zendstudio 声明变量类型，让变量自动方法提示

zendstudio 行内注释， 显式声明变量类型，让变量自动方法提示

      $out = [];

        /* @var $row \xxyy\SizeEntity */

      foreach ($rows[ 'list'] as $row) {

            $out[ 'list'][] = [

                'width'                 => $row->getWidth(),

                'height'                => $row->getHeight(),

            ];

      }





      $out = [];

      /* @var $invoice ChargeInvoice */

      foreach ($response->getChargeInvoice() as $invoice) {

            $tmp = [];

            $tmp[ 'amount'] = $invoice->getChargeAmountMicros();

            $tmp[ 'charge_id'] = $invoice->getChargeId();

            $tmp[ 'date'] = date( 'Y-m-d', $invoice->getChargeEndTimeUtc());

            $out[] = $tmp;

      }