fix: remove invalid named arguments from sprintf() calls

sprintf() does not accept named parameters for its variadic $values
argument in PHP 8.x, causing an ArgumentCountError. This broke local
login when LDAP support was enabled, as the LDAP lookup failure path
crashed before falling back to local authentication.

Author: thorsten

phpmyfaq/src/phpMyFAQ/Controller/Api/BackupController.php

@@ -110,7 +110,7 @@ public function download(Request $request): Response
             $backupFile = $backup->createContentFolderBackup();
             $response = new Response(file_get_contents($backupFile));
 
-            $backupFileName = sprintf(format: 'content_%s.zip', values: date(format: 'dmY_H-i'));
+            $backupFileName = sprintf('content_%s.zip', date('dmY_H-i'));
 
             $disposition = HeaderUtils::makeDisposition(
                 HeaderUtils::DISPOSITION_ATTACHMENT,

phpmyfaq/src/phpMyFAQ/Ldap.php

@@ -118,7 +118,7 @@ public function connect(
 
         if (false === $ldapBind) {
             $this->errno = ldap_errno($this->ds);
-            $this->error = sprintf(format: 'Unable to bind to LDAP server (Error: %s).', values: ldap_error($this->ds));
+            $this->error = sprintf('Unable to bind to LDAP server (Error: %s).', ldap_error($this->ds));
             $this->ds = false;
 
             return false;
@@ -209,7 +209,7 @@ private function getLdapData(string $username, string $data): bool|string
 
         if (!$entryId) {
             $this->errno = ldap_errno($this->ds);
-            $this->error = sprintf(format: 'Cannot get the value(s). Error: %s', values: ldap_error($this->ds));
+            $this->error = sprintf('Cannot get the value(s). Error: %s', ldap_error($this->ds));
 
             return false;
         }
@@ -281,7 +281,7 @@ private function getLdapDn(string $username): string|false
         $entryId = ldap_first_entry($this->ds, $sr);
 
         if (false === $entryId) {
-            $this->error = sprintf(format: 'Cannot get the value(s). Error: %s', values: ldap_error($this->ds));
+            $this->error = sprintf('Cannot get the value(s). Error: %s', ldap_error($this->ds));
 
             return false;
         }
@@ -339,7 +339,7 @@ public function getGroupMemberships(string $username): array|false
 
         if (!$entryId) {
             $this->errno = ldap_errno($this->ds);
-            $this->error = sprintf(format: 'Cannot get the value(s). Error: %s', values: ldap_error($this->ds));
+            $this->error = sprintf('Cannot get the value(s). Error: %s', ldap_error($this->ds));
 
             return false;
         }