The gmp_scan0() function scans “0” in a GMP number beginning from a particular index that you can set as a parameter. It moves to the most significant bits in the number.
Syntax
gmp_init(n,i)
Parameters
n: The GMP number to be passed.
i: The index from where the search begin.
Return
The gmp_scan0() function returns the index of the “0” bit. It is checked after the particular index.
Example
The following is an example:
<?php
$val = gmp_init("01010011001", 2);
echo gmp_scan0($val, 3);
?>Output
The following is the output:
5