diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4be3bb10a..7fb2cd06a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,13 +7,15 @@ jobs:
   unit:
     name: "Unit tests"
     runs-on: ubuntu-22.04
-
+    continue-on-error: ${{ matrix.experimental }}
     strategy:
-      fail-fast: false
+      fail-fast: true
       matrix:
-        php:
-          - "7.4"
-          # - "8.2"
+        php: [ "7.4" ]
+        experimental: [ false ]
+        include:
+          - php: "8.2"
+            experimental: true
 
     steps:
       - uses: actions/checkout@v4
diff --git a/sources/Afup/Association/Cotisations.php b/sources/Afup/Association/Cotisations.php
index c2d62d786..7c0305339 100644
--- a/sources/Afup/Association/Cotisations.php
+++ b/sources/Afup/Association/Cotisations.php
@@ -221,16 +221,13 @@ function estDejaReglee($cmd)
 
     function notifierRegelementEnLigneAuTresorier($cmd, $total, $autorisation, $transaction, UserRepository $userRepository)
     {
-        /**
-         * @var Configuration $configuration
-         */
-        $configuration = $GLOBALS['AFUP_CONF'];
-
         $account = $this->getAccountFromCmd($cmd);
 
         if (AFUP_PERSONNES_MORALES == $account['type']) {
+            $invoiceNumber = substr($cmd, 1);
+            $cotisation = $this->getByInvoice($invoiceNumber);
             $personnes = new Personnes_Morales($this->_bdd);
-            $infos = $personnes->obtenir($account['id'], 'nom, prenom, email');
+            $infos = $personnes->obtenir($cotisation['id_personne'], 'nom, prenom, email');
         } else {
             $user = $userRepository->get($account['id']);
             Assertion::notNull($user);
@@ -281,7 +278,7 @@ function validerReglementEnLigne($cmd, $total, $autorisation, $transaction)
             $date_debut = mktime(0, 0, 0, substr($date, 2, 2), substr($date, 0, 2), substr($date, 4, 4));
 
             $cotisation = $this->obtenirDerniere($type_personne, $id_personne);
-            $date_fin_precedente = $cotisation['date_fin'];
+            $date_fin_precedente = $cotisation === false ? 0 : $cotisation['date_fin'];
 
             if ($date_fin_precedente > 0) {
                 $date_debut = strtotime('+1day', $date_fin_precedente);
@@ -569,7 +566,7 @@ public function envoyerFacture($id_cotisation, Mailer $mailer, UserRepository $u
      *
      * @param    int $id_personne Identifiant de la personne
      * @access    public
-     * @return    array
+     * @return    array|false
      */
     function obtenirDerniere($type_personne, $id_personne)
     {
diff --git a/sources/Afup/Association/Personnes_Morales.php b/sources/Afup/Association/Personnes_Morales.php
index e670d849b..2798a07f8 100644
--- a/sources/Afup/Association/Personnes_Morales.php
+++ b/sources/Afup/Association/Personnes_Morales.php
@@ -112,7 +112,7 @@ public function obtenirMembresMaximum($id, $default = 3)
      * @param  int $id Identifiant de la personne
      * @param  string $champs Champs à renvoyer
      * @access public
-     * @return array
+     * @return array|false
      */
     function obtenir($id, $champs = '*')
     {
diff --git a/sources/AppBundle/Association/Model/CompanyMember.php b/sources/AppBundle/Association/Model/CompanyMember.php
index cf4607c4d..da8213743 100644
--- a/sources/AppBundle/Association/Model/CompanyMember.php
+++ b/sources/AppBundle/Association/Model/CompanyMember.php
@@ -557,15 +557,20 @@ public function getTwitterHandle()
     }
 
     /**
+     * Duplicate of AppBundle\Event\Model\Speaker::getCleanedTwitterHandle()
      * @return bool|string
      */
     public function getCleanedTwitterHandle()
     {
         $twitter = $this->getTwitterHandle();
+        if (!$twitter) {
+            return null;
+        }
+
         $twitter = trim($twitter, '@');
         $twitter = preg_replace('!^https?://twitter.com/!', '', $twitter);
 
-        if (0 === strlen(trim($twitter))) {
+        if (!$twitter) {
             return null;
         }
 
@@ -660,7 +665,7 @@ public function getLastSubscription()
     public function setLastSubscription($sub)
     {
         if ($sub !== null) {
-            $this->lastSubscription = \DateTimeImmutable::createFromFormat('U', $sub);
+            $this->lastSubscription = \DateTimeImmutable::createFromFormat('U', (string) $sub);
         }
     }
 
diff --git a/sources/AppBundle/Association/Model/User.php b/sources/AppBundle/Association/Model/User.php
index 2f62b4cc6..8c2ecfa7f 100644
--- a/sources/AppBundle/Association/Model/User.php
+++ b/sources/AppBundle/Association/Model/User.php
@@ -582,7 +582,7 @@ public function getLastSubscription()
     public function setLastSubscription($sub)
     {
         if ($sub !== null) {
-            $this->lastSubscription = \DateTimeImmutable::createFromFormat('U', (string)$sub);
+            $this->lastSubscription = \DateTimeImmutable::createFromFormat('U', (string) $sub);
         }
     }
 
diff --git a/sources/AppBundle/Controller/Admin/Members/GeneralMeeting/ReportsAction.php b/sources/AppBundle/Controller/Admin/Members/GeneralMeeting/ReportsAction.php
index cb13aec95..c1abc65a5 100644
--- a/sources/AppBundle/Controller/Admin/Members/GeneralMeeting/ReportsAction.php
+++ b/sources/AppBundle/Controller/Admin/Members/GeneralMeeting/ReportsAction.php
@@ -89,7 +89,7 @@ public function __invoke(Request $request): Response
     private static function humanFilesize($bytes): string
     {
         $sz = 'BKMGTP';
-        $factor = floor((strlen($bytes) - 1) / 3);
+        $factor = floor((strlen((string) $bytes) - 1) / 3);
 
         return sprintf("%.2f", $bytes / (1024 ** $factor)) . $sz[(int) $factor];
     }
diff --git a/sources/AppBundle/Controller/Admin/Planete/FeedListAction.php b/sources/AppBundle/Controller/Admin/Planete/FeedListAction.php
index b95d905df..1470a21b3 100644
--- a/sources/AppBundle/Controller/Admin/Planete/FeedListAction.php
+++ b/sources/AppBundle/Controller/Admin/Planete/FeedListAction.php
@@ -53,7 +53,7 @@ public function __invoke(Request $request)
     private function testFeeds(array $feeds)
     {
         // on n'affiche rien du tout
-        ini_set('display_errors', 0);
+        ini_set('display_errors', '0');
         set_time_limit(240);
         $results = [];
         foreach ($feeds as $f) {
diff --git a/sources/AppBundle/Controller/MemberShipController.php b/sources/AppBundle/Controller/MemberShipController.php
index c5543e838..82378a63a 100644
--- a/sources/AppBundle/Controller/MemberShipController.php
+++ b/sources/AppBundle/Controller/MemberShipController.php
@@ -404,9 +404,9 @@ public function membershipFeeAction()
             $message = sprintf(
                 'Votre dernière cotisation -- %s %s -- est valable jusqu\'au %s. <br />
         Si vous renouvelez votre cotisation maintenant, celle-ci sera valable jusqu\'au %s.',
-                number_format($cotisation['montant'], 2, ',', ' '),
+                number_format((float) $cotisation['montant'], 2, ',', ' '),
                 EURO,
-                date("d/m/Y", $cotisation['date_fin']),
+                date("d/m/Y", (int) $cotisation['date_fin']),
                 $endSubscription->format('d/m/Y')
             );
         }
@@ -508,7 +508,7 @@ public function membershipFeeDownloadAction(Request $request)
             $patternPrefix = $user->getLastName();
         }
 
-        $pattern = str_replace(' ', '', $patternPrefix) . '_' . $numeroFacture . '_' . date('dmY', $cotisation['date_debut']) . '.pdf';
+        $pattern = str_replace(' ', '', $patternPrefix) . '_' . $numeroFacture . '_' . date('dmY', (int) $cotisation['date_debut']) . '.pdf';
 
         $response = new BinaryFileResponse($tempfile, 200, [], false);
         $response->deleteFileAfterSend(true);
@@ -554,7 +554,7 @@ public function generalMeetingAction(Request $request)
         $generalMeetingPlanned = $generalMeetingRepository->hasGeneralMeetingPlanned();
 
         $cotisation = $userService->getLastSubscription($user);
-        $needsMembersheepFeePayment = $latestDate->getTimestamp() > strtotime("+14 day", $cotisation['date_fin']);
+        $needsMembersheepFeePayment = $latestDate->getTimestamp() > strtotime("+14 day", (int) $cotisation['date_fin']);
 
         if ($needsMembersheepFeePayment) {
             return $this->render('admin/association/membership/generalmeeting_membersheepfee.html.twig', [
diff --git a/sources/AppBundle/TechLetter/Model/TechLetterFactory.php b/sources/AppBundle/TechLetter/Model/TechLetterFactory.php
index 6c720724e..e2004dbd0 100644
--- a/sources/AppBundle/TechLetter/Model/TechLetterFactory.php
+++ b/sources/AppBundle/TechLetter/Model/TechLetterFactory.php
@@ -8,7 +8,7 @@ class TechLetterFactory
 {
     public static function createTechLetterFromJson($json)
     {
-        $array = json_decode($json, true);
+        $array = json_decode((string) $json, true);
 
         $articles = $projects = [];
         if (isset($array['projects'])) {