Merge pull request #241 from shu-yusa/php85-compat

Fix PHP 8.5 compatibility

Author: kelvinmo

.github/workflows/ci.yml

@@ -14,6 +14,7 @@ jobs:
           - 8.2
           - 8.3
           - 8.4
+          - 8.5
     steps:
       - name: Checkout
         uses: actions/checkout@v4

src/SimpleJWT/Keys/KeySet.php

@@ -324,7 +324,7 @@ protected function find(array $criteria): ?array {
                     break;
                 }
             }
-            if ($found) $results[$kid] = $key_data;
+            if ($found) $results[$kid ?? ''] = $key_data;
         }
 
         // 3. If zero or one key is found after allowing for mandatory and

src/SimpleJWT/Util/ASN1/DER.php

@@ -286,7 +286,7 @@ static function encodeInteger($int) {
         $data = gmp_export($int);
 
         if (strlen($data) == 0) return "\0";
-        if (ord($data) > 127) return "\0" . $data;
+        if (ord($data[0]) > 127) return "\0" . $data;
         return $data;
     }