Question

我收到此错误：

Notice: Undefined index: kolebro in /Applications/MAMP/htdocs/includes.php on line 12

function.php

public function User_Details($uid) 
{
    $username = mysql_real_escape_string($uid);
    $query = mysql_query("SELECT uid, username, sansiti, kolebro AS full_name FROM users WHERE uid = '$uid' AND status = '1'") or die(mysql_error());
    $data = mysql_fetch_array($query);
    return $data;    
}

includes.php

$session_data = $Wall->User_Details($uid);
$session_sansiti = $session_data['sansiti']; // <== Line 12
$session_kolebro = $session_data['kolebro'];

的index.php

<?php echo $session_kolebro; ?>
<?php echo $session_sansiti; ?>

任何人都可以帮助我理解（导致什么）这个错误吗？

Answer 1

您正在使用别名kolebro检索数据库字段full_name，因此$session_data不会拥有kolebro索引，而是{＆＃39}。将有一个名为full_name的人。

将$session_data['kolebro']更改为$session_data['full_name']
或从MySQL查询中删除AS full_name。

此外，please don't use mysql_* functions in new code。它们不再被维护and are officially deprecated。请参阅red box？转而了解prepared statements，并使用PDO或MySQLi - this article将帮助您确定哪个。如果您选择PDO here is a good tutorial。

未定义的索引

1 个答案: