Image Convert to data & it has encode & decoded due to upload from mobile

<img src='a.jpg' width="200px;">
<?php
$path='a.jpg';
$data = file_get_contents($path);
$base64 = base64_encode($data);
$imgdata=base64_decode($base64);
$imgname = "ajith.jpg";
$path = $imgname;
$file = file_put_contents($path,$imgdata,'0777');
?>