如何在php中使用会话变量在html表上添加我的数据库
我有一个网站，有多个用户提交一些请求，所以每个用户都有自己的请求表。我的问题是，我试图通过使用会话变量获取用户名称并将其与请求表匹配来显示表中每个用户的请求，但这不起作用如何在php中使用会话变量在html表上添加我的数据库,php,html,mysql,uitableview,session-variables,Php,Html,Mysql,Uitableview,Session Variables,我有一个网站，有多个用户提交一些请求，所以每个用户都有自己的请求表。我的问题是，我试图通过使用会话变量获取用户名称并将其与请求表匹配来显示表中每个用户的请求，但这不起作用 $userin= $_SESSION['username']; $req = "SELECT * FROM request_table where r_status='pending' AND requester = 'max';"; $request_table = $conn->query($req); 如
$userin= $_SESSION['username'];
$req = "SELECT * FROM request_table where r_status='pending' AND requester = 'max';";
$request_table = $conn->query($req);
Notice: Trying to get property 'num_rows' of non-object in C:\xampp\htdocs\website\b_table.php on line 54.
<body>
<h1 align="center">Table</h1>
<table border="5" align="center" style="line-height:20px;">
<tr>
<th>Request ID</th>
<th>Requester name</th>
<th>Customer name</th>
<th>Description</th>
<th>Submition Date</th>
<th>Request Status</th>
<th>link</th>
</tr>
<?php
//Fetch Data form database
if($request_table->num_rows > 0){
while($view_request = $request_table->fetch_assoc()){
?>
<tr>
<td><?php echo $view_request['request_id']; ?></td>
<td><?php echo $view_request['requester']; ?></td>
<td><?php echo $view_request['customer_name']; ?></td>
<td><?php echo "Site A is:". $view_request['site_a']. ",<br> Site B is: ".$view_request['site_b']. ",<br>NO. Of links =:".$view_request['no_oflinks']; ?></td>
<td><?php echo $view_request['sub_date']; ?></td>
<td><?php echo $view_request['request_status']; ?></td>
<form action="view_request.php" method="GET"><td><button type="vieww" name="vieww" value= <?php echo $view_request['request_id']; ?>> View </button></td></form>
</tr>
<?php
}
}
else
{
?>
<tr>
<th colspan="7">No Data availabe</th>
</tr>
<?php
}
$conn->close();
?>
</table>
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[enter image description here][1]
[1]: https://i.stack.imgur.com/pOHOX.jpg
桌子
请求ID
请求者名称
客户名称
描述
提交日期
请求状态
链接
没有可用的数据
``````````````````````````````````````````````````````````````````````````````````````````
[在此处输入图像描述][1]
[1]: https://i.stack.imgur.com/pOHOX.jpg
if(isset($_SESSION['username'])){
$userin= $_SESSION['username'];
}
else{
die("Session user name wasn't set");
}
$req = "SELECT * FROM request_table where r_status='pending' AND requester = '$userin';"
希望有帮助。您可以进行一些调试和测试。 like检查是否设置了会话变量like：
if(isset($_SESSION['username'])){
$userin= $_SESSION['username'];
}
else{
die("Session user name wasn't set");
}
$req = "SELECT * FROM request_table where r_status='pending' AND requester = '$userin';"
希望对您有所帮助。请发布您的数据库结构。此错误发生在列名称中您的
$mysqli->query（）falsevar_dump（$userin）；退出var_dump（$userin）；退出$userin=$\u会话['username']$userin$mysqli->query（）falsevar_dump（$userin）；退出var_dump（$userin）；退出$userin=$\u会话['username']$userin