linux - PHP domain availability script exec() function alternative -


i want install php whois domain availability check script on website found somewhere.

it has whois_class.php file allows switch between "win" & "linux" mode.

when switch on "win" mode works fine in localhost using windows os.

but when upload server stops working server linux server.

so have switch "linux" mode , re-upload whois_class.php. expected work fine linux mode developer of script has used exec() function host has disabled security purposes.

so, option guess if change server platform linux windows. but, mess.

i looking way how can use script run smoothly on linux server runs on localhost in windows os. change or modification script make run appreciated.

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" , "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> <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> <font color='red'>registered</font>.</p>";                     return false;                 } else {                     $this->msg = "<p style='font-size: 16px'>there wrong, try again.</p>";                 }             }         } else {             $this->msg = "<p style='font-size: 16px'>only letters, numbers , hyphens (-) valid!</p>";         }     }     function check_entry() {         if (preg_match("/^([a-z0-9]+(\-?[a-z0-9]*)){2,63}$/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 $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 $val) {                 if (preg_match('/'.$this->free_string.'/', $val)) {                     $found = 1;                 }             }             return $found;         } else {             $this->msg = "<p style='font-size: 16px'>error, please try again.</p>";         }     }     function get_domain_info() {         if ($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 $val) {                     if (eregi($this->free_string, $val)) {                         $this->msg = "<p style='font-size: 16px'>the domain name: <font color='#000'>".$this->compl_domain."</font> <font color='#2ec62e'>available</font>.</p>";                         $this->info = "";                         break;                     }                     $this->info .= $val;                 }             } else {                 $this->msg = "<p style='font-size: 16px'>error, please try again.</p>";             }         } else {             $this->msg = "<p style='font-size: 16px'>only letters, numbers , hyphens (-) valid!</p>";         }     }     function get_whois_data($empty_param = false) {     // parameter new since version 1.20 , used .nl (dutch) domains         if ($empty_param) {             $this->whois_param = "";         }         if ($this->tld == "de") $this->os_system = "win"; // tld must queried fsock otherwise not work         if ($this->os_system == "win") {             $connection = @fsockopen($this->whois_server, 43);             if (!$connection) {                 unset($connection);                 $this->msg = "<p style='font-size: 16px'>can't connect server!</p>";                 return;             } else {                 sleep(2);                 fputs($connection, $this->whois_param.$this->compl_domain."\r\n");                 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 server!</p>";         }     } } ?>

the problem here

if ($this->os_system == "win") {         $connection = @fsockopen($this->whois_server, 43);         if (!$connection) {             unset($connection);             $this->msg = "<p style='font-size: 16px'>can't connect server!</p>";             return;         } else {             sleep(2);             fputs($connection, $this->whois_param.$this->compl_domain."\r\n");             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);     }

disabled functions host

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

there plenty of functions related program execution. should check other functions disabled on setup:

var_dump(ini_get("disable_functions"));

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