Fix encoding

Thanks to https://github.com/technosophos/querypath/issues/94#issuecomment-45725727.

pages/artist.php

@@ -1,7 +1,8 @@
 <?php
+  include "../utilities/dom.php";
   require "../modules/querypath/src/qp.php";
 
-  $document = htmlqp(file_get_contents("https://" . urlencode($_GET["name"]) . ".bandcamp.com/music"));
+  $document = htmlqp(encode_document(file_get_contents("https://" . urlencode($_GET["name"]) . ".bandcamp.com/music")));
 
   $title = $document->find("#band-name-location .title")->text();
 ?>

pages/release.php

@@ -1,7 +1,8 @@
 <?php
+  include "../utilities/dom.php";
   require "../modules/querypath/src/qp.php";
 
-  $document = htmlqp(file_get_contents("https://" . urlencode($_GET["artist"]) . ".bandcamp.com/" . urlencode($_GET["type"]) . "/" . urlencode($_GET["name"])));
+  $document = htmlqp(encode_document(file_get_contents("https://" . urlencode($_GET["artist"]) . ".bandcamp.com/" . urlencode($_GET["type"]) . "/" . urlencode($_GET["name"]))));
   $json = json_decode($document->find("script[data-tralbum]")->attr("data-tralbum"));
 
   $title = $json->current->title;

utilities/dom.php

@@ -0,0 +1,14 @@
+<?php
+  function encode_document($text) {
+    $document = new DOMDocument();
+    $document->loadHTML("<?xml encoding=\"UTF-8\">" . $text);
+
+    foreach ($document->childNodes as $node) {
+      if ($node->nodeType === XML_PI_NODE)
+        $document->removeChild($node);
+    };
+
+    $document->encoding = "UTF-8";
+    return $document;
+  };
+?>