用文件存储制作简单的留言板

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[PHP] 纯文本查看 复制代码

<?php     $filename = "message.txt";           if (isset($_POST["submit"])){                   $message = $_POST["username"]."||".$_POST["title"]."||".$_POST["content"]."[n]";                   write_message($filename, $message);     }       // 将留言写入文件     function write_message($filename, $message){         $file = fopen($filename, "a");         fwrite($file, $message);         fclose($file);     }     // 将留言从文件中读取出来，并解析成单条输出     function read_message($filename){         $message = file_get_contents($filename);         $message = rtrim($message, "[n]");         $array = explode("[n]", $message);         foreach($array as $msg){             list($username, $title, $message) = explode("||", $msg);             echo "用户：{$username}<br/>";             echo "标题：{$title}<br/>";             echo "内容：{$message}<br/>";             echo "<hr>";         }     } ?> <!--制作一个简单的留言输入控件--> <form action="" method="POST">     用户：<input type="text" name="username" value=""/><br/>     标题：<input type="text" name="title" value="" /><br/>     内容：<textarea cols="40" rows="4" name="content"></textarea><br/>     <input type="submit" name="submit" value="留言"/> </form> <hr>   <?php     // 输出留言     if (file_exists($filename)) read_message($filename); ?>