错误 PHP "Blank line found at end of control structure"

Question

我做了一个简单的发帖系统。但是在 if isset 我做到了，一直说 Blank line found at end of control structure 但是我真的找不到解决方案并且已经尝试了很多选项，比如移动右括号等。 错误在第 26 行在这部分代码中：


        if (isset($_POST['like'])) {
            $id = $_POST['like'];
            $query2 = "UPDATE `posts` SET `likes` = likes + 1 WHERE id = '$id'";
            $run = $conn->query($query2);
        }

如果有人知道这个问题的解决方法，我将不胜感激！

    <head>
        <link rel="stylesheet" type="text/css" href="style.css">
    </head>

    <body>
    <?php

    try {
        include 'connection.php';
        $query = $conn->query('SELECT * FROM auteurs INNER JOIN posts ON auteurs.id = posts.auteur_id ORDER BY posts.likes DESC');    
            
        # Haal hier alle posts uit de data base op.
        ?>

    <div class="container">
    <div id='header'>
            <h1>Foodblog</h1>
            <a href='new_post.php'><button>Nieuwe post</button></a>
</span>

    </div>
        <?php
        if (isset($_POST['like'])) {
            $id = $_POST['like'];
            $query2 = "UPDATE `posts` SET `likes` = likes + 1 WHERE id = '$id'";
            $run = $conn->query($query2);
        }
        
        foreach ($query as $info) {
            ?> 
            <div class='post'>
                <div class='header'>
                <h2><?php echo  $info['titel']; ?></h2>
                <img src="<?php echo $info['img_url']; ?>" />
            </div>
                <span class=right>
                <form action='index.php' method='post'>
                <button type='submit'value=<?php echo $info['id']; ?> name='like'>
                <?php echo $info['likes']; ?> likes
                </button>
            </form>
            </span>
                <span class='details'>Geschreven op: <?php echo $info['datum']; ?>  door: <?php echo $info['auteur']; ?>
                </span>
                <p><?php echo $info['inhoud']; ?> </p>
            </div>
            <?php
        }
    } catch (Exception $query) {
        echo $query->getMessage();
    }
    ?>
    </div>
    </body>
</html>

Answer 1

你确定是第 26 行而不是第 10 行吗？有1个空行

<?php

    try {
        include 'connection.php';
        $query = $conn->query('SELECT * FROM auteurs INNER JOIN posts ON auteurs.id = posts.auteur_id ORDER BY posts.likes DESC');    
            
        # Haal hier alle posts uit de data base op.
        ?>

并且您的代码受到 sql 注入

$query2 = "UPDATE `posts` SET `likes` = likes + 1 WHERE id = '$id'";
            $run = $conn->query($query2);

在这里您可以找到更多信息来防止黑客入侵 https://www.php.net/manual/en/security.database.sql-injection.php

错误 PHP "Blank line found at end of control structure"

ERROR PHP "Blank line found at end of control structure"

php

mysql

pdo

control-structure