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tutsplus,那裏你會找到一個教程,指導你完成如何創建一個簡單的網絡聊天的步驟。我試圖遵循所有的說法,但我在測試時發現了一個問題。看起來usermsg沒有被髮布到log.html文件中。PHP消息沒有寫入日誌文件 - tutsplus.com教程
這裏是index.php文件,在這種情況下被命名爲chat.php:
<?php
function loginForm() {
echo '
<div id="loginform">
<form action="chat.php" method="post">
<p>Please enter your name to continue:</p>
<label for="name">Name:</label>
<input type="text" name="name" id="name">
<input type="submit" name="enter" id="enter" value="enter">
</form>
</div>
';
}
if(isset($_POST['enter'])) {
if($_POST['name'] != "") {
$_SESSION['name'] = stripslashes(htmlspecialchars($_POST['name']));
}else {
echo '<span class="error">Please type in a name</span>';
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Basic Chat Service</title>
<meta charset="utf-8">
<link rel="stylesheet" href="style.css" title="style" type="text/css" media="screen" charset="utf-8">
</head>
<body>
<?php
if(!isset($_SESSION['name'])) {
loginForm();
}else{
?>
<div id="wrapper">
<div id="menu">
<div class="welcome">Welcome, <?php echo $_SESSION["name"]; ?></div>
<div class="logout"><a href="#" id="exit">Exit Chat</a></div>
<div style="clear:both;"></div>
</div>
<div id="chatbox"><?php
if(file_exists("log.html") && filesize("log.html") > 0) {
$handle = fopen("log.html", "r");
$contents = fread($handle, filesize("log.html"));
fclose($handle);
echo $contents;
}
?></div>
<form name="message" action="">
<input type="text" name="usermsg" id="usermsg" size="63">
<input type="submit" name="submitmsg" id="submitmsg" value="Send">
</form>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js" charset="utf-8"></script>
<script type="text/javascript">
//jQuery Document
$(document).ready(function() {
$("#exit").click(function() {
var exit = confirm("Are you sure you want to logout?");
if(exit == true) {
window.location = 'chat.php?logout=true';
}
});
$("#submitmsg").click(function() {
var clientmsg = $("#usermsg").val();
console.log(clientmsg);
$.post("post.php", {text: clientmsg});
$("#usermsg").attr("value", "");
return false;
});
function loadLog() {
var oldscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
$.ajax({
url:"log.html",
cache: false,
success: function(html){
$("#chatbox").html(html);
var newscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
if(newscrollHeight > oldscrollHeight) {
$("#chatbox").animate({scrollTop: newscrollHeight}, 'normal');
}
}
});
}
setInterval(loadLog, 2500);
});
</script>
<?php
}
if(isset($_GET['logout'])) {
$fp = fopen("log.html", 'a');
fwrite($fp, '<div class="msgln"><i>User '.$_SESSION['name'].' has left the chat session.</i><br></div>');
fclose($fp);
session_destroy();
header("Location: chat.php");
}
?>
</body>
</html>
這裏是post.php中:
<?php
session_start();
if(isset($_SESSION['name'])) {
$text = $_POST['text'];
$fp = fopen("log.html", 'a');
fwrite($fp, "<div class='msgln'>(".date("g:i A").")<b>".$_SESSION['name']."</b>:".stripslashes(htmlspecialchars($text))."<br></div>");
fclose($fp);
}
?>
我使用甲基苯丙胺和文件位於htdocs文件夾中,所以這不是問題。
在此先感謝您的幫助,如果您需要更多信息,請告知我們。
做過任何基本的調試,就像從檢查的fopen返回值,看看你的文件曾經得到創建/附加?另外,你永遠不會在你的index.php中調用session_start(),這可能意味着你的chat.php只會完全跳過你的文件編寫代碼。 –
這就是失蹤!我多次查看此代碼,並完全忘記了session_start()。把它變成一個答案。 – DAB