Allow str_limit to accept null (#11)

Co-authored-by: onairmarc <[email protected]>

Author: onairmarc

.git-blame-ignore-revs

@@ -5,3 +5,4 @@ c0c6bf6fb1c3ad80ff54b7420853ecc9096ee576
 d637c653da4a72e3b2b1132c1f0a4af3e0135387
 de3cddf99b38b4504132eb7449c2b7a20aee5cc3
 ad93f3bac4b6e6937e0e9a1a709afe31e66c5f54
+6c08e6e8b8f13e2ef4526bb18edbac2b136d3261

src/ObjectHelpers/str_helpers.php

@@ -47,8 +47,12 @@ function stringify(mixed $str): string
 }
 
 if (!function_exists('str_limit')) {
-    function str_limit(string $str, int $limit = 100): string
+    function str_limit(?string $str = null, int $limit = 100): ?string
     {
+        if ($str == null) {
+            return null;
+        }
+
         return Str::limit($str, $limit);
     }
 }