Add Prefix to auto-increment in mysql db

Question

I have my database with table test1. It has a primary id \"Id\" which is auto-increment. Now the id is in the format 1,2,3.. . .Is it possible to store the primary Id as PNR

Answer 1

Yes you can do it if you have INT prefix. You have id as INT in table

 // START PREFIX
  $query = mysql_query("SELECT id FROM `table_name` ORDER BY id DESC LIMIT 1"); 
  // GET THE LAST ID MAKE SURE IN TABLE YOU 9991

  while ($row = mysql_fetch_object($query)) {
    $lastId =  $row->id;
  }

  list($prefix,$Id) = explode('999',$lastId );
  $Id = ($Id+1);
  $new_id = '999'.$Id;
  // END PREFIX



$insertQuery = mysql_query("INSERT INTO `table_name` SET id = '".$new_id."',...");