gmp_scan1
(PHP 4 >= 4.0.4, PHP 5)
gmp_scan1  Scan for 1
Description
int
gmp_scan1 ( resource a, int start )
Scans a
, starting with bit
start
, towards more significant bits,
until the first set bit is found. Returns the index of the found
bit. If no set bit is found, 1 is returned.
Example 1. gmp_scan1() example
<?php // "1" bit is found at position 3. index starts at 0 $s1 = gmp_init("01000", 2); echo gmp_scan1($s1, 0) . "\n";
// "1" bit is found at position 9. index starts at 5 $s2 = gmp_init("01000001111", 2); echo gmp_scan1($s2, 5) . "\n"; ?>

The printout of the above program will be:
