Question

I am looking for a random number generating PHP Solution which did not generate same number again.. is there any solution then please let me know..

I need this solution for one of my Project which generate uniqu key for URL and i don’t want to check Generated number is existed or not from the data..

Thanks..

——— EDIT ———-

I am using this random number generating method is its help full?

function randomString($length = 10, $chars = '1234567890') {

// Alpha lowercase
if ($chars == 'alphalower') {
    $chars = 'abcdefghijklmnopqrstuvwxyz';
}

// Numeric
if ($chars == 'numeric') {
    $chars = '1234567890';
}

// Alpha Numeric
if ($chars == 'alphanumeric') {
    $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
}

// Hex
if ($chars == 'hex') {
    $chars = 'ABCDEF1234567890';
}

$charLength = strlen($chars)-1;

for($i = 0 ; $i < $length ; $i++)
    {
        $randomString .= $chars[mt_rand(0,$charLength)];
    }

return $randomString;
}

Answer 1

Look at the php function uniqid():
http://php.net/manual/en/function.uniqid.php