function rg($table, $column, $length)
{
$uniq = random_generator($length);
$sql = "SELECT count(*) from {$table} where {$column}='{$uniq}'";
$exec = mysql_query($sql);
list($num) = mysql_fetch_row($exec);
if ($num == 0) {
return $uniq;
} else {
return rg($table, $column, $length);
}
}
function rg()
{
$number = '0123456789';
srand((double) microtime() * 1000000);
$str = "";
$i = 0;
while ($i < 9) {
$num = rand(0, 9) % 33;
$tmp = substr($number, $num, 1);
$str = $str . $tmp;
$i++;
}
$temp1 = $str;
$tmp = $str % 10;
$temp1 /= 10;
$temp = $temp1 % 10;
$sum = $temp;
if ($temp * 2 > 9) {
$t = $temp * 2;
$sum = 0;
while ($t != 0) {
$remainder = $t % 10;
$sum = $sum + $remainder;
$t = $t / 10;
}
}
$str = substr($str, 0, 7) . $sum;
$sum = $tmp;
if ($tmp * 2 > 9) {
$t = $tmp * 2;
$sum = 0;
while ($t != 0) {
$remainder = $t % 10;
$sum = $sum + $remainder;
$t = $t / 10;
}
}
$str = substr($str, 0, 8) . $sum;
$t = $str;
$sum = 0;
while ($t != 0) {
$remainder = $t % 10;
$sum = $sum + $remainder;
$t = $t / 10;
}
if ($sum % 10 !== 0) {
$sum = rg();
} else {
return $str;
}
return $sum;
}
