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学了这么久 居然不知道怎么做 ~~

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学了这么久 居然不知道怎么做 ~~

$result = mysql_query($sql);
while( $rows = mysql_fetch_array($result))
{
print_r($rows);
}

很简单 只需要开启PHP的mysqli扩展 仿照如下代码写出来就行

<code><?php $con = mysql_connect("localhost","peter","abc123");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

// 执行SQL语句
result = $conn -> query( 'select * from data_base' );
$row = $result -> fetch_row(); //取一行数据
echo row[0]; //输出第一个字段的值
// 或者这样
while($row=mysql_fetch_array($result)) { 
     //对每行记录进行运算 处理,如 :echo $row['name']."<br>"; 
}

mysql_close($con);
</code>

http://php.net/mysqli
mysqli::query 执行 SELECT 成功后返回 mysqli_result, 然后调用 mysqli_result::fetch_all 就可以获得一个完整的结果集数组. mysqli_result::fetch_all 的参数默认为 MYSQLI_NUM , 其他参数 MYSQLI_ASSOC, MYSQLI_BOTH.

<code><?php $mysqli = @new mysqli($db_host, $db_username, $db_password, $db_name, $db_port);
if ($mysqli->connect_errno) exit($mysqli->connect_error);
$mysqli->set_charset('utf8');
$result = $mysqli->query('SELECT * FROM table');
print_r($result->fetch_all());
$result->close();
$mysqli->close();
</code>

楼上说得方法都对,但都忘记了一点很重要的东西,
就是这整张表如果很大的话, 这么干肯定不行.
楼主可以封装一个类, 分批取出数据 然后置入缓存,
缓存慢了就马上输出到客户端.
这样在性能和用户体验上才更好.

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