如何接收<?php echo './empDel.php?e_id='.$row['e_id'] ?>
时间: 2024-05-01 12:20:13 浏览: 17
如果你想接收这个 PHP 代码段中的参数,可以使用 `$_GET` 超全局变量来获取。具体地,在 PHP 代码中,你可以这样写:
```
$e_id = $_GET['e_id'];
```
这样就可以获取 `e_id` 参数的值了。在这个例子中,`$e_id` 变量将被赋值为 `$row['e_id']` 的值。注意,`$_GET` 变量是一个关联数组,其中键是参数名,值是参数值。如果请求中没有相应的参数,`$_GET` 返回一个空数组。
相关问题
<?php echo './empDel.php?e_id='.$row['e_id'] ?>
这是一段 PHP 代码,使用了 echo 函数和字符串拼接操作符 '.',将一个字符串 './empDel.php?e_id=' 和变量 $row['e_id'] 进行拼接,然后输出到浏览器中。这段代码的作用是生成一个 URL,其中包含一个参数 e_id,值为 $row['e_id']。一般来说,这样的 URL 可以用于删除一个员工的信息。
找出这串代码的错误并给出正确答案<!DOCTYPE html> <?php require_once('./conn.php'); $sql = "select * from result"; $result = $conn->query($sql); if ($result->num_rows>0){ while($row = $result->fetch_assoc()) { ?> <tr> <td><?php echo $row['id'] ?></td> <td><?php echo $row['name'] ?></td> <td><?php echo $row['age'] ?></td> <td><?php echo $row['result'] ?></td> <td> <button onclick="toUpdate(this)">修改</button> <button onclick="remove(this)">删除</button> </td> </tr> <?php } } $conn->close(); ?> <html> <head> <meta charset="utf-8" /> <link rel="stylesheet" type="text/css" href="css/style.css"/> <script type="text/javascript" src="js/index.js"></script> <title>学生成绩管理系统</title> </head> <body> <h1>学生成绩管理系统</h1> <table> <tr> <td><a href="insert.php"><button>添加</button></a></td> </tr> </table> </body> </html> <script type="text/javascript"> function remove(ele){ let id = ele.parentElement.parentElement.children[0].innerText; window.location.href="remove_server.php?id="+id; } function toUpdate(ele) { let id = ele.parentElement.parentElement.children[0].innerText; window.location.href = "./update.php?id="+id; } </script>
这段代码的错误是在 HTML 标签和 PHP 代码之间有一个空行,这可能会导致输出带有额外的空格或换行符。正确的代码如下所示:
```
<!DOCTYPE html>
<?php require_once('./conn.php');
$sql = "select * from result";
$result = $conn->query($sql);
if ($result->num_rows>0) {
while($row = $result->fetch_assoc()) { ?>
<tr>
<td><?php echo $row['id'] ?></td>
<td><?php echo $row['name'] ?></td>
<td><?php echo $row['age'] ?></td>
<td><?php echo $row['result'] ?></td>
<td>
<button onclick="toUpdate(this)">修改</button>
<button onclick="remove(this)">删除</button>
</td>
</tr>
<?php
}
}
$conn->close();
?>
<html>
<head>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="css/style.css"/>
<script type="text/javascript" src="js/index.js"></script>
<title>学生成绩管理系统</title>
</head>
<body>
<h1>学生成绩管理系统</h1>
<table>
<tr>
<td><a href="insert.php"><button>添加</button></a></td>
</tr>
</table>
</body>
</html>
<script type="text/javascript">
function remove(ele) {
let id = ele.parentElement.parentElement.children[0].innerText;
window.location.href="remove_server.php?id="+id;
}
function toUpdate(ele) {
let id = ele.parentElement.parentElement.children[0].innerText;
window.location.href = "./update.php?id="+id;
}
</script>
```
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