json_readable_encode: register hook only if module loaded

plepe · Mar 19, 2018 · 8adaf00 · 8adaf00
1 parent f0a7931
commit 8adaf00
Showing 1 changed file with 9 additions and 7 deletions.
diff --git a/json_readable_encode/json_readable_encode.php b/json_readable_encode/json_readable_encode.php
@@ -120,10 +120,12 @@ function json_readable_encode($in, $indent_string = "    ", $indent = 0, Closure
     return $out;
 }
 
-register_hook("twig_init", function() {
-  global $twig;
-
-  $twig->addFilter(new Twig_SimpleFilter('json_readable_encode', function($data) {
-    return json_readable_encode($data);
-  }));
-});
+if(function_exists('register_hook')) {
+  register_hook("twig_init", function() {
+    global $twig;
+
+    $twig->addFilter(new Twig_SimpleFilter('json_readable_encode', function($data) {
+      return json_readable_encode($data);
+    }));
+  });
+}