Question

这是我的checklogin.php

<?php
session_start();
ob_start();
$host="localhost"; // Host name
$username="root"; // Mysql username
$password="password"; // Mysql password
$db_name="lecturer"; // Database name
$tbl_name="members"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

// Define $myusername and $mypassword

$myid=$_POST['myid'];
$mypassword=$_POST['mypassword'];

// To protect MySQL injection (more detail about MySQL injection)
$myid = stripslashes($myid);
$mypassword = stripslashes($mypassword);
$myid = mysql_real_escape_string($myid);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE ID='$myid' and password='$mypassword' LIMIT 1 ";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);

// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){

// Register $myusername, $mypassword and redirect to file "login_success.php"
$_session['myid'] = 'myid';
$_session['mypassword'] = 'mypassword';
$info = mysql_fetch_array($result);
if($info['id'] == 0){
    header("location: webpage.php");
}
else if ($info['id'] == 100) {
    header("location: lecturer_user.php?myid=$myid");
}
else if ($info['id'] == 102) {
    header("location: lecturer_user.php");
}
else {
echo "Wrong Username or Password";
header ("refresh:5; url=main_login.php");

}
}
ob_end_flush();
?>

<html>
    <body>
        <table>
<th><a href="main_login.php?pressed=back">Back</a></th>
        </table>
    </body>
</html>

这是我的讲话_user.php

<?php
session_start();
echo "<a href=\"drop.php?myid=".$_SESSION['myid']."\">drop</a>";
?>

这是我的drop.php

<html>
    <head></head>
    <body>

<?php

$conn = mysql_connect('localhost','root','password');
mysql_select_db('lecturer');



$myid = $_GET["myid"];

$query = 'SELECT persons.ID , persons.FirstName , user_subject.subject
FROM persons
INNER JOIN user_subject
ON persons.ID = user_subject.ID
WHERE persons.ID = '.$myid.' ORDER BY user_subject.subject';

$result = mysql_query($query) or die(mysql_error());
?>


<table width="400" border="0" align="center" cellspacing="1" cellpadding="0">
<tr>
<td><form name="form1" method="post" action="">
<table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td bgcolor="#FFFFFF">&nbsp;</td>
<td colspan="4" bgcolor="#FFFFFF"><strong>Drop subject</strong> </td>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">#</td>
<td align="center" bgcolor="#FFFFFF"><strong>ID</strong></td>
<td align="center" bgcolor="#FFFFFF"><strong>Subject</strong></td>

</tr>

<?php while($row = mysql_fetch_assoc($result)) { ?>
<tr>
    <td align="center" bgcolor="#FFFFFF"><input type="checkbox" name="data[]" value="<?php echo $row['ID'];?>" /></td>
    <td bgcolor="#FFFFFF"> <?php echo $row['ID']; ?> </td>
    <td bgcolor="#FFFFFF"> <?php echo $row['subject']; ?> </td>

</tr>
<?php } ?>
<tr>
    <td colspan="3" align="left" bgcolor="#FFFFFF"><input type="submit" value="Delete Checked Rows" /></td>
    <td colspan="2" align="right" bgcolor="#FFFFFF"><a href="user_subject.php?pressed=subject">Back</a></td>


</tr>


<?php
if(isset($_POST['data'])) {
$del_query = "DELETE FROM user_subject WHERE ID IN (";
foreach($_POST['data'] as $data) {
$del_query .= "'" . (int) $data . "',";
}
$del_query .= "'')";
mysql_query($del_query) or die(mysql_error());
header("Location:" . $_SERVER['PHP_SELF']);
}



mysql_close()


?>
</table>
</form>
</tr>
</table>
</body>
</html>

我想要做的是当我以id = 100登录时，它将导致讲授_user.php？myid = 100 并且主要的问题是当我在讲座_user时我希望会话ID识别为id = 100，因此每个用户都有自己唯一的id 当我点击视图即test.php时，它会将其重定向为testing.php？myid = 100，这样我只能查看id = 100个主题，而不能查看其他主题。

我想要的是当用户ID 100登录时只能查看自己的个人资料。谢谢

谢谢

Answer 1

您正在设置

 $_session['myid'] = 'myid';

使用

 $_session['myid'] = $info['id'];

在checklogin.php中

Answer 2

登录成功时，将ID为登录用户的会话变量设置为：

$_SESSION['myid'] = $info['id'];

这样您就可以访问所有页面中的登录用户，直到您将其取消设置为

$_SESSION['myid'];

确保您在用户退出时不要忘记取消设置会话。

Answer 3

试试这个

$_session['myid'] = $myid ;
$_session['mypassword'] = $mypassword ;

Answer 4

在 checklogin.php 中将会话设置为：

$_SESSION['myid'] = $myid;
$_SESSION['mypassword'] = $mypassword;

同样从 lecturer_user.php 中删除session_start();，因为您已经在 checklogin.php

中启动了会话

我登录时如何将我的id值传递给其他php文件

4 个答案: