add balance report

_include/include_download_report.php

@@ -0,0 +1,25 @@
+<?php
+
+
+# REPORT DOWNLOAD
+
+if ($this->is_id()) {
+
+    if (!file_exists("./balance-report/{$this->get_id()}.csv")) {
+        return;
+    }
+
+    header('Content-type: application/csv');
+    header("Content-disposition: attachment; filename=\"".$this->get_id().".csv\"");
+    ob_clean();
+    flush();
+    readfile("./balance-report/{$this->get_id()}.csv");
+}
+
+else {
+    # NEM LEHET
+}
+
+exit(1);
+
+?>