<?php

//Show the image
echo '<img src="'.$_POST['img_val'].'" />';

//Get the base-64 string from data
$filteredData=substr($_POST['img_val'], strpos($_POST['img_val'], ",")+1);

//Decode the string
$unencodedData=base64_decode($filteredData);

//Save the image
file_put_contents('/images/image.png', $unencodedData);
?>

<div id="target">
   <input id="fileup" name="fileup" type="file" style="display:none;">
   <div id="container" class="container"></div>
</div>