From 6ba3d09071d877ddad0f1487f580d4b5985b18f2 Mon Sep 17 00:00:00 2001
From: Brian Henry <BrianHenryIE@gmail.com>
Date: Thu, 10 Oct 2024 13:41:51 -0700
Subject: [PATCH] =?UTF-8?q?Fix=20#115=20=E2=80=93=20return=20original=20st?=
 =?UTF-8?q?ring=20if=20preg=5Freplace=20fails?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/Licenser.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Licenser.php b/src/Licenser.php
index ca524637..06dd0f6e 100644
--- a/src/Licenser.php
+++ b/src/Licenser.php
@@ -286,6 +286,12 @@ public function addChangeDeclarationToPhpString(
             );
         }
 
-        return $updatedPhpString;
+        /**
+         * In some cases `preg_replace_callback` returns `null` instead of the string. If that happens, return
+         * the original, unaltered string.
+         *
+         * @see https://github.com/BrianHenryIE/strauss/issues/115
+         */
+        return $updatedPhpString ?? $phpString;
     }
 }