Javascript debugger
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int gmp_scan1 ( resource a, int start )

`a`The number to scan.

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

`start`The starting bit.

Returns the index of the found bit, as an integer. If no set bit is found, -1 is returned.

`<?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 above example will output:

`3`

9

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