From 0d99e376e1c26aa097157560f8ea118a26751406 Mon Sep 17 00:00:00 2001
From: foksisko <foksisko@users.noreply.github.com>
Date: Sat, 12 Dec 2015 06:39:24 +0000
Subject: [PATCH] Throw fatal error when the parameter $callable in
 $shortcode->add() is a closure

https://github.com/getherbert/herbert/issues/65
---
 Herbert/Framework/Shortcode.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Herbert/Framework/Shortcode.php b/Herbert/Framework/Shortcode.php
index 4e99072..25b65b4 100644
--- a/Herbert/Framework/Shortcode.php
+++ b/Herbert/Framework/Shortcode.php
@@ -41,7 +41,7 @@ public function add($name, $callable, $arguments = [])
                 $attributes = $this->renameArguments($arguments, $attributes);
             }
 
-            if (strpos($callable, '::') !== false)
+            if (is_string($callable) && strpos($callable, '::') !== false)
             {
                 list($api, $method) = explode('::', $callable);