The gmp_scan1() function scans “1” in the GMP number beginning from a particular index that you can set as a parameter.
Syntax
gmp_scan1(n,i)
Parameters
n − The GMP number to be passed.
i − The index from where the search begin.
Return
The gmp_scan1() function returns the index of the “1” bit. It is checked after the particular index.
Example
The following is an example −
<?php
$val = gmp_init("01010001111", 2);
echo gmp_scan1($val, 5);
?>Output
The following is the output −
7