use gmp for cdr_len and cdr_ofs

frederikbosch · frederikbosch · commit 60930fc9dd0e · 2023-03-30T11:59:27.000+02:00
diff --git a/src/ZipReader.php b/src/ZipReader.php
@@ -44,7 +44,7 @@ final class ZipReader implements ArchiveReader
     /**
      * @var \GMP
      */
-    private $cdr_ofs = 0;
+    private $cdr_ofs;
 
     /**
      * @var \GMP
