add array check

2014-05-11 23:36:01 +08:00 · 2014-05-11 23:36:01 +08:00 · 973d4a866d
parent d19c2b6942
commit 973d4a866d
1 changed files with 1 additions and 1 deletions
--- a/Parsedown.php
+++ b/Parsedown.php
@ -1041,7 +1041,7 @@ class Parsedown

    protected function identifyEscapeSequence($excerpt)
    {
-        if (in_array($excerpt[1], $this->specialCharacters))
+        if (isset($excerpt[1]) && in_array($excerpt[1], $this->specialCharacters))
        {
            return array(
                'markup' => $excerpt[1],