LINUX入门：PHP数据库操作Helper类完整实例

$connection=MysqL_connect($db_host,$db_username,$db_password);

$db_SELEct=MysqL_SELEct_db($db_databasE);

MysqL_query("set names 'utf8'");//编码
$result=MysqL_query($sqlString);

MysqL_fetch_array($result);
MysqL_fetch_row($result);

MysqL_close($connection);

<?PHP
class DBHelper
{
  //建立连接
  function GetConnection($db_host,$db_password)
  {
    $connection=MysqL_connect($db_host,$db_password);
    if($connection==falsE)
      die("数据库连接失败：".MysqL_error());//输入具体错误信息
    return $connection;
  }
  //选择对应数据库
  function DBSELEct($db_databasE)
  {
    $db_SELEct=MysqL_SELEct_db($db_databasE);
    if($db_SELEct==falsE)
      die("数据库选择失败：".MysqL_error());
    return $db_SELEct;
  }
  //执行CRUD操作
  function Excute($sqlString)
  {
    $result=MysqL_query($sqlString);
    return $result;
  }
  //释放资源
  function CloseConnection($connection)
  {
    if($connection!=null)
    MysqL_close($connection);
  }
}
?>

<?PHP
$db_host="localhost";
$db_database="mymessage";
$db_username="root";
$db_password="123456";
?>