diff --git a/php/src/Auth/AuthManager.php b/php/src/Auth/AuthManager.php
index 925ff89f..190964e4 100644
--- a/php/src/Auth/AuthManager.php
+++ b/php/src/Auth/AuthManager.php
@@ -34,7 +34,7 @@ readonly class AuthManager {
                 error_log(DataConst::GetSessionDirectory() . " has only less than 10KB free space. The login might not succeed because of that!");
             }
 
-            file_put_contents(DataConst::GetSessionDateFile(), (string)$dateTime);
+            file_put_contents(DataConst::GetSessionDateFile(), strval($dateTime));
         }
 
         $_SESSION[self::SESSION_KEY] = $isLoggedIn;
diff --git a/php/src/ContainerDefinitionFetcher.php b/php/src/ContainerDefinitionFetcher.php
index 7b092e45..0c6cd40d 100644
--- a/php/src/ContainerDefinitionFetcher.php
+++ b/php/src/ContainerDefinitionFetcher.php
@@ -38,13 +38,13 @@ readonly class ContainerDefinitionFetcher {
      */
     private function GetDefinition(): array
     {
-        $data = json_decode((string)file_get_contents(DataConst::GetContainersDefinitionPath()), true, 512, JSON_THROW_ON_ERROR);
+        $data = json_decode(strval(file_get_contents(DataConst::GetContainersDefinitionPath())), true, 512, JSON_THROW_ON_ERROR);
 
         $additionalContainerNames = [];
         foreach ($this->configurationManager->GetEnabledCommunityContainers() as $communityContainer) {
             if ($communityContainer !== '') {
                 $path = DataConst::GetCommunityContainersDirectory() . '/' . $communityContainer . '/' . $communityContainer . '.json';
-                $additionalData = json_decode((string)file_get_contents($path), true, 512, JSON_THROW_ON_ERROR);
+                $additionalData = json_decode(strval(file_get_contents($path)), true, 512, JSON_THROW_ON_ERROR);
                 $data = array_merge_recursive($data, $additionalData);
                 if (isset($additionalData['aio_services_v1'][0]['display_name']) && $additionalData['aio_services_v1'][0]['display_name'] !== '') {
                     // Store container_name of community containers in variable for later
diff --git a/php/src/Data/ConfigurationManager.php b/php/src/Data/ConfigurationManager.php
index 320bc477..b5db25f0 100644
--- a/php/src/Data/ConfigurationManager.php
+++ b/php/src/Data/ConfigurationManager.php
@@ -13,7 +13,7 @@ class ConfigurationManager
     {
         if(file_exists(DataConst::GetConfigFile()))
         {
-            $configContent = (string)file_get_contents(DataConst::GetConfigFile());
+            $configContent = strval(file_get_contents(DataConst::GetConfigFile()));
             return json_decode($configContent, true, 512, JSON_THROW_ON_ERROR);
         }
 
@@ -80,7 +80,7 @@ class ConfigurationManager
             return '';
         }
 
-        $content = (string)file_get_contents(DataConst::GetBackupArchivesList());
+        $content = strval(file_get_contents(DataConst::GetBackupArchivesList()));
 
         $lastBackupLines = explode("\n", $content);
         $lastBackupLine = "";
@@ -105,7 +105,7 @@ class ConfigurationManager
             return [];
         }
 
-        $content = (string)file_get_contents(DataConst::GetBackupArchivesList());
+        $content = strval(file_get_contents(DataConst::GetBackupArchivesList()));
 
         $backupLines = explode("\n", $content);
         $backupTimes = [];
@@ -374,7 +374,7 @@ class ConfigurationManager
             curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
             curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
             curl_setopt($ch, CURLOPT_TIMEOUT, 10);
-            $response = (string)curl_exec($ch);
+            $response = strval(curl_exec($ch));
             # Get rid of trailing \n
             $response = str_replace("\n", "", $response);
 
@@ -657,7 +657,7 @@ class ConfigurationManager
             return "";
         }
 
-        return trim((string)file_get_contents(DataConst::GetBackupPublicKey()));
+        return trim(strval(file_get_contents(DataConst::GetBackupPublicKey())));
     }
 
     public function GetBorgRestorePassword() : string {
@@ -814,7 +814,7 @@ class ConfigurationManager
         if (!file_exists(DataConst::GetDailyBackupTimeFile())) {
             return '';
         }
-        $dailyBackupFile = (string)file_get_contents(DataConst::GetDailyBackupTimeFile());
+        $dailyBackupFile = strval(file_get_contents(DataConst::GetDailyBackupTimeFile()));
         $dailyBackupFileArray = explode("\n", $dailyBackupFile);
         return $dailyBackupFileArray[0];
     }
@@ -823,7 +823,7 @@ class ConfigurationManager
         if (!file_exists(DataConst::GetDailyBackupTimeFile())) {
             return false;
         }
-        $dailyBackupFile = (string)file_get_contents(DataConst::GetDailyBackupTimeFile());
+        $dailyBackupFile = strval(file_get_contents(DataConst::GetDailyBackupTimeFile()));
         $dailyBackupFileArray = explode("\n", $dailyBackupFile);
         if (isset($dailyBackupFileArray[1]) && $dailyBackupFileArray[1] === 'automaticUpdatesAreNotEnabled') {
             return false;
@@ -874,7 +874,7 @@ class ConfigurationManager
         if (!file_exists(DataConst::GetAdditionalBackupDirectoriesFile())) {
             return '';
         }
-        return (string)file_get_contents(DataConst::GetAdditionalBackupDirectoriesFile());
+        return strval(file_get_contents(DataConst::GetAdditionalBackupDirectoriesFile()));
     }
 
     public function GetAdditionalBackupDirectoriesArray() : array {
diff --git a/php/src/Data/DataConst.php b/php/src/Data/DataConst.php
index 9111a98a..7883dba2 100644
--- a/php/src/Data/DataConst.php
+++ b/php/src/Data/DataConst.php
@@ -8,7 +8,7 @@ class DataConst {
             return '/mnt/docker-aio-config/data/';
         }
 
-        return (string)realpath(__DIR__ . '/../../data/');
+        return strval(realpath(__DIR__ . '/../../data/'));
     }
 
     public static function GetSessionDirectory() : string {
@@ -16,7 +16,7 @@ class DataConst {
             return '/mnt/docker-aio-config/session/';
         }
 
-        return (string)realpath(__DIR__ . '/../../session/');
+        return strval(realpath(__DIR__ . '/../../session/'));
     }
 
     public static function GetConfigFile() : string {
@@ -56,14 +56,14 @@ class DataConst {
     }
 
     public static function GetCommunityContainersDirectory() : string {
-        return (string)realpath(__DIR__ . '/../../../community-containers/');
+        return strval(realpath(__DIR__ . '/../../../community-containers/'));
     }
 
     public static function GetCollaboraSeccompProfilePath() : string {
-        return (string)realpath(__DIR__ . '/../../cool-seccomp-profile.json');
+        return strval(realpath(__DIR__ . '/../../cool-seccomp-profile.json'));
     }
 
     public static function GetContainersDefinitionPath() : string {
-        return (string)realpath(__DIR__ . '/../../containers.json');
+        return strval(realpath(__DIR__ . '/../../containers.json'));
     }
 }
diff --git a/php/src/Docker/DockerActionManager.php b/php/src/Docker/DockerActionManager.php
index 9e8a8ff2..d7aa38c8 100644
--- a/php/src/Docker/DockerActionManager.php
+++ b/php/src/Docker/DockerActionManager.php
@@ -54,7 +54,7 @@ readonly class DockerActionManager {
             throw $e;
         }
 
-        $responseBody = json_decode((string)$response->getBody(), true, 512, JSON_THROW_ON_ERROR);
+        $responseBody = json_decode(strval($response->getBody()), true, 512, JSON_THROW_ON_ERROR);
 
         if ($responseBody['State']['Running'] === true) {
             return ContainerState::Running;
@@ -74,7 +74,7 @@ readonly class DockerActionManager {
             throw $e;
         }
 
-        $responseBody = json_decode((string)$response->getBody(), true, 512, JSON_THROW_ON_ERROR);
+        $responseBody = json_decode(strval($response->getBody()), true, 512, JSON_THROW_ON_ERROR);
 
         if ($responseBody['State']['Restarting'] === true) {
             return ContainerState::Restarting;
@@ -150,16 +150,16 @@ readonly class DockerActionManager {
                 'containers/%s/logs?stdout=true&stderr=true&timestamps=true',
                 urlencode($id)
             ));
-        $responseBody = (string)$this->guzzleClient->get($url)->getBody();
+        $responseBody = strval($this->guzzleClient->get($url)->getBody());
 
         $response = "";
         $separator = "\r\n";
         $line = strtok($responseBody, $separator);
-        $response = substr((string)$line, 8) . $separator;
+        $response = substr(strval($line), 8) . $separator;
 
         while ($line !== false) {
             $line = strtok($separator);
-            $response .= substr((string)$line, 8) . $separator;
+            $response .= substr(strval($line), 8) . $separator;
         }
 
         return $response;
@@ -417,7 +417,7 @@ readonly class DockerActionManager {
         } elseif ($container->GetIdentifier() === 'nextcloud-aio-collabora') {
             if (!$this->configurationManager->isSeccompDisabled()) {
                 // Load reference seccomp profile for collabora
-                $seccompProfile = (string)file_get_contents(DataConst::GetCollaboraSeccompProfilePath());
+                $seccompProfile = strval(file_get_contents(DataConst::GetCollaboraSeccompProfilePath()));
                 $requestBody['HostConfig']['SecurityOpt'] = ["label:disable", "seccomp=$seccompProfile"];
             }
 
@@ -537,7 +537,7 @@ readonly class DockerActionManager {
         $placeholderPatterns = array_map(static fn(string $p) => '/' . preg_quote($p) . '/', $placeholders); // ["/%PLACEHOLDER1%/", ...]
         $placeholderValues = array_map($this->getPlaceholderValue(...), $placeholderNames); // ["val1", "val2"]
         // Guaranteed to be non-null because we found the placeholders in the preg_match_all.
-        return (string) preg_replace($placeholderPatterns, $placeholderValues, $envValue);
+        return strval(preg_replace($placeholderPatterns, $placeholderValues, $envValue));
     }
 
     private function getPlaceholderValue(string $placeholder) : string {
@@ -575,7 +575,7 @@ readonly class DockerActionManager {
             'NEXTCLOUD_TRUSTED_CACERTS_DIR' => $this->configurationManager->GetTrustedCacertsDir(),
             'ADDITIONAL_DIRECTORIES_BACKUP' => $this->configurationManager->GetAdditionalBackupDirectoriesString() !== '' ? 'yes' : '',
             'BORGBACKUP_HOST_LOCATION' => $this->configurationManager->GetBorgBackupHostLocation(),
-            'APACHE_MAX_SIZE' => (string)($this->configurationManager->GetApacheMaxSize()),
+            'APACHE_MAX_SIZE' => strval($this->configurationManager->GetApacheMaxSize()),
             'COLLABORA_SECCOMP_POLICY' => $this->configurationManager->GetCollaboraSeccompPolicy(),
             'NEXTCLOUD_STARTUP_APPS' => $this->configurationManager->GetNextcloudStartupApps(),
             'NEXTCLOUD_ADDITIONAL_APKS' => $this->configurationManager->GetNextcloudAdditionalApks(),
@@ -941,7 +941,7 @@ readonly class DockerActionManager {
             throw $e;
         }
 
-        $responseBody = json_decode((string)$response->getBody(), true, 512, JSON_THROW_ON_ERROR);
+        $responseBody = json_decode(strval($response->getBody()), true, 512, JSON_THROW_ON_ERROR);
 
         $exitCode = $responseBody['State']['ExitCode'];
         if (is_int($exitCode)) {
@@ -963,7 +963,7 @@ readonly class DockerActionManager {
             throw $e;
         }
 
-        $responseBody = json_decode((string)$response->getBody(), true, 512, JSON_THROW_ON_ERROR);
+        $responseBody = json_decode(strval($response->getBody()), true, 512, JSON_THROW_ON_ERROR);
 
         $exitCode = $responseBody['State']['ExitCode'];
         if (is_int($exitCode)) {
@@ -1002,7 +1002,7 @@ readonly class DockerActionManager {
                 return null;
             }
 
-            return str_replace('T', ' ', (string)$imageOutput['Created']);
+            return str_replace('T', ' ', strval($imageOutput['Created']));
         } catch (\Exception $e) {
             return null;
         }