几个经常用到的常规class

/**
* 常规类
*/
class Fun
{    //邮件发送函数
    
    static function send_mail($to, $name, $subject = '', $body = '', $attachment = null){

            require EXTEND_PATH."phpmailer/class.phpmailer.php";

            require EXTEND_PATH."phpmailer/class.smtp.php";

            //Config::load('配置文件地址');如果不设置，默认读取当前模块的config.php
            $mail           = new \PHPMailer(); //PHPMailer对象
            $mail->CharSet  = 'UTF-8';
            $mail->IsSMTP();  // 设定使用SMTP服务
            $mail->SMTPDebug  = 0;                     // 关闭SMTP调试功能
            $mail->SMTPAuth   = true;                  // 启用 SMTP 验证功能
            // $mail->SMTPSecure = 'ssl';                 // 使用安全协议(qq需要。163不用)
            $mail->IsHTML(TRUE); // 是否HTML格式邮件
            $mail->Host       = config('THINK_MAIL.SMTP_HOST');  // SMTP 服务器
            $mail->Port       = config('THINK_MAIL.SMTP_PORT'); //端口
            $mail->Username   = config('THINK_MAIL.SMTP_USER'); // SMTP服务器登陆账号
            $mail->Password   = config('THINK_MAIL.SMTP_PASS');  // SMTP服务使用授权码
            $mail->SetFrom(config('THINK_MAIL.FROM_EMAIL'),config('THINK_MAIL.FROM_NAME'));
            //发件人邮箱，名字*SMTP服务器登陆账号必须一致
            $mail->AddReplyTo(config('THINK_MAIL.REPLY_EMAIL'), config('THINK_MAIL.REPLY_NAME'));
            //收件人所看到发件热你的邮箱，名子（差不多跟昵称一回事）
            $mail->Subject    = $subject; //邮件标题
            $mail->MsgHTML($body);//邮件内容
            $mail->AddAddress($to, $name); //收件人邮箱，名字
           return $mail->Send() ? true : $mail->ErrorInfo;
            
        }

    //模拟post调用接口方法 （测试用）
    /**
     *响应信息（post）
     *@url 请求地址
     *@query 请求参数string类型
     */
    static function sock_post($url,$query){

        $info=parse_url($url);

        $fp  =fsockopen($info["host"],80,$errno,$errstr,3);

        $head="POST ".$info['path']." HTTP/1.0\r\n";

        $head.="Host: ".$info['host']."\r\n";

        $head.="Referer: http://".$info['host'].$info['path']."\r\n";

        $head.="Content-type: application/x-www-form-urlencoded\r\n";

        $head.="Content-Length: ".strlen(trim($query))."\r\n";

        $head.="\r\n";

        $head.=trim($query);

        $write=fputs($fp,$head);

        while(!feof($fp)){

            $line[] =fgets($fp);
        }

        $aaa = explode(',', end($line));
        
        $aaa = end($aaa);
        
        return $aaa;

    }

     static function _post($url,$query){

        $info=parse_url($url);

        $fp  =fsockopen($info["host"],80,$errno,$errstr,3);

        $head="POST ".$info['path']." HTTP/1.0\r\n";

        $head.="Host: ".$info['host']."\r\n";

        $head.="Referer: http://".$info['host'].$info['path']."\r\n";

        $head.="Content-type: application/x-www-form-urlencoded\r\n";

        $head.="Content-Length: ".strlen(trim($query))."\r\n";

        $head.="\r\n";

        $head.=trim($query);

        $write=fputs($fp,$head);

        while(!feof($fp)){

           echo  $line =fgets($fp);
        }    

    }

   //密码加密
    static function encrypt($pass){
        $pass = md5(md5($pass).'yang');
        $pass = sha1(strrev($pass));
        return $pass;
    }

    /**
     *minwei 最小维度
     *minjing 最小经度
     *maxwei 最大维度
     *maxjing 最大经度
     */
    static function getAround($lat,$lon,$raidus){

        $PI = 3.14159265;        // 圆周率   

        $latitude = $lat;           

        $longitude = $lon;                       

        $degree = (24901*1609)/360.0;           

        $raidusMile = $raidus;                       

        $dpmLat = 1/$degree;            

        $radiusLat = $dpmLat*$raidusMile;           

        $minLat = $latitude - $radiusLat;           

        $maxLat = $latitude + $radiusLat;   

        $mpdLng = $degree*cos($latitude * ($PI/180));           

        $dpmLng = 1 / $mpdLng;            

        $radiusLng = $dpmLng*$raidusMile;           

        $minLng = $longitude - $radiusLng;           

        $maxLng = $longitude + $radiusLng;          

        $result['minwei']=$minLat;         

        $result['minjing']=$minLng;         

        $result['maxwei']=$maxLat;         

        $result['maxjing']=$maxLng;        

        return $result;  
    }


    /**
    * @desc 根据两点间的经纬度计算距离
    * @param float $lat 纬度值
    * @param float $lng 经度值
    */
    static function getDistance($lat1, $lng1, $lat2, $lng2)
    {
        $earthRadius = 6367000; //地球半径
         
        /*这些学位转换为弧度 用这个公式   */
         
        $lat1 = ($lat1 * pi() ) / 180;
        $lng1 = ($lng1 * pi() ) / 180;
         
        $lat2 = ($lat2 * pi() ) / 180;
        $lng2 = ($lng2 * pi() ) / 180;
         
        $calcLongitude = $lng2 - $lng1;
        $calcLatitude = $lat2 - $lat1;
        $stepOne = pow(sin($calcLatitude / 2), 2) + cos($lat1) * cos($lat2) * pow(sin($calcLongitude / 2), 2);
        $stepTwo = 2 * asin(min(1, sqrt($stepOne)));
        $calculatedDistance = $earthRadius * $stepTwo;
         
        return round($calculatedDistance);
    }


    //首字母排序方法
     public function _getFirstCharter($str){  
        if(empty($str)){return '';}  
        $fchar=ord($str{0});  
        if($fchar>=ord('A')&&$fchar<=ord('z')) return strtoupper($str{0});  
        $s1=iconv('UTF-8','gb2312',$str);  
        $s2=iconv('gb2312','UTF-8',$s1);  
        $s=$s2==$str?$s1:$str;  
        $asc=ord($s{0})*256+ord($s{1})-65536;  
        if($asc>=-20319&&$asc<=-20284) return 'A';  
        if($asc>=-20283&&$asc<=-19776) return 'B';  
        if($asc>=-19775&&$asc<=-19219) return 'C';  
        if($asc>=-19218&&$asc<=-18711) return 'D';  
        if($asc>=-18710&&$asc<=-18527) return 'E';  
        if($asc>=-18526&&$asc<=-18240) return 'F';  
        if($asc>=-18239&&$asc<=-17923) return 'G';  
        if($asc>=-17922&&$asc<=-17418) return 'H';  
        if($asc>=-17417&&$asc<=-16475) return 'J';  
        if($asc>=-16474&&$asc<=-16213) return 'K';  
        if($asc>=-16212&&$asc<=-15641) return 'L';  
        if($asc>=-15640&&$asc<=-15166) return 'M';  
        if($asc>=-15165&&$asc<=-14923) return 'N';  
        if($asc>=-14922&&$asc<=-14915) return 'O';  
        if($asc>=-14914&&$asc<=-14631) return 'P';  
        if($asc>=-14630&&$asc<=-14150) return 'Q';  
        if($asc>=-14149&&$asc<=-14091) return 'R';  
        if($asc>=-14090&&$asc<=-13319) return 'S';  
        if($asc>=-13318&&$asc<=-12839) return 'T';  
        if($asc>=-12838&&$asc<=-12557) return 'W';  
        if($asc>=-12556&&$asc<=-11848) return 'X';  
        if($asc>=-11847&&$asc<=-11056) return 'Y';  
        if($asc>=-11055&&$asc<=-10247) return 'Z';  
        return null;  
   }  

   static function httppost($url,$query){ //用于短信验证
        $postUrl = $url;
        $curlPost = $query;
        $ch = curl_init();//初始化curl
        curl_setopt($ch, CURLOPT_URL,$postUrl);//抓取指定网页
        curl_setopt($ch, CURLOPT_HEADER, 0);//设置header
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
        curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
        curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
        $data = curl_exec($ch);//运行curl
        curl_close($ch);        
        return $data;
   }

}