Question

即使该语句没有可见的错误，我在PHP的if语句上也会收到类似的错误：解析错误：语法错误，第11行的CODE中出现意外的'if'（T_IF）解析CODE时出错

这是我的代码：

    <?php
    // Include config file
    require_once "config.php";
     
    // Define variables and initialize with empty values
    $username = $password = $confirm_password = $email = "";
    $username_err = $password_err = $confirm_password_err = "";
    $emailweb = "@"
     
    // Processing form data when form is submitted
    if($_SERVER["REQUEST_METHOD"] == "POST"){

 
    // Validate username
    if(empty(trim($_POST["username"]))){
        $username_err = "Please enter a username.";
    } else{
        // Prepare a select statement
        $sql = "SELECT id FROM users WHERE username = ?";
        
        if($stmt = mysqli_prepare($link, $sql)){
            // Bind variables to the prepared statement as parameters
            mysqli_stmt_bind_param($stmt, "s", $param_username);
            
            // Set parameters
            $param_username = trim($_POST["username"]);
            
            // Attempt to execute the prepared statement
            if(mysqli_stmt_execute($stmt)){
                /* store result */
                mysqli_stmt_store_result($stmt);
                
                if(mysqli_stmt_num_rows($stmt) == 1){
                    $username_err = "This username is already taken.";
                } else{
                    $username = trim($_POST["username"]);
                }
            } else{
                echo "Oops! Something went wrong. Please try again later.";
            }

            // Close statement
            mysqli_stmt_close($stmt);
        }
    }
    
    // Validate password
    if(empty(trim($_POST["password"]))){
        $password_err = "Please enter a password.";     
    } elseif(strlen(trim($_POST["password"])) < 6){
        $password_err = "Password must have atleast 6 characters.";
    } else{
        $password = trim($_POST["password"]);
    }
    
    if(empty(trim($_POST["email"]))){
        $email_err = "Please Enter A Email."
    } else{
        $email = trim($_POST["email"]);
    }
    
    // Validate confirm password
    if(empty(trim($_POST["confirm_password"]))){
        $confirm_password_err = "Please confirm password.";     
    } else{
        $confirm_password = trim($_POST["confirm_password"]);
        if(empty($password_err) && ($password != $confirm_password)){
            $confirm_password_err = "Password did not match.";
        }
    }
    
    // Check input errors before inserting in database
    if(empty(trim($_POST["email"]))){
        $password_err = "Please enter a email.";     
    } elseif(strpos($email,$emailword) == false){
        $email_err = "Invalid Email.";
    } else{
        $emaIL= trim($_POST["email"]);
    }
        
        // Prepare an insert statement
        $sql = "INSERT INTO users (username, password,email) VALUES (?, ?,?)";
         
        if($stmt = mysqli_prepare($link, $sql)){
            // Bind variables to the prepared statement as parameters
            mysqli_stmt_bind_param($stmt, "ss", $param_username, $param_password);
            
            // Set parameters
            $param_username = $username;
            $param_password = password_hash($password, PASSWORD_DEFAULT); // Creates a password hash
            
            // Attempt to execute the prepared statement
            if(mysqli_stmt_execute($stmt)){
                // Redirect to login page
                header("location: login.php");
            } else{
                echo "Something went wrong. Please try again later.";
            }

            // Close statement
            mysqli_stmt_close($stmt);
        }
    }
    
    // Close connection
    mysqli_close($link);
    }
    ?>

 
<!DOCTYPE html>
<html lang="en">
<head>
    
    <meta name="viewport" content="width=device-width,initial-scale=1"/>
    <meta charset="UTF-8">
    <title>Sign Up</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body{ font: 14px sans-serif; }
        .wrapper{ width: 350px; padding: 20px; }
    </style>
</head>
<body>

<div class="wrapper">

    <h2>Sign Up</h2>
    <p>Please fill this form to create an account.</p>
    <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
        <div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
            <label>Username</label>
            <input type="text" name="username" class="form-control" value="<?php echo $username; ?>">
            <span class="help-block"><?php echo $username_err; ?></span>
        </div>    
        <div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
            <label>Password</label>
            <input type="password" name="password" class="form-control" value="<?php echo $password; ?>">
            <span class="help-block"><?php echo $password_err; ?></span>
        </div>
        <div class="form-group <?php echo (!empty($email)) ? 'has-error' : ''; ?>">
            <label>Email</label>
            <input type="email" name="email" class="form-control" value="<?php echo $email; ?>">
            <span class="help-block"><?php echo $email; ?></span>
        </div>
        <div class="form-group <?php echo (!empty($confirm_password_err)) ? 'has-error' : ''; ?>">
            <label>Confirm Password</label>
            <input type="password" name="confirm_password" class="form-control" value="<?php echo $confirm_password; ?>">
            <span class="help-block"><?php echo $confirm_password_err; ?></span>
        </div>
        <div class="form-group">
            <input type="submit" class="btn btn-primary" value="Submit">
        

        <input type="reset" class="btn btn-default" value="Reset">
                </div>
                <p>Already have an account? <a href="login.php">Login here</a>.</p>
            </form>
        </div>    
    </body>
    </html>

请帮助，因为这是一个非常重要的问题 此错误很奇怪，我不知道如何处理，所以在此先感谢

Answer 1

您在上一行中缺少分号。

$emailweb = "@";

即使语句结构正确，为什么我在PHP的if语句中也会出错

1 个答案: