许多人可能会使用 PHP mySQL 函数作为网站的登录部分
我正在尝试使用此代码;
在每个内容页面上 - 检查是否登录(在每个内容页面的标题中)
<?php
session_start();
if(! isset($_SESSION["myusername"]) ){
header("location:main_login.php");
}
?>
<html>
<body>
Page Content Here
</body>
</html>
登录脚本(由我的 main_login.php 页面引用)
<?php
ob_start();
$host="ClubEvents.db.9606426.hostedresource.com"; // Host name
$username="ClubEventsRead"; // Mysql username
$password="Pa55word!"; // Mysql password
$db_name="ClubEvents"; // 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
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($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_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
ob_end_flush();
?>
注销代码
<?
session_start();
session_destroy();
header("location:main_login.php");
exit();
?>
MAIN_LOGIN.php
<table width="300" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1" method="post" action="checklogin.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Member Login </strong></td>
</tr>
<tr>
<td width="78">Username</td>
<td width="6">:</td>
<td width="294"><input name="myusername" type="text" id="myusername"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="mypassword" type="text" id="mypassword"></td>
</tr>
<tr>
<td> </td>
<td> </td>
<td><input type="submit" name="Submit" value="Login"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
<?php
phpinfo()
?>
但是有些东西不起作用,页面 login_success.php 应该只有在登录时才能访问,所以要么注销不起作用,要么 login_success.php 检查不起作用。但我不知道该怎么说,我都试着和他们一起玩了,还是没有进一步的前进
问候
亨利