From f9584f09b5b4aacf84ec8f90ae01f9a050dd8a8e Mon Sep 17 00:00:00 2001
From: jackpoz <giacomopoz@gmail.com>
Date: Wed, 20 Oct 2021 20:54:04 +0200
Subject: [PATCH] Handle is_callable returning false with instance methods on
 static types since PHP 8

See https://php.watch/versions/8.0/non-static-static-call-fatal-error
---
 index.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/index.php b/index.php
index c5ce8a19..a42ba2bd 100644
--- a/index.php
+++ b/index.php
@@ -116,6 +116,17 @@ switch ($pageCall)
             $class = $cleanName.'Page';
             if (is_callable([$class, 'display']))
                 (new $class($pageCall, $pageParam))->display();
+            else if (method_exists($class, 'display'))
+            {
+                // PHP 8 requires an instance of $class for is_callable to work
+                $classInstance = new $class($pageCall, $pageParam);
+                if (is_callable([$classInstance, 'display']))
+                    $classInstance->display();
+                else if (isset($_GET['power']))
+                    die('$WowheadPower.register(0, '.User::$localeId.', {})');
+                else                                            // in conjunction with a proper rewriteRule in .htaccess...
+                    (new GenericPage($pageCall))->error();
+            }
             else if (isset($_GET['power']))
                 die('$WowheadPower.register(0, '.User::$localeId.', {})');
             else                                            // in conjunction with a proper rewriteRule in .htaccess...