12.3.4 简单留言版
test.php
<?php
header("Content-Type:text/html;charset=utf8");
$filename = "message.txt";
//如果用户提交了， 就写入文件， 按一定格式写入
if(isset($_POST['dosubmit'])) {
//字段的分隔使用||, 行的分隔使用[n]
$mess = "{$_POST['username']}||".time()."||{$_POST['title']}||{$_POST['content']}[n]";
writemessage($filename, $mess);
}
if(file_exists($filename)) {
readmessage($filename);
}
function writemessage($filename, $mess) {
$fp = fopen($filename, "a");
fwrite($fp, $mess);
fclose($fp);
}
function readmessage($filename) {
$mess = file_get_contents($filename);
$mess = rtrim($mess, "[n]");
$arrmess = explode("[n]", $mess);
foreach($arrmess as $m) {
list($username, $dt ,$title, $content) = explode("||", $m);
echo "<b>{$username}</b>, ".date("Y-m-d H:i").": <i>{$title}</i>, <u>{$content}</u><br><hr><br>";
}
}
?>
<form action="message.php" method="post">
用户: <input type="text" name="username" value="" /><br>
标题：<input type="text" name="title" value="" /><br>
内容：<textarea name="content" cols="40" rows="4"></textarea><br>
<input type="submit" name="dosubmit" value="留言" /><br>
</form>
