fix: handle zero length file case in loadKeywordsFromFile function (#29)

Co-authored-by: Tristan Feldbusch <[email protected]>
shopgate · Feb 23, 2024 · 9679fac · 9679fac
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Fixed
+* handle zero length file case in loadKeywordsFromFile function
 
 ## [2.10.2] - 2023-10-16
 ### Fixed

diff --git a/src/redirect.php b/src/redirect.php
@@ -730,7 +730,8 @@ protected function loadKeywordsFromFile($file)
             );
         }
 
-        $keywordsFromFile = explode("\n", @fread($cacheFile, filesize($file)));
+        $filesize = filesize($file);
+        $keywordsFromFile = $filesize > 0 ? explode("\n", @fread($cacheFile, $filesize)) : array();
         @fclose($cacheFile);
 
         /* @phpstan-ignore-next-line */