PHP FIle Upload

file.html

<form action="testfile.php" method="post" enctype="multipart/form-data" name="form1">
<input type="file" name="upload_file" id="resume">
<input type="submit" name="SubmitBtn" id="SubmitBtn" value="UPLOAD">
</form>

testfile.php

<?php
if(isset($_POST["SubmitBtn"])){
if($_FILES["upload_file"]["error"]){
	
	echo "File Could Not be Uploaded";
	
}else{
	move_uploaded_file($_FILES["upload_file"]["tmp_name"],"testUpload/".$_FILES["upload_file"]["name"]);
	echo " File Uploaded Successfully";
	
	header("refresh:2; url=file.html");

}
}