//简单的钩子实现例子
class tool{
  public static function main($class, $fun, $data = ''){
    //前置公共操作
    $con = new $class;
    $con->$fun($data);
    //后置公共操作
  }
}
class a{
  function b($data){
    echo '我是方法b';
  }
}
class c{
  function d($data){
    echo '我是方法d';
  }
}
//钩子调用
tool::main('a','b','222');

class Ar_Sms{
  const LANCHUANG = 1;//通道1
  const ALIDAYU = 2; //通道2
  private $type;
  private $chuanglan_config = array(//通道1配置项
    'api_send_url'=>'xxxx',
    'api_balance_query_url'=> 'xxxxx',
    'api_account'=> 'xxxx',
    'api_password'=> 'xxxxx',
  );
  private $alidayu_config = array(//通道2配置项
    'api_key'=> 'xxxx',
    'api_id'=> 'xxxxx',
    'api_send_url'=> 'xxxxx',
  );
  public function __construct($type=1){
    switch($type){
      case self::LANCHUANG:
        $this->type = $type;break;
      case self::ALIDAYU:
        $this->type = $type;break;
      default:
        $this->type = false;
    }
  }
  //对外抛出的发送方法
  public function sendSms($mobile, $msg){
    switch($this->type){
      case self::LANCHUANG:
        return $this->_sendCL($mobile, $msg);
      case self::ALIDAYU:
        return $this->_sendAL($mobile, $msg);
      default:
        return false;
    }
  }
  //通道1发送方法
  private function _sendCL($mobile, $msg, $needstatus = 'false', $extno = ''){
    $postArr = array (
      'account' => $this->chuanglan_config['api_account'],
      'pswd' => $this->chuanglan_config['api_password'],
      'msg' => $msg,
      'mobile' => $mobile,
      'needstatus' => $needstatus,
      'extno' => $extno
    );
    $result = $this->_curlPost( $this->chuanglan_config['api_send_url'] , $postArr);
    $result = $this->_execResult($result);
    return $result[1] == 0 "/[,\r\n]/",$result);
    return $result;
  }
  /**
   * 处理返回值json
   *
   */
  private function _jsonResult($result){
    $result=json_decode($result, true);
    return $result;
  }
  /**
   * 通过CURL发送HTTP请求
   * @param string $url //请求URL
   * @param array $postFields //请求参数
   * @return mixed
   */
  private function _curlPost($url,$postFields){
    $postFields = http_build_query($postFields);
    $ch = curl_init ();
    curl_setopt ( $ch, CURLOPT_POST, 1 );
    curl_setopt ( $ch, CURLOPT_HEADER, 0 );
    curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
    curl_setopt ( $ch, CURLOPT_URL, $url );
    curl_setopt ( $ch, CURLOPT_POSTFIELDS, $postFields );
    $result = curl_exec ( $ch );
    curl_close ( $ch );
    return $result;
  }
}
$ob = new Ar_Sms(Ar_Sms::ALIDAYU);//通道1发送
$res = $ob->sendSms('xxxxx','xxxxxx');
var_dump($res);
$ob = new Ar_Sms(Ar_Sms::LANCHUANG);//通道2发送
$res = $ob->sendSms('xxxxx','xxxxxx');
var_dump($res);