php写网页留言界面
<?php
$file = fopen("message.txt","a"); //向message.txt中追加
if (isset($_REQUEST["message"])){
$message=$_REQUEST["message"];
$message=trim($message); //将两端的空白去掉
if ($message!=null&&strlen($message!=false)){ //判断值是否为空
fwrite($file,"\n".$message); //不为空则添加换行符
}
}
fclose($file); //关闭文档
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<ul>
<?php
$f= fopen("message.txt","r");
while (feof($f)==false){
$line=fgets($f);
echo "<li>$line</li>";
}
?>
</ul>
<form action="" >
<textarea name="message" id="" cols="30" rows="10"></textarea>
<input type="submit" name="" value="留言">
</form>
</body>
</html>
