gmp_scan0
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_scan0 — Scan for 0
Description
Scans num1, 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 int. 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
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