gmp_scan0
gmp_scan0
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_scan0 — Scan for 0
Description
int gmp_scan0 ( GMP $a , int $start )
Scans a, starting with bit start, towards more significant bits, until the first clear bit is found.
Parameters
Return Values
Returns the index of the found bit, as an integer. The index starts from 0.
Examples
Example #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";
?> The above example will output:
3 7
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.gmp-scan0.php
