Workaround to add tags to DICOM file. Uses anonymizer to set the new tag at the right order in the dataset. Certainly a bug.

create_new_elements.php

<?php
  // 1) Workaround to create new elements for Nanodicom
	try
	{
		$dicom  = Nanodicom::factory($filename, 'anonymizer');
		// Set Value (Patient Name here)
		$dicom->value(0x0010, 0x0010, 'JKD');
		//$dicom->value(0x0010, 0x0010, 'JKD'); Others as well
		$tags = array(
			array(0xF0ED, 0xF0ED, 'id{random}'),			// Non-existing tag. Sorry, needs one at least
		);
		$replacements = array(
			array(0x0010, 0x0010, 'JKD', 'JKD'),
			// array(0x0010, 0x0010, 'JKD', 'JKD'), Whatever was used above should be added here. Same value to be saved should be set for both last parameters
		);
		
		// Save the file with same name
		file_put_contents($filename, $dicom->anonymize($tags, $replacements));
	}
	catch (Nanodicom_Exception $e)
	{
		echo 'File failed. '.$e->getMessage()."\n";
	}