Lint

Author: cicnavi

src/ValueAbstracts/SignatureKeyPairBag.php

@@ -54,7 +54,11 @@ public function hasKeyId(string $keyId): bool
 
     public function getFirst(): ?SignatureKeyPair
     {
-        return $this->signatureKeyPairs[array_key_first($this->signatureKeyPairs)] ?? null;
+        if (is_null($firstKey = array_key_first($this->signatureKeyPairs))) {
+            return null;
+        }
+
+        return $this->signatureKeyPairs[$firstKey] ?? null;
     }
 
 

src/ValueAbstracts/SignatureKeyPairConfigBag.php

@@ -69,7 +69,11 @@ public function getAllAlgorithmNamesUnique(): array
 
     public function getFirst(): ?SignatureKeyPairConfig
     {
-        return $this->signatureKeyPairConfigs[array_key_first($this->signatureKeyPairConfigs)] ?? null;
+        if (is_null($firstKey = array_key_first($this->signatureKeyPairConfigs))) {
+            return null;
+        }
+
+        return $this->signatureKeyPairConfigs[$firstKey] ?? null;
     }