From aaf507a766cfb2b63152f3cc5c89e0d11c2ed00d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Despont?= <sebastien.despont@gmail.com>
Date: Tue, 29 Aug 2023 08:36:24 +0200
Subject: [PATCH] Update Pbkdf2PasswordHasher.php

Because https://www.php.net/manual/en/function.hash-pbkdf2.php is expecting string and not ?string. Pertmits avoiding deprecation warning.
---
 .../Component/PasswordHasher/Hasher/Pbkdf2PasswordHasher.php    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/PasswordHasher/Hasher/Pbkdf2PasswordHasher.php b/src/Symfony/Component/PasswordHasher/Hasher/Pbkdf2PasswordHasher.php
index 57fbe0728fe93..2fc762cb4e870 100644
--- a/src/Symfony/Component/PasswordHasher/Hasher/Pbkdf2PasswordHasher.php
+++ b/src/Symfony/Component/PasswordHasher/Hasher/Pbkdf2PasswordHasher.php
@@ -69,7 +69,7 @@ public function hash(string $plainPassword, string $salt = null): string
             throw new LogicException(sprintf('The algorithm "%s" is not supported.', $this->algorithm));
         }
 
-        $digest = hash_pbkdf2($this->algorithm, $plainPassword, $salt, $this->iterations, $this->length, true);
+        $digest = hash_pbkdf2($this->algorithm, $plainPassword, $salt ?? '', $this->iterations, $this->length, true);
 
         return $this->encodeHashAsBase64 ? base64_encode($digest) : bin2hex($digest);
     }