寫在最前面的話：

最近由于業(yè)務(wù)需求，每日需要對接各種各樣的支付通道（掃碼支付，H5支付，網(wǎng)關(guān)支付）(又分為微信支付，支付寶支付，銀聯(lián)支付，京東支付等等)，雖然每個公司的文檔或業(yè)務(wù)邏輯都不一樣，但是都大同小異，所以整理了一份通用的支付對接類，愿可以幫助到需要的朋友，本人能力有限，也有可能有考慮不周的地方，或者需要改進的，如果你有更好的想法或者建議，可以在下方留言，或者聯(lián)系本人！

    private $payType   = 21;
    private $payMethod = 2;
    private $prefix    = 'HH_';
    private $channel   = "某某支付";
    private $scanApi   = 'scanPayApi';      //掃碼支付
    private $h5Api     = 'h5PayApi';        //H5支付
    private $getwayApi = 'gatewayPayApi';   //網(wǎng)關(guān)支付

  /**------------------------以下更換為自己的邏輯------------------------------*/
    public function index( Request $request  )
    {
        if ( $request -> has( [ 'amount' , 'uid' , 'goods_id' ] ) )
        {
            $amount           = $request -> input( 'amount' );
            $uid              = $request -> input( 'uid' );
            $goods_id         = $request -> input( 'goods_id' );

            /**
             *
             此處編寫自己的邏輯

            $url              = env( 'JYPAY_GETWAY' );

            $u[ "id" ]         = $data[ 'orderId' ];
            $u[ "uid" ]        = $uid;
            $u[ "name" ]       = XMAgentUserData ::getPersonalDetails( $uid )[ 0 ][ 'name' ];
            $u[ "goods_id" ]   = $goods_id;
            $u[ "pay_amount" ] = $amount;
            $u[ "ip_address" ] = $this->getIp();
            $u[ "pay_name" ]   = "華悅支付";
            OrderForm ::insertData( $u );
            return redirect() -> away( $url );

             *
             */
        }
        return response() -> json( [
            'code' => 1001 ,
            'msg'  => 'no' ,
        ] );
    }

    public function notify( Request $request )
    {
        $data = $this->dataReturn($request);
        if ($data['tradeStatus'] == 1 && $sign == $data['sign'])
        {
            $url = env( 'RESPONSE_PAY' ) . $data[ 'fxddh' ] . '&uid=' . $u[ 0 ][ 'uid' ];
            $this->requestCurl($url);
            return 'success';

        }
        return response() -> json( [
            'code' => 1001 ,
            'msg'  => 'no' ,
        ] );
    }

    public function callback()
    {
        return "This is a lonely page";
    }

    /**處理支付前要統(tǒng)一或必備的參數(shù)，建議放簽名的數(shù)據(jù)
     * 
     * @param $amount
     *
     * @return array
     */
    public function dataPooled( $amount )
    {
        $data = [
            "fxid"        => env( 'JYPAY_MERCHANT_NUM' ) ,  //商戶號
            "fxddh"       => $this -> prefix . $this -> payType . time() , //商戶訂單號
            "fxdesc"      => "test" ,                           //商品名
            "fxfee"       => $amount ,                          //支付金額 單位元
            "fxnotifyurl" => env( 'JYPAY_NOTIFY' ) ,        //異步回調(diào) , 支付結(jié)果以異步為準(zhǔn)
            "fxbackurl"   => env( 'JYPAY_RETURN' ) ,        //同步回調(diào) 不作為最終支付結(jié)果為準(zhǔn)，請以異步回調(diào)為準(zhǔn)
            "fxpay"       => $this -> payType ,                 //支付類型 此處可選項以網(wǎng)站對接文檔為準(zhǔn)
            "fxip"        => $this -> getIp()                   //支付端ip地址
        ];
        return $data;
    }

    /** 處理異步回調(diào)后的數(shù)據(jù)
     * 
     * @param Request $request
     *
     * @return array
     */
    public function dataReturn( Request $request )
    {
        $data = [
            'fxid'     => $request -> input( 'fxid' ) ,
            'fxddh'    => $request -> input( 'fxddh' ) ,
            'fxorder'  => $request -> input( 'fxorder' ) ,
            'fxdesc'   => $request -> input( 'fxdesc' ) ,
            'fxfee'    => $request -> input( 'fxfee' ) ,
            'fxstatus' => $request -> input( 'fxstatus' ) ,
            'fxtime'   => $request -> input( 'fxtime' ) ,
            'fxsign'   => $request -> input( 'fxsign' ) ,
        ];
        return $data;
    }

 /**------------------------以下是常用的。有需求更改，無需求可不動------------------------------*/

    /**切換支付API通道
     * 默認(rèn)為H5支付
     *
     * @param string $type
     *
     * @return mixed
     */
    public function apiSwitch( $type = '' )
    {
        switch ( $type ) {
            case 1:
                return $this -> scanApi;
            case 2:
                return $this -> getwayApi;
            default:
                return $this -> h5Api;

        }
    }

   /**------------------------以下是公共的，可直接使用------------------------------*/

    /** url編碼和解碼
     *  默認(rèn)為解碼，
     * 
     * @param        $strOrUrl
     * @param string $type
     *
     * @return string
     */
    public function urlCode( $strOrUrl ,$type = '' )
    {
        return empty($type) ? urldecode($strOrUrl): urlencode($strOrUrl);
    }
    
    /** 解碼
     *
     * @param      $json
     * @param bool $assoc
     *
     * @return mixed
     */
    public function jsonDecode( $json ,$assoc = false)
    {
        return json_decode($json,$assoc);
    }

    /**編碼
     *
     * @param $str
     *
     * @return false|string
     */
    public function jsonEncode($str)
    {
        return json_encode($str);
    }

    /**數(shù)組拼接字符串
     *
     * @param $array
     *
     * @return bool|string
     */
    public function arrayJoinStr( $array )
    {
        $md5str = "";
        foreach ( $array as $key => $val ) {
            $md5str .= $key . "=" . $val . "&";
        }
        return $md5str;
    }

    /**拼接后字符串去除最后的&符號
     *
     * @param $str
     *
     * @return bool|string
     */
    public function strTrim( $str )
    {
        return substr( $str , 0 , -1 );
    }

    /**大小寫轉(zhuǎn)換，默認(rèn)為大寫,有值則小寫
     *
     * @param        $str
     * @param string $type
     *
     * @return string
     */
    public function strCase( $str ,$type = '')
    {
        return empty($type) ? strtoupper($str) : strtolower($str);
    }


    /**數(shù)組按照鍵名排序
     *
     * @param $array
     *
     * @return bool
     */
    public function dataSort( &$array )
    {
        return ksort($array);
    }


    /**加密
     *
     * @param $str
     *
     * @return string
     */
    public function dataMd5( $str )
    {
        return md5( $str );
    }

    /**16進制編碼轉(zhuǎn)字符串
     *
     * @param $hex
     *
     * @return string
     */
    public function hexToString( $hex )
    {
        $string = '';
        for ( $i = 0 ; $i < strlen( $hex ) - 1 ; $i += 2 ) {
            $string .= chr( hexdec( $hex[ $i ] . $hex[ $i + 1 ] ) );
        }
        return $string;
    }

    /**字符串轉(zhuǎn)16進制編碼
     *
     * @param $string
     *
     * @return string
     */
    public function stringToHex( $string )
    {
        $hex = '';
        for ( $i = 0 ; $i < strlen( $string ) ; $i ++ ) {
            $hex .= dechex( ord( $string[ $i ] ) );
        }
        return $hex;
    }

    /**獲取真實IP
     * @return array|false|string
     */
    public function getIp()
    {
        if ( getenv( "HTTP_CLIENT_IP" ) && strcasecmp( getenv( "HTTP_CLIENT_IP" ) , "unknown" ) )
            $ip = getenv( "HTTP_CLIENT_IP" );
        else if ( getenv( "HTTP_X_FORWARDED_FOR" ) && strcasecmp( getenv( "HTTP_X_FORWARDED_FOR" ) , "unknown" ) )
            $ip = getenv( "HTTP_X_FORWARDED_FOR" );
        else if ( getenv( "REMOTE_ADDR" ) && strcasecmp( getenv( "REMOTE_ADDR" ) , "unknown" ) )
            $ip = getenv( "REMOTE_ADDR" );
        else if ( isset( $_SERVER[ 'REMOTE_ADDR' ] ) && $_SERVER[ 'REMOTE_ADDR' ] && strcasecmp( $_SERVER[ 'REMOTE_ADDR' ] , "unknown" ) )
            $ip = $_SERVER[ 'REMOTE_ADDR' ];
        else
            $ip = "unknown";
        return ( $ip );
    }

    /** @模擬請求
     *
     * @param        $url
     * @param array  $postArray
     * @param string $method
     * @param string $content_type
     *
     * @return bool|string
     *
     */
    public function requestCurl( $url , $postArray = [] , $method = 'GET' , $content_type = '' )
    {
        $str = '';
        if ( !empty( $url ) ) {
            try {
                $ch = curl_init();
                curl_setopt( $ch , CURLOPT_URL , $url );
                curl_setopt( $ch , CURLOPT_HEADER , 0 );
                curl_setopt( $ch , CURLOPT_RETURNTRANSFER , 1 );
                curl_setopt( $ch , CURLOPT_TIMEOUT , 30 ); //30秒超時
                curl_setopt( $ch , CURLOPT_FOLLOWLOCATION , 1 );
                curl_setopt( $ch , CURLOPT_HTTPHEADER , $this -> getHeaderContentType( $content_type ) );
                if ( strtoupper( $method ) == 'POST' ) {
                    curl_setopt( $ch , CURLOPT_POST , 1 );
                    curl_setopt( $ch , CURLOPT_POSTFIELDS , $this -> dataBuild( $postArray ) );
                }
                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); //是否驗證對等證書,1則驗證，0則不驗證
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
                $str = curl_exec( $ch );
                curl_close( $ch );
            } catch ( Exception $e ) {
                $str = '';
            }
        }
        return $str;
    }

    /**
     * 數(shù)組生成一個經(jīng)過 URL-encode 的請求字符串
     * ["name"=>"callback" , "value"=>"test"] => name=callback&value=test
     *
     * @param $array
     *
     * @return string
     */
    public function dataBuild( $array )
    {
        return is_array($array) ? http_build_query($array) : $array;
    }


    /**
     * @XML數(shù)據(jù)格式
     * @XJSON數(shù)據(jù)格式
     * @Xform表單數(shù)據(jù)編碼 k=>v
     *
     * @param $type
     *
     * @return array
     */
    public function getHeaderContentType( $type )
    {
        switch ($type){
            case 'xml':
                $type =  "application/xml; charset=utf-8";
            case 'json':
                $type =  "application/json; charset=utf-8";
            case 'html':
                $type =  "text/html; Charset=utf-8";
            default:
                $type =  "application/x-www-form-urlencoded; charset=utf-8";
        }
        return [ "Content-Type:$type" ];
    }

    public function generateStr( $length = 4 )
    {
        if ( $length < 1 || $length > 30 ) {
            return false;
        }
        $chars = [
            'a' , 'b' , 'c' , 'd' , 'e' , 'f' , 'g' , 'h' , 'k' , 'm' , 'n' , 'p' , 'x' , 'y' , 'z' ,
            'A' , 'B' , 'C' , 'D' , 'E' , 'F' , 'G' , 'H' , 'K' , 'M' , 'N' , 'P' , 'X' , 'Y' , 'Z' ,
            1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9
        ];
        $str   = join( '' , array_rand( array_flip( $chars ) , $length ) );
        return $str;
    }