我想在我的网站上安装一个php whois域可用性检查脚本，我在某处找到。
它有一个whois_class.php文件，它允许我在"win"和"linux"模式之间切换。
当我打开"win"模式时，它在我的本地主机中工作正常，因为我使用的是 Windows 操作系统。
但是当我将其上传到服务器时，它停止工作，因为我的服务器是 Linux 服务器。
所以我必须将其切换到"linux"模式并重新上传whois_class.php.这应该工作正常，但对于 linux 模式，脚本的开发人员使用了我的主机出于安全目的禁用exec()功能。
所以，我想唯一的选择是将我的服务器平台从Linux更改为Windows。但是，那将是一团糟。
我一直在寻找一种方法，如何使用此脚本在我的 Linux 服务器上流畅运行，就像它在 Windows 操作系统中的本地主机上运行一样。对脚本进行任何更改或修改以使其运行将不胜感激。
whois_class.php：
<?php
class Whois_domain {
var $possible_tlds;
var $whois_server;
var $free_string;
var $whois_param;
var $domain;
var $tld;
var $compl_domain;
var $full_info;
var $msg;
var $info;
var $os_system = "win"; // switch between "linux" and "win"
function Whois_domain() {
$this->info = "";
$this->msg = "";
}
function process() {
if ($this->create_domain()) {
if ($this->full_info == "yes") {
$this->get_domain_info();
} else {
if ($this->check_only() == 1) {
$this->msg = "<p style='font-size: 16px'>The domain name: <font color='#000'>".$this->compl_domain."</font> is <font color='#2ec62e'>available</font>.</p>";
return true;
} elseif ($this->check_only() == 0) {
$this->msg = "<p style='font-size: 16px'>The domain name: <font color='#000'>".$this->compl_domain."</font> is <font color='red'>registered</font>.</p>";
return false;
} else {
$this->msg = "<p style='font-size: 16px'>There was something wrong, try it again.</p>";
}
}
} else {
$this->msg = "<p style='font-size: 16px'>Only letters, numbers and hyphens (-) are valid!</p>";
}
}
function check_entry() {
if (preg_match("/^([a-z0-9]+(-?[a-z0-9]*)){2,63}$/i", $this->domain)) {
return true;
} else {
return false;
}
}
function create_tld_select() {
$menu = "<select id="tld" name="tld" style="margin-left:0; width: 100px; margin-top: 20px; border-radius: 5px">n";
foreach ($this->possible_tlds as $val) {
$menu .= " <option value="".$val.""";
$menu .= (isset($_POST['tld']) && $_POST['tld'] == $val) ? " selected="selected">" : ">";
$menu .= $val."</option>n";
}
$menu .= "</select>n";
return $menu;
}
function create_domain() {
if ($this->check_entry()) {
$this->domain = strtolower($this->domain);
$this->compl_domain = $this->domain.".".$this->tld;
return true;
} else {
return false;
}
}
function check_only() {
$data = $this->get_whois_data();
if (is_array($data)) {
$found = 0;
foreach ($data as $val) {
if (preg_match('/'.$this->free_string.'/', $val)) {
$found = 1;
}
}
return $found;
} else {
$this->msg = "<p style='font-size: 16px'>Error, please try it again.</p>";
}
}
function get_domain_info() {
if ($this->create_domain()) {
$data = ($this->tld == "nl") ? $this->get_whois_data(true) : $this->get_whois_data();
//print_r($data);
if (is_array($data)) {
foreach ($data as $val) {
if (eregi($this->free_string, $val)) {
$this->msg = "<p style='font-size: 16px'>The domain name: <font color='#000'>".$this->compl_domain."</font> is <font color='#2ec62e'>available</font>.</p>";
$this->info = "";
break;
}
$this->info .= $val;
}
} else {
$this->msg = "<p style='font-size: 16px'>Error, please try it again.</p>";
}
} else {
$this->msg = "<p style='font-size: 16px'>Only letters, numbers and hyphens (-) are valid!</p>";
}
}
function get_whois_data($empty_param = false) {
// the parameter is new since version 1.20 and is used for .nl (dutch) domains only
if ($empty_param) {
$this->whois_param = "";
}
if ($this->tld == "de") $this->os_system = "win"; // this tld must be queried with fsock otherwise it will not work
if ($this->os_system == "win") {
$connection = @fsockopen($this->whois_server, 43);
if (!$connection) {
unset($connection);
$this->msg = "<p style='font-size: 16px'>Can't connect to the server!</p>";
return;
} else {
sleep(2);
fputs($connection, $this->whois_param.$this->compl_domain."rn");
while (!feof($connection)) {
$buffer[] = fgets($connection, 4096);
}
fclose($connection);
}
} else {
$string = "whois -h ".$this->whois_server." "".$this->whois_param.$this->compl_domain.""";
$string = str_replace (";", "", $string).";";
exec($string, $buffer);
}
if (isset($buffer)) {
//print_r($buffer);
return $buffer;
} else {
$this->msg = "<p style='font-size: 16px'>Can't retrieve data from the server!</p>";
}
}
}
?>
问题就在这里
if ($this->os_system == "win") {
$connection = @fsockopen($this->whois_server, 43);
if (!$connection) {
unset($connection);
$this->msg = "<p style='font-size: 16px'>Can't connect to the server!</p>";
return;
} else {
sleep(2);
fputs($connection, $this->whois_param.$this->compl_domain."rn");
while (!feof($connection)) {
$buffer[] = fgets($connection, 4096);
}
fclose($connection);
}
} else {
$string = "whois -h ".$this->whois_server." "".$this->whois_param.$this->compl_domain.""";
$string = str_replace (";", "", $string).";";
exec($string, $buffer);
}
我的主机禁用了功能
system,exec,shell_exec,passthru,popen,proc_open,pcntl_exec,highlight_file,show_source,symlink,link,posix_getpwuid,posix_getpwnam,posix_getgrgid,posix_getgrnam,posix_kill,posix_mkfifo,posix_getrlimit
有很多与程序执行相关的函数。但是，您应该检查设置中禁用了哪些其他功能：
var_dump(ini_get("disable_functions"));