From baefc26a243b5d963da26abc30463b3cd0d539eb Mon Sep 17 00:00:00 2001
From: hidehalo <tianchen_cc@yeah.net>
Date: Sun, 11 Mar 2018 20:51:39 +0800
Subject: [PATCH] try to ignore illegal input characters

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

diff --git a/func.php b/func.php
index 78957e6..d8b0bb0 100644
--- a/func.php
+++ b/func.php
@@ -61,7 +61,7 @@ function utf8_to_cop($unicode)
  */
 function cop_to_utf8($codepoint)
 {
-    $symbol = iconv('UCS-4BE', 'UTF-8', pack('N', $codepoint));
+    $symbol = iconv('UCS-4BE', 'UTF-8//IGNORE', pack('N', $codepoint));
 
     return $symbol;
 }