我正试图为我制作的聊天创建一个禁止系统，它有一个单独的"控制台"，只有管理员才能看到。我使用的是Mac OS 10.11.4，我是它的所有者，我使用的Mamp带有php版本5.6.0
Ban.php
<?php
$ban = $_POST['ban'];
$mybfile = fopen("banned.txt", 'a');
$txtb = ($ban." , ");
//Makes sure ip banned it not an admins
if (isset($_POST['ban'])) {
//example ip addresses
if ($ban === '1.1.1.1' || 192.168.1.132) {
echo 'Can''t ban an Admin';
} else {
echo 'IP banned';
fwrite($mybfile, $txtb);
fclose($mybfile);
}
}
?>
<style>
.ban {
background-color: black;
width:30em;
height:5em;
color: #7ACC52;
}
.buttonBAN {
border:1px solid black;
width: 85px;
height: 55px;
background-color: white;
color: black;
position: absolute;
}
</style>
<body>
<form method="POST">
BanCMD<br />
<input type="text" name="ban" class="ban">
<input type="submit" value="Enter" class="buttonBAN">
</form>
</body>
Chat.php：
<?php
require "blocked.php";
require "connect.inc.php";
require "core.inc.php";
require "commands.php";
$sent = $_POST['chat'];
$myfile = fopen("chat.txt", 'a') or die("Unable to open file!");
$txt = ($sent."'n");
$first = getuserfield('username');
$active = ($first.":".$ip_addr);
$activef = fopen("ip-user.txt", 'a');
$myFile = "domains/domain_list.txt";
if (loggedin()) {
echo 'Welcome, '.$first,'<br />';
if ($first != 'SnR' || 'Koi') {
fwrite($activef, $active."'n"."=");
}
} else if (!loggedin()) {
die('Not logged in');
}
if (isset($_POST['chat'])) {
if (!empty($sent)) {
fwrite($myfile, $first.': '.$txt.'=');
fclose($myfile);
} else if (empty($sent)) {
echo 'Cant send an empty message','<br />';
}
}
$file = "chat.txt";
$linecount = 0;
$handle = fopen($file, "r");
while(!feof($handle)){
$line = fgets($handle);
$linecount++;
}
fclose($handle);
if ($linecount > 49) {
unlink($file);
} else {
echo 'Line count: '.$linecount,'<br />';
}
echo 'Chat will reset at 50 lines','<br />';
echo 'Your IP:';
echo $ip_addr,'<br />';
?>
<html>
<head>
</head>
<body>
<!-- <a href='active.txt'>Online users</a><br /> -->
<iframe id='reload' src='refresh.php'>
<fieldset class="field">
<div id="list"><p><?php
$filename = 'chat.txt';
$handle = fopen($filename, 'r');
$detain = fread($handle, filesize($filename));
$chat_array = explode('=', $detain);
foreach($chat_array as $chat) {
echo $chat.'<br />';
}
?></p></div>
</fieldset>
</iframe>
<form action="chat.php" method="POST">
<input type="text" name="chat" class="textbox">
<input type="submit" value="Send" class="button">
</form>
</body>
</html>
<?php
if ($first == 'SnR' && 'Koi') {
include 'AdminCMD.php';
include 'ban.php';
?>
<iframe id='reload' src='refresh2.php' class="field2">
<fieldset class="field">
</fieldset>
</iframe>
<?php
}
?>
问题是，在你输入之前，一切都很好，无论你把什么放进盒子里，输出总是"不能禁止管理员"，这意味着它不会写入给定的文件
谢谢你的帮助。
您的代码包含一个错误，导致无法写入文件。如果没有发送post数据，PHP代码的第一行$ban = $_POST['ban'];可能会失败。您需要首先检查是否设置了$_POST['ban']。您的代码的固定版本可以在下面找到。
<?php
//Makes sure ip banned it not an admins
if (isset($_POST['ban'])) {
$ban = $_POST['ban'];
$mybfile = fopen("banned.txt", 'a');
$txtb = ($ban." , ");
if ($ban === '1.1.1.1') {
echo 'Can''t ban an Admin';
} else {
echo 'IP banned';
fwrite($mybfile, $txtb);
fclose($mybfile);
}
}
?>
<style>
.ban {
background-color: black;
width:30em;
height:5em;
color: #7ACC52;
}
.buttonBAN {
border:1px solid black;
width: 85px;
height: 55px;
background-color: white;
color: black;
position: absolute;
}
</style>
<body>
<form method="POST">
BanCMD<br />
<input type="text" name="ban" class="ban">
<input type="submit" value="Enter" class="buttonBAN">
</form>
</body>
当我运行您的代码时，它返回未定义的索引ban，您可以尝试一下，并确保什么对您不起作用。
<?php
$ban = isset($_POST['ban']) ? $_POST['ban'] : null;
$mybfile = fopen("banned.txt", 'a');
$txtb = ($ban." , ");
//Makes sure ip banned it not an admins
if(isset($ban)){
if ($ban === '1.1.1.1') {
echo 'Can''t ban an Admin';
} else {
echo 'IP banned';
fwrite($mybfile, $txtb);
fclose($mybfile);
}
}
?>
<style>
.ban {
background-color: black;
width:30em;
height:5em;
color: #7ACC52;
}
.buttonBAN {
border:1px solid black;
width: 85px;
height: 55px;
background-color: white;
color: black;
position: absolute;
}
</style>
<body>
<form method="POST">
BanCMD<br />
<input type="text" name="ban" class="ban">
<input type="submit" value="Enter" class="buttonBAN">
</form>
</body>