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<?php
class Db implements IDb {
private static $instance;
private $adapter;
private $link;
private function __construct() {
switch (DB_TYPE) {
case "mysql":
if (function_exists("mysqli_connect")) {
$this->adapter = new Db_Mysqli();
} else {
$this->adapter = new Db_Mysql();
}
break;
case "pgsql":
$this->adapter = new Db_Pgsql();
break;
default:
die("Unknown DB_TYPE: " . DB_TYPE);
}
$this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, defined('DB_PORT') ? DB_PORT : false);
}
private function __clone() {
//
}
public static function get() {
if (self::$instance == null)
self::$instance = new self();
return self::$instance;
}
static function quote($str){
return("'$str'");
}
function connect($host, $user, $pass, $db, $port) {
//return $this->adapter->connect($host, $user, $pass, $db, $port);
return ;
}
function escape_string($s, $strip_tags = true) {
return $this->adapter->escape_string($s, $strip_tags);
}
function query($query, $die_on_error = true) {
return $this->adapter->query($query, $die_on_error);
}
function fetch_assoc($result) {
return $this->adapter->fetch_assoc($result);
}
function num_rows($result) {
return $this->adapter->num_rows($result);
}
function fetch_result($result, $row, $param) {
return $this->adapter->fetch_result($result, $row, $param);
}
function close() {
return $this->adapter->close();
}
function affected_rows($result) {
return $this->adapter->affected_rows($result);
}
function last_error() {
return $this->adapter->last_error();
}
}
?>
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