How to save data url into file on PHP

I have a simple script below written on PHP that will save the data url in a file. The example below will save the file on PDF and PNG file. You will notice here that the only difference are the file type and the file name which should comply with the file type you are saving. From the script below, you should be able to figure out how to save the other file types.

This is for saving an image file "PNG", you can also try "JPEG" and other image files.

<?php

$base_url = 'http://www.example.com/';
$file_type = 'image/png';
$file_base = $_POST['dataurl'];
$file_name = "file-".time().".png";

$file_base = str_replace('data:'.$file_type.';base64,', '', $file_base);
$file_base = str_replace('[removed]', '', $file_base);

file_put_contents(getcwd()."/files/$file_name", base64_decode($file_base));
echo $base_url."files/$file_name";

?>

The script below is for saving an application data "PDF" file.

<?php

$base_url = 'http://www.example.com/';
$file_type = 'application/pdf';
$file_base = $_POST['dataurl'];
$file_name = "file-".time().".pdf";

$file_base = str_replace('data:'.$file_type.';base64,', '', $file_base);
$file_base = str_replace('[removed]', '', $file_base);

file_put_contents(getcwd()."/files/$file_name", base64_decode($file_base));
echo $base_url."files/$file_name";

?>

Hope this will help a lot with your development. Happy coding guys!!