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我想要做的是運行一個簡單的PHP腳本來檢查遊戲服務器是否在線，並從中獲取一些信息。我在WAMP服務器的本地盒子上運行完全相同的腳本，其中我剛剛取消註釋php_openssl.dll和php_sockets.dll，並且 - 瞧 - 它按預期工作。Php套接字，Apache和CentOS 6.3授予權限被拒絕
但後來我們的生產環境！我通常與Debian合作，但是我們的主機決定在我們的專用服務器上安裝CentOS，因爲NIC在Debian中失敗了，從此以後它一直是個麻煩。
我克服了一些問題，並且留下了這個問題：我該如何修復PHP套接字？我讀，我需要的PHP常見，所以我安裝了這個用：
# yum install php-common
然後我檢查phpinfo()和我得到這個
'./configure' '--with-openssl' '--enable-sockets' ...
因此，這看起來不錯，如果你問我，無論是OpenSSL和套接字已安裝並且應該正常工作，但事實並非如此。我發現這個劇本在這裏堆棧溢出：
<?php
//just in case
if (!extension_loaded('sockets')) {
die('The sockets extension is not loaded.');
}
echo '<p><strong>Establishing connection...</strong></p>';
$socket = socket_create(AF_INET,SOCK_STREAM,0);
if (!socket_connect($socket, "stackoverflow.com", 80))
{
die('Socket error : '.socket_strerror(socket_last_error()));
}
echo '<p><strong>Connection successful!</strong></p>';
$request = join("\n",array(
"GET/HTTP/1.1",
"Connection: close",
"Host: stackoverflow.com",
"User-Agent: Mozilla/5.0 (Windows NT 6.1)",
"Accept: text/html,*/*;q=0.8",
""));
socket_write($socket,$request,strlen($request));
$response = socket_read($socket,2048);
echo "<p><strong>This is the received data : </strong></p>";
echo '<pre>'.htmlentities($response).'</pre>';
socket_close($socket);
這是什麼驚喜輸出我徹底：
Establishing connection...
Connection successful!
This is the received data :
HTTP/1.0 408 Request Time-out
Cache-Control: no-cache
Connection: close
Content-Type: text/html
<html><body><h1>408 Request Time-out</h1>
Your browser didn't send a complete request in time.
</body></html>
但儘管如此，我的腳本不能正常工作？ :( 我有殘疾iptables在
# service iptables stop
公正，以確保它不是一個防火牆的問題會發生什麼情況如下，當我打開網頁，而不是一個遊戲服務器的名字，我得到這樣的：
警告：socket_connect（）：無法連接[13]：權限/var/www/test.php否認第9行< < <
這是我使用的代碼，它是開源FR om xPaw，所以我不記得它：
<?php
function queryserver($IP, $Port = 25565, $Timeout = 2)
{
$Socket = Socket_Create(AF_INET, SOCK_STREAM, SOL_TCP);
Socket_Set_Option($Socket, SOL_SOCKET, SO_SNDTIMEO, array('sec' => (int)$Timeout, 'usec' => 0));
Socket_Set_Option($Socket, SOL_SOCKET, SO_RCVTIMEO, array('sec' => (int)$Timeout, 'usec' => 0));
if($Socket === FALSE || Socket_Connect($Socket, $IP, (int)$Port) === FALSE)
{
return FALSE;
}
Socket_Send($Socket, "\xFE\x01", 2, 0);
$Len = @Socket_Recv($Socket, $Data, 256, 0);
Socket_Close($Socket);
if($Len < 4 || $Data[ 0 ] !== "\xFF")
{
return FALSE;
}
$Data = SubStr($Data, 3);
$Data = iconv('UTF-16BE', 'UTF-8', $Data);
if($Data[ 1 ] === "\xA7" && $Data[ 2 ] === "\x31")
{
$Data = Explode("\x00", $Data);
return Array(
'HostName' => $Data[ 3 ],
'Players' => IntVal($Data[ 4 ]),
'MaxPlayers' => IntVal($Data[ 5 ]),
'Protocol' => IntVal($Data[ 1 ]),
'Version' => $Data[ 2 ]
);
}
$Data = Explode("\xA7", $Data);
return Array(
'HostName' => SubStr($Data[ 0 ], 0, -1),
'Players' => isset($Data[ 1 ]) ? IntVal($Data[ 1 ]) : 0,
'MaxPlayers' => isset($Data[ 2 ]) ? IntVal($Data[ 2 ]) : 0,
'Protocol' => 0,
'Version' => '1.3'
);
}
$test = queryserver('SERVERADDRESSHERE'); // (i tried multiple, which are all working @wamp)
$echo = $test['HostName'] . "<<< <br />";
echo $echo;
爲什麼使用套接字？ – Blacksonic 2013-02-10 15:43:51