自增函数

Posted 2021-02-27

function mysql_autoid($id,$table){
    $query = 'SELECT MAX('.$id.') AS last_id FROM '.$table;
    $result = mysql_query($query);
    $result = mysql_fetch_array($result);
    return $result[last_id]+1;
}
 
// usage mysql_autoid('nID','news');
// for use with fields that don't have auto_increment enabled
// otherwise just use $last_id = mysql_insert_id(); following a successful INSERT