getting error of undefined id in line 4.how to resolve it?
<?php require_once('includes/Functions.php'); ?>
<?php require_once('includes/DB.php'); ?>
<?php require_once('includes/sessions.php'); ?>
<?php $searchingParameter = $_GET['id']; ?>
<?php
if(isset($_POST["Submit"])){
$Name = $_POST["commenterName"];
$Email = $_POST["commenterEmail"];
$Comment = $_POST["commenterThoughts"];
date_default_timezone_set("Asia/Kolkata");
$currentTime = time();
$DateTime = strftime("%B-%d-%Y %H:%M:%S",$currentTime);
if(empty($Name)||empty($Email)||empty($Comment)){
$_SESSION["errorMessage"] = "this field can't be empty";
redirect_to("FullPost.php?id = {$searchingParameter}");
}
elseif (strlen($Comment)>500) {
$_SESSION["errorMessage"] = "Comment length should be smaller than 500 characters";
redirect_to("FullPost.php?id = {$searchingParameter}");
}
else{
//query to insert comment
$sql = "INSERT INTO comments(datetime,name,email,comment)";
$sql.= "VALUES(:dateTime,:Name,:Email,:Comment)";
$stmt = $connectingdb->prepare($sql);
$stmt->bindValue(':dateTime',$DateTime);
$stmt->bindValue(':Name',$Name);
$stmt->bindValue(':Email',$Email);
$stmt->bindValue(':Comment',$Comment);
$Execute = $stmt->execute();
if($Execute){
$_SESSION["successMessage"] = " commented successfully.";
redirect_to("FullPost.php?id ={$searchingParameter} ");
}
else{
$_SESSION["errorMessage"] = "insertion unsuccessful.Try again!!";
redirect_to("FullPost.php?id ={$searchingParameter} ");
}
}
}
?>
I am not able to use $searchParameter in the page and getting the error of undefined id in line 4 why? exact error looks like- Undefined index: id in C:\xampp\htdocs\CMS\FullPost.php on line