can't receive webhooked data - php

Question

I am trying to use webhook to receieve data from a sms service provider.the hooked URL is http://exmple.com/xy/myphp.php and my myphp.php is as follows:
<?php
$con = new mysqli("server","uname","pass","db");
error_reporting(0);
$request = $_REQUEST["data"];
$jsonData = json_decode($request,true);
foreach($jsonData as $key => $value)
{
// request id
$requestID = $value['requestId'];
$userId = $value['userId'];
$senderId = $value['senderId'];
foreach($value['report'] as $key1 => $value1)
{
//detail description of report
$desc = $value1['desc'];
// status of each number
$status = $value1['status'];
// destination number
$receiver = $value1['number'];
//delivery report time
$date = $value1['date'];
$sql="INSERT INTO `delivary_report`(`request_id`, `user_id`, `sender_id`,`date`,`receiver`,`status`,`description`) VALUES('$requestID','$userId','$senderId','$date','$receiver','$status','$desc')";
$res=$con->query($sql);
}
}
//echo $request;
?>
the sms service provider is saying that they can get 406 error. please tell me how to solve this issue. currently i am using godaddy shared server. the json formated data they are sending looks like the follows.
data=[
{
"requestId":"35666a716868323535323239",
"userId":"38229",
"report":[
{
"desc":"REJECTED",
"status":"16",
"number":"91XXXXXXXXXX",
"date":"2015-06-10 17:09:32.0"
}
],
"senderId":"tester"
},
{
"requestId":"35666a716868323535323239",
"userId":"38229",
"report":[
{
"desc":"REJECTED",
"status":"16",
"number":"91XXXXXXXXXX",
"date":"2015-06-10 17:09:32.0"
},
{
"desc":"REJECTED",
"status":"16",
"number":"91XXXXXXXXXX",
"date":"2015-06-10 17:09:32.0"
}
],
"senderId":"tester"
}
]