Check-in; adding features like mixshow and google analytics.

includes/hreflang.php

@@ -0,0 +1,21 @@
+<?php
+
+// based on the page that called this include, we will set the hreflang
+
+$languages = $config['locales'];
+
+$list = [];
+
+// for every key, rewrite it to be just the language code.
+// for example, fil_PH becomes fil; taking note that we are removing _ and everything that follows
+foreach ($languages as $key => $value) {
+    $key2 = str_replace('_', '-', $key);
+    $list[] = '<link rel="alternate" hreflang="' . $key2 . '" href="' . $config['app']['url'] . '/?lang=' . $key . '"/>' . PHP_EOL;
+}
+
+// dedupe $list
+    $list = array_unique($list);
+
+    foreach ($list as $link) {
+        echo $link;
+    }