Unable to get the ajax response value

Question

function getform()
{
    var c_name = $('#dropdownid').val();
    var c_id = $('#src5').val();
    var c_date = $('#c_date').val();
    var result={"c_name":c_name,"c_id":c_id,"c_date":c_date};

    $.ajax({
            url: "cont_get.php",
            type: "POST",
            data: {"c_name": c_name, "c_id":c_id, "c_date":c_date},
            success: function () {
                console.log('Updated');
                },
                error: function (err)
                {
                console.log(err);
                }
     });
}

File name: cont_get.php

Need help to clear the issue! Once i run this php file its shown else statement "error" msg only.

<?php
    require_once "dbconnect.php";

    //echo '1';
    if(isset($_POST['c_id'])&& ($_POST['c_date'])&& ($_POST['c_name']))
    {
     echo '5';
     $c_name = $_POST['c_name'];
     $c_id =$_POST['c_id'];
     $c_date =$_POST['c_date'];

    //$current = date('d-m-Y');
    //$date = strtotime($current);

    $result1=$link->query("UPDATE feedback SET c_name='$c_name',last_date='$c_date' WHERE id = '$c_id'");
    $result1->bind_param('i', $c_id);
    $result1->execute();

    if ($result1)
    {
        print "Successfully";
    }
    else
    {
        print "Failed";
    }
    }
    else
    {

        echo 'error';
    }
?>