Base64 Encode and Decode String in PHP // peachpie.io

	<?php
	function base64url_encode($plainText) {
	$base64 = base64_encode($plainText);
	$base64url = strtr($base64, '+/=', '-_,');
	return $base64url;
	}

	function base64url_decode($plainText) {
	$base64url = strtr($plainText, '-_,', '+/=');
	$base64 = base64_decode($base64url);
	return $base64;
	}

PHP Peachpie Snippet base64 encode decode string