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1 <html> 2 <head> 3 <meta charset="utf-8"> 4 <title>Registration</title> 5 <link rel="stylesheet" href="css/style.css" /> 6 </head> 7 <body> 8 <?php 9 require('db.php'); 10 // If form submitted, insert values into the database. 11 if (isset($_REQUEST['username'])){ 12 // removes backslashes 13 $username = stripslashes($_REQUEST['username']); 14 //escapes special characters in a string 15 $username = mysqli_real_escape_string($con,$username); 16 $email = stripslashes($_REQUEST['email']); 17 $email = mysqli_real_escape_string($con,$email); 18 $password = stripslashes($_REQUEST['password']); 19 $password = mysqli_real_escape_string($con,$password); 20 $trn_date = date("Y-m-d H:i:s"); 21 $query = "INSERT into `users` (username, password, email, trn_date) 22 VALUES ('$username', '".md5($password)."', '$email', '$trn_date')"; 23 $result = mysqli_query($con,$query); 24 if($result){ 25 echo "<div class='form'> 26 <h3>You are registered successfully.</h3> 27 <br/>Click here to <a href='login.php'>Login</a></div>"; 28 } 29 }else{ 30 ?> 31 <div class="form"> 32 <h1>Registration</h1> 33 <form name="registration" action="" method="post"> 34 <input type="text" name="username" placeholder="Username" required /> 35 <input type="email" name="email" placeholder="Email" required /> 36 <input type="password" name="password" placeholder="Password" required /> 37 <input type="submit" name="submit" value="Register" /> 38 </form> 39 </div> 40 <?php } ?> 41 </body> 42 </html> 43 <!DOCTYPE html> 44 <html> 45 <head> 46 <meta charset="utf-8"> 47 <title>Login</title> 48 <link rel="stylesheet" href="css/style.css" /> 49 </head> 50 <body> 51 <?php<!DOCTYPE html> 52 53 require('db.php'); 54 session_start(); 55 // If form submitted, insert values into the database. 56 if (isset($_POST['username'])){ 57 // removes backslashes 58 $username = stripslashes($_REQUEST['username']); 59 //escapes special characters in a string 60 $username = mysqli_real_escape_string($con,$username); 61 $password = stripslashes($_REQUEST['password']); 62 $password = mysqli_real_escape_string($con,$password); 63 //Checking is user existing in the database or not 64 $query = "SELECT * FROM `users` WHERE username='$username' 65 and password='".md5($password)."'"; 66 $result = mysqli_query($con,$query) or die(mysql_error()); 67 $rows = mysqli_num_rows($result); 68 if($rows==1){ 69 $_SESSION['username'] = $username; 70 // Redirect user to index.php 71 header("Location: index.php"); 72 }else{ 73 echo "<div class='form'> 74 <h3>Username/password is incorrect.</h3> 75 <br/>Click here to <a href='login.php'>Login</a></div>"; 76 } 77 }else{ 78 ?> 79 <div class="form"> 80 <h1>Log In</h1> 81 <form action="" method="post" name="login"> 82 <input type="text" name="username" placeholder="Username" required /> 83 <input type="password" name="password" placeholder="Password" required /> 84 <input name="submit" type="submit" value="Login" /> 85 </form> 86 <p>Not registered yet? <a href='registration.php'>Register Here</a></p> 87 </div> 88 <?php } ?> 89 </body> 90 </html> 91 <?php 92 // Enter your Host, username, password, database below. 93 // I left password empty because i do not set password on localhost. 94 $con = mysqli_connect("localhost","root","","registration"); 95 // Check connection 96 if (mysqli_connect_errno()) 97 { 98 echo "Failed to connect to MySQL: " . mysqli_connect_error(); 99 } 100 ?> 101 <?php 102 session_start(); 103 if(!isset($_SESSION["username"])){ 104 header("Location: login.php"); 105 exit(); } 106 ?> 107 <?php 108 //include auth.php file on all secure pages 109 include("auth.php"); 110 ?> 111 <!DOCTYPE html> 112 <html> 113 <head> 114 <meta charset="utf-8"> 115 <title>Welcome Home</title> 116 <link rel="stylesheet" href="css/style.css" /> 117 </head> 118 <body> 119 <div class="form"> 120 <p>Welcome <?php echo $_SESSION['username']; ?>!</p> 121 <p>This is secure area.</p> 122 <p><a href="dashboard.php">Dashboard</a></p> 123 <a href="logout.php">Logout</a> 124 </div> 125 </body> 126 <?php 127 require('db.php'); 128 include("auth.php"); 129 ?> 130 <!DOCTYPE html> 131 <html> 132 <head> 133 <meta charset="utf-8"> 134 <title>Dashboard - Secured Page</title> 135 <link rel="stylesheet" href="css/style.css" /> 136 </head> 137 <body> 138 <div class="form"> 139 <p>Dashboard</p> 140 <p>This is another secured page.</p> 141 <p><a href="index.php">Home</a></p> 142 <a href="logout.php">Logout</a> 143 </div> 144 </body> 145 </html> 146 <?php 147 session_start(); 148 // Destroying All Sessions 149 if(session_destroy()) 150 { 151 // Redirecting To Home Page 152 header("Location: login.php"); 153 } 154 ?> 155 body { 156 font-family:Arial, Sans-Serif; 157 } 158 .clearfix:before, .clearfix:after{ 159 content: ""; 160 display: table; 161 } 162 .clearfix:after{ 163 clear: both; 164 } 165 a{ 166 color:#0067ab; 167 text-decoration:none; 168 } 169 a:hover{ 170 text-decoration:underline; 171 } 172 .form{ 173 width: 300px; 174 margin: 0 auto; 175 } 176 input[type='text'], input[type='email'], 177 input[type='password'] { 178 width: 200px; 179 border-radius: 2px; 180 border: 1px solid #CCC; 181 padding: 10px; 182 color: #333; 183 font-size: 14px; 184 margin-top: 10px; 185 } 186 input[type='submit']{ 187 padding: 10px 25px 8px; 188 color: #fff; 189 background-color: #0067ab; 190 text-shadow: rgba(0,0,0,0.24) 0 1px 0; 191 font-size: 16px; 192 box-shadow: rgba(255,255,255,0.24) 0 2px 0 0 inset,#fff 0 1px 0 0; 193 border: 1px solid #0164a5; 194 border-radius: 2px; 195 margin-top: 10px; 196 cursor:pointer; 197 } 198 input[type='submit']:hover { 199 background-color: #024978; 200 }
我尝试过的：
我尝试了所有方法，但没有丢失括号
解决方案1
你看过 88 号线吗？
这是：
<?php } ?>
解决方案2
查看错误消息和您的代码：
Unmatched '}' in C:\xampp\htdocs\new folder\registration.php on line 88
}else{
echo "<div class='form'>
<h3>Username/password is incorrect.</h3>
<br/>Click here to <a href='login.php'>Login</a></div>";
}
}else{
?>
这并不意味着它必须缺少“}”，它可能意味着它是一个额外的“}”。
那么为什么前面有两个“}” else？
您应该预料到每天都会遇到语法错误，在编码时可能一天会出现很多次 – 无论我们有多少经验，我们都会遇到这种情况！ 有时，我们会拼错变量或关键字； 有时我们忘记关闭字符串或代码块。 有时，猫会走过你的键盘并输入一些非常奇怪的东西。 有时我们只是忘记了方法调用需要多少个参数。
我们都会犯错。
因为我们都这样做，所以我们都必须修复语法错误 – 自己学习如何修复它们比等待别人为您修复它们要快得多！ 因此，花一点时间学习如何阅读错误消息，以及如何根据编译器告诉您的错误内容来解释您的代码 – 这确实是有帮助的！
所以请阅读以下内容： 如何编写代码来解决问题，初学者指南第 2 部分：语法错误[^] – 下次遇到编译错误时它应该会对您有所帮助！
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