SESSION を生成loginok.php
<?php session_start();if($_GET['action'] == "logout"){ unset($_SESSION['username']); unset($_SESSION['userid']); exit('注销成功!<a href="javascript:history.back(-1);">点击返回</a>'); } if(isset($_POST['submit']) == ""){ exit('非法访问!!'); } $username= htmlspecialchars(trim($_POST['username']));$pwd = MD5(trim($_POST['pwd']));include('conn.php');$mql="select userid from users where username ='$username' and pwd='$pwd' limit 1"; $check_user =mysql_query($mql,$conn); if($result =mysql_fetch_array($check_user)){ $_SESSION['username']= $username; $_SESSION['userid'] = $result['$userid']; echo $username.',欢迎到来!<a href="my.php">用户中心</a><br/>'; echo '<a href="index.php">点击进入主页</a>'; exit();}else{ echo '登陆失败!点击<a href="javascript:history.back(-1);">返回</a>'; } ?>
めちゃくちゃなので再投稿
Generate SESSION loginok.php
<?php session_start();if($_GET['action'] == "logout"){ unset($_SESSION['username']); unset($_SESSION['userid']); exit('注销成功!<a href="javascript:history.back(-1);">点击返回</a>'); }if(isset($_POST['submit']) == ""){ exit('非法访问!!'); }$username= htmlspecialchars(trim($_POST['username']));$pwd = MD5(trim($_POST['pwd']));include('conn.php');$mql="select userid from users where username ='$username' and pwd='$pwd' limit 1"; $check_user =mysql_query($mql,$conn); if($result =mysql_fetch_array($check_user)){ $_SESSION['username']= $username; $_SESSION['userid'] = $result['$userid']; echo $username.',欢迎到来!<a href="my.php">用户中心</a><br/>'; echo '<a href="index.php">点击进入主页</a>'; exit();}else{ echo '登陆失败!点击<a href="javascript:history.back(-1);">返回</a>'; }?>
<?php session_start();var_dump($_SESSION['userid']);if(! isset($_SESSION['userid'])){ echo "<a href='login.php'>登陆</a> <a href='zhuce.html'>注册</a>";}else{ $username =$_SESSION['username']; echo $username.",欢迎到来<a href='loginok.php?action=logout'>注销</a>"; echo $_SESSION['userid']; echo "<a href='login.php'>登陆</a> <a href='zhuce.html'>注册</a>";}
どのブラウザでテストしましたか?
IE も Sogou も動作しません
Firefox と Chrome は動作しません
非常に単純な 24 行で解決されました $_SESSION['userid'] = $result['$userid']; 間違っています、Baidu が知っておく方が良いです