API WHMCS

<?php
class api_whmcs {
 var $url;
 var $username;
 var $password;
 var $result;

 public function __construct($url,$username,$password){
    if(substr($url,0,7) != "http://") $this->url = "http://".$url."/includes/api.php"; else $this->url = $url."/includes/api.php";
    $this->username = $username;
    $this->password = md5($password);
 }

  public function post($postfields){
    $postfields["username"] = $this->username;
    $postfields["password"] = $this->password;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $this->url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 100);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);
    $data = curl_exec($ch);
    curl_close($ch);
    $data = explode(";",$data);
    foreach ($data AS $temp) {
        $temp = explode("=",$temp);
        $results[$temp[0]] = $temp[1];
    }
    $this->result['result'] = $results["result"];
    $this->result['message'] = $results["message"]
 }

 public function query($command){
    if(is_array($command)){
        foreach($command as $query){
            $this->post($query);
        }
    } else {
        $this->post($query);
    }
 }
?>