Question

我创建了这个网站http://mihaialin793.esy.es/new-homepage/portofolio/physics/，其中有一个评论表单。问题是，当我按下提交时，在11条评论之后，HTML变得混乱，最后的评论被隐藏或删除，我无法弄明白。

PHP代码：

<?php
    if($_POST['submit']){

        print "<h1>Your comment has been sent!</h1>";

        $name = $_POST['name'];
        $comment = $_POST['message'];

        #Get old comments
        $old = fopen("comment.txt", "r+t");
        $old_comments = fread($old, 1024);

        #Delete everything, write down new and old comments
        $write = fopen("comment.txt", "w+");
        $string = "<div class='comment'><span class='name'>".$name.":</span><span class='comm'>".$comment."</span></div><br>\n".$old_comments;
        fwrite($write, $string);
        fclose($write);
        fclose($old);
        header('Location: index.php');
    }

    #Read comments
    $read = fopen("comment.txt", "r+t");
    echo "<h2 class='other_comm'>Other comments</h2>".fread($read, 1024);
    fclose($read);
?>

html在网站上，但我也会在这里告诉他们：

HTML：

<form action="" method="post">
    <h2>Post your comment</h2>
    <input type="text" name="name" placeholder="Name" required><br />
    <textarea name="message" placeholder="Comment"></textarea><br />
    <input type="submit" name="submit" value="Post">
</form>

Answer 1

'fread'方法在你的情况下只输出1024个字节。

而是尝试使用：

echo "<h2 class='other_comm'>Other comments</h2>".fread($read, filesize('comment.txt'));

在11条评论之后，PHP会丢失HTML标记

1 个答案: