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PHP与Mysql的连接

Jun 06, 2016 pm 07:36 PM
mysql php Hour connect

呼,搞了足足两天零12个小时05分17秒,恍然大悟,原来我把数据库的名字写错了,导致这两天零12个小05分17秒的时间,都在迷惘中度过,不过现在算是解决了,所来特来发下心得体会。 忠告:写程序切记马虎,不细仔,真是写程序的大忌中的大忌。所以以后写代码务

呼,搞了足足两天零12个小时05分17秒,恍然大悟,原来我把数据库的名字写错了,导致这两天零12个小05分17秒的时间,都在迷惘中度过,不过现在算是解决了,所来特来发下心得体会。

忠告:写程序切记马虎,不细仔,真是写程序的大忌中的大忌。所以以后写代码务必:细心仔细不骄不燥,才能写出来好代码来,避免迷惘。。

 

 

 繁写:

     echo "This is a test";
    echo "asdfasdfadsf";
    $mysql_server_name="localhost"; //数据库服务器名称
    $mysql_username="root"; // 连接数据库用户名
    $mysql_password="??????"; // 连接数据库密码
    $mysql_database="??????"; // 数据库的名字
    
    // 连接到数据库
    $conn=mysql_connect($mysql_server_name, $mysql_username,
                        $mysql_password);
                        
     // 从表中提取信息的sql语句
    $strsql="SELECT * FROM `gbook`";
    // 执行sql查询
    $result=mysql_db_query($mysql_database, $strsql, $conn);
    // 获取查询结果
    $row=mysql_fetch_row($result);
    
     
    echo '';
    echo '

';

    // 显示字段名称
    echo "
";
    for ($i=0; $i    {
      echo '
";
    }
    echo "
";
    // 定位到第一条记录
    mysql_data_seek($result, 0);
    // 循环取出记录
    while ($row=mysql_fetch_row($result))
    {
      echo "
";
      for ($i=0; $i      {
        echo '
';
      }
      echo "
";
    }
   
    echo "
'.
      mysql_field_name($result, $i);
      echo "
';
        echo $row[$i];
        echo '
";
    echo "
";
    // 释放资源
    mysql_free_result($result);
    // 关闭连接
    mysql_close($conn);  
?>

 

简写:

 $conn=mysql_connect("localhost", "root", "password");            
 $result=mysql_db_query("Database", "SELECT * FROM `info`", $conn);
    // 获取查询结果
     $row=mysql_fetch_row($result);
    
     
    echo '';
    echo '

';

    // 显示字段名称
    echo "
";
    for ($i=0; $i    {
      echo '
";
    }
    echo "
";
    // 定位到第一条记录
    mysql_data_seek($result, 0);
    // 循环取出记录
    while ($row=mysql_fetch_row($result))
    {
      echo "
";
      for ($i=0; $i      {
        echo '
';
      }
      echo "
";
    }
   
    echo "
'.
      mysql_field_name($result, $i);
      echo "
';
        echo $row[$i];
        echo '
";
    echo "
";
    // 释放资源
    mysql_free_result($result);
    // 关闭连接
    mysql_close($conn);  
?>

 

 echo出来的主要是表格


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