Question

在在线IDE云9中显示来自我的数据库的信息时遇到了一些问题。我已经关注了一些关于连接数据库和检索信息的指南，但它似乎没有进入实际回显的while循环＆＃ 39;将信息提供给浏览器。

PHP

$host = getenv("REMOTE_ADDR");
$username = "tannerhallman1";
$password = "";
$database = "Charlotte";
$dbport = 3306;

// Create connection
$db = mysqli_connect($host, $username, $password, $database, $dbport);

// Check connection
if ($db->connect_error) {
    die("Connection failed: " . $db->connect_error);
} 
echo "Connected successfully my dude(".$db->host_info.")";
?>
<?php
    $sql = "SELECT * FROM lenders";
    $records = mysql_query($sql);

    echo "$records"

?>

<html>

<head>
<title>Local Lenders</title>
</head>

<body>
<table width = "600" border = "1" cellpadding="1" cellspacing = "1">
<tr>

<th>ID</th>
<th>First Name</th>
<th>Last Name</th>
<th>Company</th>
<tr>

<?php

while ($lender = mysql_fetch_assoc($records)) {
echo "<tr>";

echo "<td>".$lender['ID']."</td";
echo "<td>".$lender['First']."</td>";
echo "<td>".$lender['Last']."</td>";
echo "<td>".$lender['Company']."</td>";

echo "</tr>";
} //end while

?>

</table>
</body>
</html>

服务器控制台

==> /home/ubuntu/lib/apache2/log/error.log <==
[Mon Mar 23 13:59:17.146489 2015] [:error] [pid 26008] [client  10.240.52.53:54254] PHP Warning:  mysqli_connect(): (HY000/2003): Can't connect      to MySQL server on '10.240.52.53' (111) in /home/ubuntu/workspace/lenders.php on line 13
[Mon Mar 23 13:59:17.146571 2015] [:error] [pid 26008] [client 10.240.52.53:54254] PHP Notice:  Trying to get property of non-object in /home/ubuntu/workspace/lenders.php on line 16
[Mon Mar 23 13:59:17.146580 2015] [:error] [pid 26008] [client 10.240.52.53:54254] PHP Notice:  Trying to get property of non-object in /home/ubuntu/workspace/lenders.php on line 19
[Mon Mar 23 13:59:17.146680 2015] [:error] [pid 26008] [client 10.240.52.53:54254] PHP Warning:  mysql_query(): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in /home/ubuntu/workspace/lenders.php on line 24
[Mon Mar 23 13:59:17.146693 2015] [:error] [pid 26008] [client 10.240.52.53:54254] PHP Warning:  mysql_query(): A link to the server could not be established in /home/ubuntu/workspace/lenders.php on line 24
[Mon Mar 23 13:59:17.146708 2015] [:error] [pid 26008] [client 10.240.52.53:54254] PHP Warning:  mysql_fetch_assoc() expects parameter 1 to be     resource, boolean given in /home/ubuntu/workspace/lenders.php on line 48

C9终端输出

mysql> select * FROM lenders;
+----+--------+---------+--------------+-----------+-------------------------------------------------------+
| ID | First  | Last    | Company      | Phone     | Bio                                                   |
+----+--------+---------+--------------+-----------+-------------------------------------------------------+
|  1 | Tanner | Hallman | UNCW         | 123456789 | I am a cool guy that would be good for your finances. |
|  2 | Wes    | Hallman | Mortgage Pro | 987654321 | I'm a good, cool person.                              |
+----+--------+---------+--------------+-----------+-------------------------------------------------------+
2 rows in set (0.00 sec)

浏览器输出 我得到一个表的开头，带有标题，但它没有检索数据。我已经确认c9实际上可以使用c9终端连接到数据库，所以我迷路了。

成功连接我的家伙（）

ID |名字|姓氏|公司

Answer 1

根据：http://php.net/manual/en/mysqli.quickstart.statements.php

$records = mysql_query($sql);应替换为$records = $db->query($sql);甚至$records = mysqli_query($db, $sql);，因为您没有指定应使用哪个数据库来运行查询

然后while ($lender = mysql_fetch_assoc($records)) {应替换为 while ($lender = $records->fetch_assoc()) {或while ($lender = mysqli_fetch_assoc($records)) {

希望这有帮助。

使用Cloud9上的Php进行数据库字段检索

1 个答案: