php $ _REQUEST在通过android传递数据时无效

Question

<?php 
if(isset($_REQUEST['body']))
{
        $body = $_REQUEST['body'];

        $api_key = "tHx7zm7eb7z3yKHtNb";
        $password = "x";
        $yourdomain = "appicmobile";


        $ticket_data = json_encode(array(
          "body" => $body
        ));


        $url = "https://$yourdomain.freshdesk.com/api/v2/tickets/32/reply";

        $ch = curl_init($url);

        $header[] = "Content-type: application/json";
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_USERPWD, "$api_key:$password");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $ticket_data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        $server_output = curl_exec($ch);
        $info = curl_getinfo($ch);
        $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
        $headers = substr($server_output, 0, $header_size);
        $response = substr($server_output, $header_size);

        if($info['http_code'] == 201)
         {
          // "Ticket created successfully, the response is given below \n";
          //echo "Response Headers are \n";
          //echo $headers."\n";
          //echo "Response Body \n";
          echo "$response";

        } 
        else 
        {
          if($info['http_code'] == 404) 
          {
            echo "Error, Please check the end point \n";
          } 
          else
          {
            echo "Error, HTTP Status Code : " . $info['http_code'] . "\n";
            echo "Headers are ".$headers;
            echo "Response are ".$response;
          }
        }

        curl_close($ch);
}
else {
    echo "error";
}
?>

虽然通过Android使用php输入数据显示为空。我正在使用排球传递数据。 我试图将数据从Android传递到我的PHP应用程序，但似乎POST方法运行不正常，一旦所有$ _REQUEST变量都为空。 尝试了所有方法获取，发布但仍无法正常工作