CiviCRM temporary patch

civicrm-core.patch

From 10e59978672d9b779ae7ada18130837717397b29 Mon Sep 17 00:00:00 2001
From: demeritcowboy <demeritcowboy@hotmail.com>
Date: Sat, 26 Sep 2020 10:25:12 -0400
Subject: [PATCH] avoid crash from recursion on exceptions
Source: https://github.com/civicrm/civicrm-core/pull/18610

---
 CRM/Core/Error.php | 13 ++++---

diff --git a/CRM/Core/Error.php b/CRM/Core/Error.php
index aced775beed..ec287600277 100644
--- a/CRM/Core/Error.php
+++ b/CRM/Core/Error.php
@@ -529,11 +529,14 @@ public static function debug_var($variable_name, $variable, $print = TRUE, $log
         $out = "\$$variable_name = $out";
       }
       else {
-        // use var_dump
-        ob_start();
-        var_dump($variable);
-        $dump = ob_get_contents();
-        ob_end_clean();
+        // Use Symfony var-dumper to avoid circular references that exhaust
+        // memory when using var_dump().
+        // Use its CliDumper since if we use the simpler `dump()` then it
+        // comes out as some overly decorated html which is hard to read.
+        $dump = (new \Symfony\Component\VarDumper\Dumper\CliDumper('php://output'))
+          ->dump(
+            (new \Symfony\Component\VarDumper\Cloner\VarCloner())->cloneVar($variable),
+            TRUE);
         $out = "\n\$$variable_name = $dump";
       }
       // reset if it is an array