Base64 encoded image save by PHP

How to save base64 encoded image in a file using PHP

1. <?php
2.  /// define upload directory
3.     define(‘UPLOAD_DIR’, ‘images/’);
4. /// explode  on ;base64  to know image type from encoded string
5.    $image_parts = explode(“;base64,”, $_POST[‘image’]);
6.     $image_type_aux = explode(“image/”, $image_parts[0]);
7.     $image_type = $image_type_aux[1];
8.     $image_base64 = base64_decode($image_parts[1]);
9.    /// create file path with file name
10.     $filepath = UPLOAD_DIR .’img_’. uniqid() . ‘.png’;
11.   /// put file to upload directory, please do not forget to double check directory permissions to write.
12.     file_put_contents($filepath, $image_base64);
13. ?>