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禁止单个IP
<?php
//加IP访问限制
if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')) {
$userip = getenv('HTTP_CLIENT_IP');
} elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'),'unknown')) {
$userip = getenv('HTTP_X_FORWARDED_FOR');
} elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'),'unknown')) {
$userip = getenv('REMOTE_ADDR');
} elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'],'unknown')) {
$userip = $_SERVER['REMOTE_ADDR'];
}
$banned_ip = array (
"127.0.0.1",
"203.0.0.1",
"56.12.50.65",
"192.168.1.88"
);
if (in_array($userip,$banned_ip))
{
die ("Your IP is block to connect !");
}
echo "编程之家测试";
?>
禁止IP段
<div class="codetitle"><a style="CURSOR: pointer" data="87896" class="copybut" id="copybut87896" onclick="doCopy('code87896')"> 代码如下:<div class="codebody" id="code87896">
<?php
//加IP访问限制
if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')) {
$userip = $_SERVER['REMOTE_ADDR'];
}
$ban_range_low=ip2long("217.0.0.0"); //ip段上
$ban_range_up=ip2long("217.255.255.255");//ip段尾
$ip=ip2long($userip]);
if ($ip>$ban_range_low && $ip<$ban_range_up)
{
print "Banned";
exit();
}
?>
（编辑：李大同）
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