HTMLを綺麗に、色んなテスト関係関数の修正

util.php

@@ -61,3 +61,33 @@ function logger(LogType $section, mixed $arg): void {
     file_put_contents($logfile, $arg."\n", FILE_APPEND);
   }
 }
+
+function to_money($amount, $lang) {
+  $amount = floatval($amount);
+
+  switch (strtolower($lang)) {
+    case 'ja':
+      if ($amount >= 100000000) {
+        $oku = $amount / 100000000;
+        return $oku.'億円';
+      } else if ($amount >= 10000) {
+        $man = $amount / 10000;
+        return $man.'万円';
+      }
+      return number_format($amount, 0).'円';
+    case 'en':
+      if ($amount >= 1000000000) {
+        $billion = $amount / 1000000000;
+        return '¥ '.$billion.' billion';
+      } else if ($amount >= 1000000) {
+        $million = $amount / 1000000;
+        return '¥ '.$million.' million';
+      } else if ($amount >= 1000) {
+        $thousand = $amount / 1000;
+        return '¥ '.$thousand.' thousand';
+      }
+      return '¥ '.number_format($amount, 0);
+    default:
+      return '¥ '.number_format($amount, 0);
+  }
+}