<?php
include_once 'dbconnect.php';
if($_SERVER['REQUEST_METHOD']='POST'){
    
    if(isset($_POST['submit']) or !empty($_POST['submit'])){
        $id = $_POST['id'];
        $name=isset($_POST['name'])?$_POST['name']:NULL;

        if(is_null($name) or empty($name)){
            header("location:{$_REQUEST['/']}?action=name&msg=blank-name&/=$id");
            exit;

        }

        $email=isset($_POST['email'])?$_POST['email']:NULL;
        

        if(is_null($email) or empty($email)){
            header("location:{$_REQUEST['/']}?action=email&msg=blank-email&/=$id");
            exit;
            
        }

        $mobile=isset($_POST['mobile'])?$_POST['mobile']:NULL;

        if(is_null($mobile) or empty($mobile)){
            header("location:{$_REQUEST['/']}?action=mobile&msg=blank-mobile&/=$id");
            exit;
            
        }
            
        }

        $insertquery="update vritant_tbl set name='{$name}',email='{$email}',mobile='{$mobile}' where id='{$id}'";
        $iquery =mysqli_query($con,$insertquery);
        if($iquery){
            ?>
                <script>
                window.alert("update Successfully");
                window.location.href="show.php";

                </script>
            <?php
        }else{

            ?>
                <script>
                window.alert("Failed");
        

                </script>
            <?php
            

        }


    }else{
        header("location:edit.php?msg=Invalid-Request");
    }

?>




EditCode in PHP BY Vritant