您好我已经为我的数据库制作了Php类,我在Windows 10上使用XAMPP。
似乎出现问题,我找不到问题,我不知道它是在我的类文件中还是在我的inex.php文件中
这是错误:
致命错误:未捕获错误:在D:\ XAMP \ htdocs \ telepol \ userInfo.php中找不到类'db':5堆栈跟踪:#0 D:\ XAMP \ htdocs \ telepol \ userInfo.php(43) :第5行的D:\ XAMP \ htdocs \ telepol \ userInfo.php中抛出showData()#1 {main}
db.php中
<? php
class db{
private $_conn;
private $_host = "localhost";
private $_username = "root";
private $_psw = "";
private $_dbName = "users";
public function __construct(){
$this->_conn = new mysqli($this->_host, $this->_username, $this->_psw, $this->_dbName);
if ($this->_conn->connect_error){
die("Connection failed: " . $this->_conn->connect_error);
}
}
public function getCon(){
return $this->_conn;
}
}
?>
userInfo.php
<?php
require_once 'classes/db.php';
function showData(){
$conn = new db();
$br = 1; //br is used to displat the number of each row in the table.
$userQuery = "SELECT* FROM users";
$result = $conn->getCon()->query($userQuery);
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
echo "<tr> <td>" .$br ."</td> <td>" .$row["first_name"] ."</td> <td>" .$row["last_name"] ."</td> <td>" .$row["nickname"] ."</td> <td>" .$row["user_id"] ."</td> <br>" ;
$br ++;
}
}
$conn->close();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Users Info</title>
<!-- adding JS scripts -->
<script type="text/javascript" src="jquery-3.1.1.min.js"></script>
<!-- adding css -->
<link rel="stylesheet" href="css/bootstrap.css">
<link rel="stylesheet" href="css/bootstrap.min.css">
<!-- my CSS -->
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<table class="table table-striped table-bordered table-hover table-sm">
<thead class="thead-default">
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Nickname</th>
<th>User ID</th>
</tr>
</thead>
<?php showData(); ?>
</table>
</body>
</html>
答案 0 :(得分:-1)
你的$ conn变量不是连接而是包装器,而是你的连接在:$ conn-&gt; getCon()
所以你可以使用:
$result = $conn->getCon()->query($userQuery);