to scan.

Um objeto GMP, um int ou uma string numérica.

start

The starting bit.

Valor Retornado

Returns the index of the found bit, as an int. The index starts from 0.

Exemplos

Exemplo #1 gmp_scan0() example

<?php
// "0" bit is found at position 3. index starts at 0
$s1 = gmp_init("10111", 2);
echo
gmp_scan0($s1, 0) . "\n";

// "0" bit is found at position 7. index starts at 5
$s2 = gmp_init("101110000", 2);
echo
gmp_scan0($s2, 5) . "\n";
?>

O exemplo acima produzirá:

3
7

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