Description
Scans a, starting with bit
start, towards more significant bits,
until the first set bit is found.
Parameters
Return Values
Returns the index of the found bit, as an integer. If no set bit is found, -1 is returned.
Examples
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 above example will output:
3 9
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-gmp-scan1.html
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References
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