1.php 文件中： 修改后的代码，将$row["id"]作为id的参数值传递到2.php
else{
echo '<td>'.'<a href="2.php?id='.$row["id"].'">'.$row["id"].可以修改.'</a></td>'
}
2.php修改如下：
$strSql="SELECT * from test where id=".$_GET['id']
<?php$con = mysql_connect("localhost:3306","root","")
if (!$con) {
die('Could not connect: ' . mysql_error())
}
mysql_select_db("test", $con)
$result = mysql_query("SELECT * FROM user")
echo "<table border='1'>
<tr>
<th>Username</th>
<th>Password</th>
</tr>"
while($row = mysql_fetch_array($result)) {
echo "<tr>"
echo "<td>" . $row['username'] . "</td>"
echo "<td>" . $row['password'] . "</td>"
echo "</tr>"
}
echo "</table>"
mysql_close($con)
?>
从服务器中获取用户所有信息（SQL SELECT语句）并以表格形式出现
<?php
$con = mysql_connect("localhost","root","")
if (!$con) {
die('Could not connect: ' . mysql_error())
}
mysql_select_db("test", $con)
mysql_query("DELETE FROM user WHERE username = '$_POST[username]'")
mysql_close($con)
?>
删除该用户所有信息delete.php
<?php
$con = mysql_connect("localhost:3306","root","")
if (!$con) {
die('Could not connect: ' . mysql_error())
}
mysql_select_db("test", $con)
$sql = "INSERT INTO user (username,password)
VALUES
('$_POST[username]','$_POST[password]')"
if (!mysql_query($sql,$con)) {
die('Error: ' . mysql_error())
}
echo "1 record added"
mysql_close($con)
?>
注册一个新用户insert.php
<?php
$con = mysql_connect("localhost","root","")
if (!$con) {
die('Could not connect: ' . mysql_error())
}
mysql_select_db("test", $con)
mysql_query("UPDATE user SET password = '$_POST[password]' WHERE username = '$_POST[username]'")
mysql_close($con)
?>
修改一个用户密码update.php
<html>
<head>
<title>FORM</title>
</head>
<body>
<br />
<h1>Insert:</h1>
<form action="insert.php" method="post">
username:<input type="name" name="username"/>
<br />
password:<input type="password" name="password"/>
<input type="submit" value="submit"/>
</form>
<br /><hr /><br />
<h1>Delete</h1>
<form action="delete.php" method="post">
username:<input type="name" name="username" />
<br />
Are you sure?<input type="submit" value="sure" />
</form>
<br /><hr /><br />
<h1>Update</h1>
<form action="update.php" method="post">
username:<input type="name" name="username"/>
<br />
You want to change your password into:<input type="password" name="password"/>
<input type="submit" value="submit"/>
</form>
<br /><hr /><br />
</body>
</html>
以上三个功能的提交源Operate.html
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