From a7dfc35d08118283368339ff68df034280bb5e72 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=9D=E6=97=A5=E5=AD=9D=E8=BC=94?=
 <waigania13@gmail.com>
Date: Wed, 21 Jun 2017 17:27:07 +0900
Subject: [PATCH] fix to return correct transparent png

---
 tileserver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tileserver.php b/tileserver.php
index 7b21dcb..e5eb31b 100644
--- a/tileserver.php
+++ b/tileserver.php
@@ -433,7 +433,7 @@ public function getCleanTile($scale = 1, $format = 'png') {
         header('Access-Control-Allow-Origin: *');
         header('Content-type: image/png');
         // 256x256 transparent optimised png tile
-        echo unpack('H', '89504e470d0a1a0a0000000d494844520000010000000100010300000066bc3a2500000003504c5445000000a77a3dda0000000174524e530040e6d8660000001f494441541819edc1010d000000c220fba77e0e37600000000000000000e70221000001f5a2bd040000000049454e44ae426082');
+        echo hex2bin('89504e470d0a1a0a0000000d494844520000010000000100010300000066bc3a2500000003504c5445000000a77a3dda0000000174524e530040e6d8660000001f494441541819edc1010d000000c220fba77e0e37600000000000000000e70221000001f5a2bd040000000049454e44ae426082');
         break;
     }
     die;