rsPlurkAI training site PHP connection code in 2011

conn.php

<?php
  require_once("functions.php");

  class AIDatabase {
    var $m_conn = 0;
    var $m_query = 0;

    // Constructor
    function AIDatabase() {}

    // Functions
    function Connect() {
      require("config.php"); 
      $conn = mysql_connect($sch["host"], $sch["user"], $sch["psw"]);
      if (!$conn) terminal(101);
      mysql_query("SET NAMES 'utf8'");
      if (!mysql_select_db($sch["db"], $conn)) terminal(102);
      $this->m_conn = $conn;
      return true;
    }

    function Query($sqlStatement) {
      $query = mysql_query($sqlStatement, $this->m_conn);
      if (!$query) terminal(103);
      $this->m_query = $query;
      return $query;
    }

    function RowCount() {
      return mysql_num_rows($this->m_query);
    }

    function Rows() {
      return mysql_fetch_array($this->m_query, MYSQL_ASSOC);
    }

    function InsertId() {
      return mysql_insert_id($this->m_conn);
    }

    function AffectedRowCount() {
      return mysql_affected_rows($this->m_conn);
    }
  }
?>