forcing utf8 encoding on xml of request

README.md

@@ -16,7 +16,7 @@ Utilized by other applications as well:
 ## Notes per version
 PHP 7.0+ is required for all versions of this library. Please use the major git releases for the stable versions of this plugin.
 
-### Notes version 2.1 (upcoming)
+### Notes version 2.0.12 (latest)
 Allowing the verification if the current IP is based in the Netherlands utilizing a geolocation integration *(IPAPI). Use this feature through the Helper/IPAPI class. Currently implemented public function is: 
 ```php
 $bluem->VerifyIPIsNetherlands();
@@ -36,7 +36,7 @@ Triodos Bank, BIC TRIONL2U no longer supported for Identity requests as of 1 jun
 ### Notes version 2.0.1:
 Major release with more stability, validation and features.
 
-Please note: The main Integration class is called Bluem, so to include it, use something like:
+Please note: The main Integration class is called Bluem, so to include it, use:
 ```php
 $bluem = new Bluem($config);
 ```

src/Bluem.php

@@ -451,7 +451,11 @@ public function CreateEntranceCode(): String
     public function PerformRequest(BluemRequest $transaction_request)
     {
         $validator = new Validator();
-        if (!$validator->validate($transaction_request->RequestContext(), $transaction_request->XmlString())) {
+        if (!$validator->validate(
+                $transaction_request->RequestContext(),
+                utf8_encode($transaction_request->XmlString())
+            )
+        ) {
             return new ErrorBluemResponse(
                 "Error: Request is not formed correctly. More details: ".
                 implode(
@@ -496,10 +500,10 @@ public function PerformRequest(BluemRequest $transaction_request)
             echo PHP_EOL . "<BR>HEADER// " . 'x-ttrs-files-count: ' . '1';
             echo PHP_EOL . "<BR>HEADER// " . 'x-ttrs-filename: ' . $xttrs_filename;
             echo "<HR>";
-            echo PHP_EOL . "BODY: " . $transaction_request->XmlString();
+            echo PHP_EOL . "BODY: " . utf8_encode($transaction_request->XmlString());
         }
 
-        $req->setBody($transaction_request->XmlString());
+        $req->setBody(utf8_encode($transaction_request->XmlString()));
         try {
             $http_response = $req->send();
             if ($verbose) {