diff --git a/.changelog/current/2468-update-code-styling.md b/.changelog/current/2468-update-code-styling.md
new file mode 100644
index 000000000..267f4ae38
--- /dev/null
+++ b/.changelog/current/2468-update-code-styling.md
@@ -0,0 +1,3 @@
+# Maintenance
+
+- Update code styling of PHP files in accordance to Nextcloud preference
diff --git a/composer.lock b/composer.lock
index ff4064d15..181dae34e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -180,16 +180,16 @@
         },
         {
             "name": "nextcloud/coding-standard",
-            "version": "v1.2.1",
+            "version": "v1.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nextcloud/coding-standard.git",
-                "reference": "cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e"
+                "reference": "bc9c53a5306114b60c4363057aff9c2ed10a54da"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nextcloud/coding-standard/zipball/cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e",
-                "reference": "cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e",
+                "url": "https://api.github.com/repos/nextcloud/coding-standard/zipball/bc9c53a5306114b60c4363057aff9c2ed10a54da",
+                "reference": "bc9c53a5306114b60c4363057aff9c2ed10a54da",
                 "shasum": ""
             },
             "require": {
@@ -215,9 +215,9 @@
             "description": "Nextcloud coding standards for the php cs fixer",
             "support": {
                 "issues": "https://github.com/nextcloud/coding-standard/issues",
-                "source": "https://github.com/nextcloud/coding-standard/tree/v1.2.1"
+                "source": "https://github.com/nextcloud/coding-standard/tree/v1.2.3"
             },
-            "time": "2024-02-01T14:54:37+00:00"
+            "time": "2024-08-23T14:32:32+00:00"
         },
         {
             "name": "nextcloud/ocp",
@@ -432,16 +432,16 @@
         },
         {
             "name": "php-cs-fixer/shim",
-            "version": "v3.49.0",
+            "version": "v3.62.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHP-CS-Fixer/shim.git",
-                "reference": "f7d3219cac46632f12362c9aa7c2ac0d2fe92c52"
+                "reference": "7a91d5ce45c486f5b445d95901228507a02f60ae"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHP-CS-Fixer/shim/zipball/f7d3219cac46632f12362c9aa7c2ac0d2fe92c52",
-                "reference": "f7d3219cac46632f12362c9aa7c2ac0d2fe92c52",
+                "url": "https://api.github.com/repos/PHP-CS-Fixer/shim/zipball/7a91d5ce45c486f5b445d95901228507a02f60ae",
+                "reference": "7a91d5ce45c486f5b445d95901228507a02f60ae",
                 "shasum": ""
             },
             "require": {
@@ -478,9 +478,9 @@
             "description": "A tool to automatically fix PHP code style",
             "support": {
                 "issues": "https://github.com/PHP-CS-Fixer/shim/issues",
-                "source": "https://github.com/PHP-CS-Fixer/shim/tree/v3.49.0"
+                "source": "https://github.com/PHP-CS-Fixer/shim/tree/v3.62.0"
             },
-            "time": "2024-02-02T00:42:09+00:00"
+            "time": "2024-08-07T17:03:46+00:00"
         },
         {
             "name": "php-webdriver/webdriver",
diff --git a/lib/Db/RecipeDb.php b/lib/Db/RecipeDb.php
index ed75eebf6..97310eccb 100755
--- a/lib/Db/RecipeDb.php
+++ b/lib/Db/RecipeDb.php
@@ -48,7 +48,7 @@ public function findRecipeById(int $id) {
 		$cursor->closeCursor();
 
 		if ($row === false) {
-			throw new DoesNotExistException($this->l->t("Recipe with ID %d was not found in database.", [$id]));
+			throw new DoesNotExistException($this->l->t('Recipe with ID %d was not found in database.', [$id]));
 		}
 
 		$ret = [];
@@ -177,7 +177,7 @@ public function findAllKeywords(string $user_id) {
 		$cursor->closeCursor();
 
 		$result = array_map(function ($x) {
-			$x['recipe_count'] = (int) $x['recipe_count'];
+			$x['recipe_count'] = (int)$x['recipe_count'];
 			return $x;
 		}, $result);
 
@@ -206,7 +206,7 @@ public function findAllCategories(string $user_id) {
 		$cursor->closeCursor();
 
 		$result = array_map(function ($x) {
-			$x['recipe_count'] = (int) $x['recipe_count'];
+			$x['recipe_count'] = (int)$x['recipe_count'];
 			return $x;
 		}, $result);
 
@@ -235,7 +235,7 @@ public function findAllCategories(string $user_id) {
 
 		$result[] = [
 			'name' => '*',
-			'recipe_count' => (int) $row['cnt']
+			'recipe_count' => (int)$row['cnt']
 		];
 
 		$result = array_unique($result, SORT_REGULAR);
@@ -271,21 +271,21 @@ public function getRecipesByCategory(string $category, string $user_id) {
 			$qb->orderBy('r.name');
 		} else {
 			$qb->select(['r.recipe_id', 'r.name', 'r.date_created', 'r.date_modified', 'k.name AS keywords'])
-			->from(self::DB_TABLE_RECIPES, 'r')
-			->leftJoin('r', self::DB_TABLE_KEYWORDS, 'k', 'r.recipe_id = k.recipe_id')
-			->leftJoin(
-				'r',
-				self::DB_TABLE_CATEGORIES,
-				'c',
-				$qb->expr()->andX(
-					'r.user_id = c.user_id',
-					'r.recipe_id = c.recipe_id'
+				->from(self::DB_TABLE_RECIPES, 'r')
+				->leftJoin('r', self::DB_TABLE_KEYWORDS, 'k', 'r.recipe_id = k.recipe_id')
+				->leftJoin(
+					'r',
+					self::DB_TABLE_CATEGORIES,
+					'c',
+					$qb->expr()->andX(
+						'r.user_id = c.user_id',
+						'r.recipe_id = c.recipe_id'
+					)
 				)
-			)
-			->where(
-				$qb->expr()->eq('r.user_id', $qb->createNamedParameter($user_id, IQueryBuilder::PARAM_STR)),
-				$qb->expr()->isNull('c.name')
-			);
+				->where(
+					$qb->expr()->eq('r.user_id', $qb->createNamedParameter($user_id, IQueryBuilder::PARAM_STR)),
+					$qb->expr()->isNull('c.name')
+				);
 		}
 
 		$cursor = $qb->execute();
@@ -400,7 +400,7 @@ public function findRecipes(array $keywords, string $user_id) {
 
 	/**
 	 * @param array $results Array of recipes with double entries for different keywords
-	 * Group recipes by id and convert keywords to comma-separated list
+	 *                       Group recipes by id and convert keywords to comma-separated list
 	 */
 	public function groupKeywordInResult(array $result) {
 		$recipesGroupedTags = [];
@@ -477,7 +477,7 @@ public function deleteRecipes(array $ids, string $userId) {
 			$qb->orWhere(
 				$qb->expr()->andX(
 					$qb->expr()->eq('recipe_id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT)),
-					$qb->expr()->eq("user_id", $qb->createNamedParameter($userId, IQueryBuilder::PARAM_STR))
+					$qb->expr()->eq('user_id', $qb->createNamedParameter($userId, IQueryBuilder::PARAM_STR))
 				));
 		}
 
@@ -574,8 +574,8 @@ public function getCategoryOfRecipe(int $recipeId, string $userId) {
 		$qb = $this->db->getQueryBuilder();
 
 		$qb->select('name')
-		->from(self::DB_TABLE_CATEGORIES)
-		->where('recipe_id = :rid', 'user_id = :uid');
+			->from(self::DB_TABLE_CATEGORIES)
+			->where('recipe_id = :rid', 'user_id = :uid');
 
 		$qb->setParameter('rid', $recipeId);
 		$qb->setParameter('uid', $userId);
diff --git a/lib/Helper/Filter/JSON/ExtractImageUrlFilter.php b/lib/Helper/Filter/JSON/ExtractImageUrlFilter.php
index 22fce247a..656470ee5 100644
--- a/lib/Helper/Filter/JSON/ExtractImageUrlFilter.php
+++ b/lib/Helper/Filter/JSON/ExtractImageUrlFilter.php
@@ -81,7 +81,7 @@ public function apply(array &$json): bool {
 			$regex = preg_match_all('/\d+/', $img, $matches);
 
 			if ($regex !== false && $regex > 0) {
-				$sum = array_sum(array_map(fn ($x) => ((int) $x), $matches[0]));
+				$sum = array_sum(array_map(fn ($x) => ((int)$x), $matches[0]));
 
 				if ($sum > $maxSum) {
 					$json['image'] = $img;
diff --git a/lib/Helper/Filter/JSON/FixRecipeYieldFilter.php b/lib/Helper/Filter/JSON/FixRecipeYieldFilter.php
index a037fd6ed..777bd3020 100644
--- a/lib/Helper/Filter/JSON/FixRecipeYieldFilter.php
+++ b/lib/Helper/Filter/JSON/FixRecipeYieldFilter.php
@@ -51,7 +51,7 @@ public function apply(array &$json): bool {
 		}
 
 		if (is_float($json[self::YIELD]) || is_double($json[self::YIELD])) {
-			$json[self::YIELD] = (int) $json[self::YIELD];
+			$json[self::YIELD] = (int)$json[self::YIELD];
 			return true;
 		}
 
@@ -82,7 +82,7 @@ public function apply(array &$json): bool {
 				$count
 			));
 
-			$json[self::YIELD] = (int) $last;
+			$json[self::YIELD] = (int)$last;
 			return true;
 		}
 
diff --git a/lib/Helper/Filter/JSON/FixToolsFilter.php b/lib/Helper/Filter/JSON/FixToolsFilter.php
index 65290a23d..a5cf278b8 100644
--- a/lib/Helper/Filter/JSON/FixToolsFilter.php
+++ b/lib/Helper/Filter/JSON/FixToolsFilter.php
@@ -51,7 +51,7 @@ public function apply(array &$json): bool {
 			$t = $this->textCleaner->cleanUp($t, false);
 
 			// Empty string would mean no tools (i.e., empty array)
-			if($t != "") {
+			if($t != '') {
 				$tools[] = $t;
 			}
 		} else {
diff --git a/lib/Helper/Filter/JSON/SchemaConformityFilter.php b/lib/Helper/Filter/JSON/SchemaConformityFilter.php
index 5e1ec1803..920869665 100644
--- a/lib/Helper/Filter/JSON/SchemaConformityFilter.php
+++ b/lib/Helper/Filter/JSON/SchemaConformityFilter.php
@@ -12,6 +12,6 @@ public function apply(array &$json): bool {
 		$changed |= $this->setJSONValue($json, '@context', 'http://schema.org');
 		$changed |= $this->setJSONValue($json, '@type', 'Recipe');
 
-		return (bool) $changed;
+		return (bool)$changed;
 	}
 }
diff --git a/lib/Helper/ISO8601DurationHelper.php b/lib/Helper/ISO8601DurationHelper.php
index d039411e2..e4686914b 100644
--- a/lib/Helper/ISO8601DurationHelper.php
+++ b/lib/Helper/ISO8601DurationHelper.php
@@ -64,8 +64,8 @@ private function parseIsoFormat(string $duration): string {
 			// $matches[5] is the tome part of the string (like T4H5M6S)
 			// $matches[6] to $matches[8] is hours to seconds (like 4H 5M 6S)
 			$hours = (int)$matches[6];
-			$minutes = (int) ($matches[7] ?? 0);
-			$seconds = (int) ($matches[8] ?? 0);
+			$minutes = (int)($matches[7] ?? 0);
+			$seconds = (int)($matches[8] ?? 0);
 
 			while ($seconds >= 60) {
 				$seconds -= 60;
diff --git a/lib/Helper/TextCleanupHelper.php b/lib/Helper/TextCleanupHelper.php
index 5d5153612..65289d741 100644
--- a/lib/Helper/TextCleanupHelper.php
+++ b/lib/Helper/TextCleanupHelper.php
@@ -29,7 +29,7 @@ public function cleanUp(
 
 		$str = str_replace("\t", ' ', $str);
 		if($removeBackslashes) {
-			$str = str_replace("\\", '_', $str);
+			$str = str_replace('\\', '_', $str);
 		}
 
 		// We want to remove forward-slashes for the name of the recipe, to tie it to the directory structure, which cannot have slashes
diff --git a/lib/Helper/TimestampHelper.php b/lib/Helper/TimestampHelper.php
index a9836a3f8..a4ce951b8 100644
--- a/lib/Helper/TimestampHelper.php
+++ b/lib/Helper/TimestampHelper.php
@@ -90,7 +90,7 @@ private function parseIsoFormat(string $timestamp): string {
 	 * @throws InvalidTimestampException if $timestamp does not comply to ISO 8601 with week and weekday.
 	 */
 	private function parseIsoCalendarDateFormat(string $timestamp, string $dateSeparator = '-'): string {
-		$date = "Y".$dateSeparator."m".$dateSeparator."d";
+		$date = 'Y'.$dateSeparator.'m'.$dateSeparator.'d';
 
 		return $this->parseIsoTimestampWithTimeFormats($timestamp, $date);
 	}
@@ -143,19 +143,19 @@ private function parseIsoWeekDateFormat(string $timestamp, string $dateSeparator
 	 */
 	private function parseIsoTimestampWithTimeFormats(string $timestamp, string $dateFormat): string {
 		// Try parsing timestamp without milliseconds
-		$dt = DateTimeImmutable::createFromFormat($dateFormat . "\\TH:i:sP", $timestamp);
+		$dt = DateTimeImmutable::createFromFormat($dateFormat . '\\TH:i:sP', $timestamp);
 		if($dt) {
 			return $dt->format(self::OUTPUT_FORMAT);
 		}
 
 		// Try parsing timestamp with dot-separated milliseconds
-		$dt = DateTimeImmutable::createFromFormat($dateFormat . "\\TH:i:s.vP", $timestamp);
+		$dt = DateTimeImmutable::createFromFormat($dateFormat . '\\TH:i:s.vP', $timestamp);
 		if($dt) {
 			return $dt->format(self::OUTPUT_FORMAT);
 		}
 
 		// Try parsing timestamp with comma-separated milliseconds
-		$dt = DateTimeImmutable::createFromFormat($dateFormat . "\\TH:i:s,vP", $timestamp);
+		$dt = DateTimeImmutable::createFromFormat($dateFormat . '\\TH:i:s,vP', $timestamp);
 		if($dt) {
 			return $dt->format(self::OUTPUT_FORMAT);
 		}
diff --git a/lib/Service/DbCacheService.php b/lib/Service/DbCacheService.php
index 66ecebc51..0cc73afcf 100644
--- a/lib/Service/DbCacheService.php
+++ b/lib/Service/DbCacheService.php
@@ -160,7 +160,7 @@ private function parseJSONFile(File $jsonFile): array {
 			throw new InvalidJSONFileException($this->l->t('The JSON file in the folder with ID %d does not have a valid name.', [$id]));
 		}
 
-		$id = (int) $jsonFile->getParent()->getId();
+		$id = (int)$jsonFile->getParent()->getId();
 		$json['id'] = $id;
 
 		$json = $this->normalizeFileFilter->filter($json, $jsonFile, true);
diff --git a/lib/Service/RecipeService.php b/lib/Service/RecipeService.php
index a20459fd1..2f07b5db8 100755
--- a/lib/Service/RecipeService.php
+++ b/lib/Service/RecipeService.php
@@ -389,7 +389,7 @@ public function updateSearchIndex() {
 			$this->migrateFolderStructure();
 		} catch (UserFolderNotWritableException $ex) {
 			// Ignore migration if not permitted.
-			$this->logger->warning("Cannot migrate cookbook file structure as not permitted.");
+			$this->logger->warning('Cannot migrate cookbook file structure as not permitted.');
 			throw $ex;
 		}
 	}
diff --git a/tests/Integration/AbstractDatabaseTestCase.php b/tests/Integration/AbstractDatabaseTestCase.php
index a7c240ddb..947de881d 100644
--- a/tests/Integration/AbstractDatabaseTestCase.php
+++ b/tests/Integration/AbstractDatabaseTestCase.php
@@ -34,7 +34,7 @@ protected function tearDown(): void {
 	}
 
 	private function resetDataFolder() {
-		$cmd = "rsync -a --delete --delete-delay /dumps/current/plain/data/ /var/www/html/data";
+		$cmd = 'rsync -a --delete --delete-delay /dumps/current/plain/data/ /var/www/html/data';
 		$output = [];
 		$ret = 0;
 		exec($cmd, $output, $ret);
diff --git a/tests/Unit/Controller/Implementation/RecipeImplementationTest.php b/tests/Unit/Controller/Implementation/RecipeImplementationTest.php
index 079cae037..47fa1a7f8 100644
--- a/tests/Unit/Controller/Implementation/RecipeImplementationTest.php
+++ b/tests/Unit/Controller/Implementation/RecipeImplementationTest.php
@@ -415,7 +415,7 @@ public function testUpdateNoName(): void {
 
 		$data = ['a', 'new', 'array'];
 
-		$errorMsg = "No name was given for the recipe.";
+		$errorMsg = 'No name was given for the recipe.';
 		$ex = new NoRecipeNameGivenException($errorMsg);
 
 		$this->restParser->method('getParameters')->willReturn($data);
@@ -433,7 +433,7 @@ public function testUpdateConflictingName(): void {
 
 		$recipe = ['a', 'recipe', 'as', 'array'];
 
-		$errorMsg = "Another recipe with that name already exists";
+		$errorMsg = 'Another recipe with that name already exists';
 		$ex = new RecipeExistsException($errorMsg);
 
 		$this->restParser->method('getParameters')->willReturn($recipe);
@@ -476,7 +476,7 @@ public function testCreateNoName(): void {
 		$recipe = ['a', 'recipe', 'as', 'array'];
 		$this->restParser->method('getParameters')->willReturn($recipe);
 
-		$errorMsg = "The error that was triggered";
+		$errorMsg = 'The error that was triggered';
 		$ex = new NoRecipeNameGivenException($errorMsg);
 
 		$this->recipeService->expects($this->once())->method('addRecipe')->with($recipe)->willThrowException($ex);
@@ -516,13 +516,13 @@ public function testShow(): void {
 
 		$id = 123;
 		$recipe = [
-			'name' => "My Name",
+			'name' => 'My Name',
 			'description' => 'a useful description',
 			'id' => $id,
 		];
 		$this->recipeService->method('getRecipeById')->with($id)->willReturn($recipe);
 		$this->recipeService->method('getPrintImage')->willReturn(true);
-		$imageUrl = "/path/to/image/of/id/123";
+		$imageUrl = '/path/to/image/of/id/123';
 
 		$this->urlGenerator->method('linkToRoute')->with(
 			'cookbook.recipe.image',
diff --git a/tests/Unit/Helper/FileSystem/RecipeNameHelperTest.php b/tests/Unit/Helper/FileSystem/RecipeNameHelperTest.php
index ae2a2f8d2..29aa2e1cd 100644
--- a/tests/Unit/Helper/FileSystem/RecipeNameHelperTest.php
+++ b/tests/Unit/Helper/FileSystem/RecipeNameHelperTest.php
@@ -34,7 +34,7 @@ public function dpGetFolderName() {
 			'102 chars' => ["{$ninetyChars}123456789012", "{$ninetyChars}1234567___"],
 			'105 chars' => ["{$ninetyChars}123456789012345", "{$ninetyChars}1234567___"],
 			'special chars' => ['a/b:c?d!e"f|g\\h\'i^j&k#l', 'a_b_c_d_e_f_g_h_i_j_k_l'],
-			'greek chars' => ["Τραγανή granola χωρίς ζάχαρη με ό,τι ξηρούς καρπούς & αποξηραμένα φρούτα έχεις στο ντουλάπι σου", "Τραγανή granola χωρίς ζάχαρη με ό,τι ξηρούς καρπούς _ αποξηραμένα φρούτα έχεις στο ντουλάπι σου"],
+			'greek chars' => ['Τραγανή granola χωρίς ζάχαρη με ό,τι ξηρούς καρπούς & αποξηραμένα φρούτα έχεις στο ντουλάπι σου', 'Τραγανή granola χωρίς ζάχαρη με ό,τι ξηρούς καρπούς _ αποξηραμένα φρούτα έχεις στο ντουλάπι σου'],
 		];
 	}
 
diff --git a/tests/Unit/Helper/Filter/DB/RecipeNameLengthFilterTest.php b/tests/Unit/Helper/Filter/DB/RecipeNameLengthFilterTest.php
index e8a7a7315..4e8db9e8f 100644
--- a/tests/Unit/Helper/Filter/DB/RecipeNameLengthFilterTest.php
+++ b/tests/Unit/Helper/Filter/DB/RecipeNameLengthFilterTest.php
@@ -21,7 +21,7 @@ public function dp() {
 		yield ['abc', 'abc', false];
 		yield ['äöü', 'äöü', false];
 
-		$tenChars = "0123456789";
+		$tenChars = '0123456789';
 		$twentyChars = "$tenChars$tenChars";
 		$fiftyChars = $twentyChars . $twentyChars . $tenChars;
 		$hundredTwenty = $fiftyChars . $fiftyChars . $twentyChars;
diff --git a/tests/Unit/Helper/Filter/JSON/FixDescriptionFilterTest.php b/tests/Unit/Helper/Filter/JSON/FixDescriptionFilterTest.php
index bff9eea33..a5176f4aa 100644
--- a/tests/Unit/Helper/Filter/JSON/FixDescriptionFilterTest.php
+++ b/tests/Unit/Helper/Filter/JSON/FixDescriptionFilterTest.php
@@ -47,9 +47,9 @@ public function testNonExisting() {
 
 	public function dpApply() {
 		return [
-			["abc", "abc", "abc", false],
+			['abc', 'abc', 'abc', false],
 			["abc\n\ndef", "abc\n\ndef", "abc\n\ndef", false],
-			["abc\n\n", "abc\n\n", "abc", true],
+			["abc\n\n", "abc\n\n", 'abc', true],
 			// ["abc\n\n", "abc", true],
 		];
 	}
diff --git a/tests/Unit/Helper/Filter/JSON/FixRecipeYieldFilterTest.php b/tests/Unit/Helper/Filter/JSON/FixRecipeYieldFilterTest.php
index 665c17b06..1ed47ef71 100644
--- a/tests/Unit/Helper/Filter/JSON/FixRecipeYieldFilterTest.php
+++ b/tests/Unit/Helper/Filter/JSON/FixRecipeYieldFilterTest.php
@@ -47,8 +47,8 @@ public function dp() {
 			[3.4,3,true],
 			[[2], 2, true],
 			[[4.6], 4, true],
-			["3", 3, true],
-			["123 456", 456, true],
+			['3', 3, true],
+			['123 456', 456, true],
 			[[4,5], 5, true],
 			['', 1, true],
 			['one two three', 1, true],
diff --git a/tests/Unit/Helper/Filter/JSON/TimezoneFixFilterTest.php b/tests/Unit/Helper/Filter/JSON/TimezoneFixFilterTest.php
index e1daf47a5..a53c295b2 100644
--- a/tests/Unit/Helper/Filter/JSON/TimezoneFixFilterTest.php
+++ b/tests/Unit/Helper/Filter/JSON/TimezoneFixFilterTest.php
@@ -25,11 +25,11 @@ public function db() {
 		$hours = sprintf('%+03d00', $offset / 3600);
 
 		yield ["2024-05-20T10:12:00$hours", "2024-05-20T10:12:00$hours", false];
-		yield ["2024-05-20T10:12:00", "2024-05-20T10:12:00$hours", true];
+		yield ['2024-05-20T10:12:00', "2024-05-20T10:12:00$hours", true];
 		yield ["2024-05-20T10:12:00.20$hours", "2024-05-20T10:12:00.20$hours", false];
-		yield ["2024-05-20T10:12:00.20", "2024-05-20T10:12:00.20$hours", true];
+		yield ['2024-05-20T10:12:00.20', "2024-05-20T10:12:00.20$hours", true];
 		yield ["2024-05-20T1:12:00$hours", "2024-05-20T1:12:00$hours", false];
-		yield ["2024-05-20T1:12:00", "2024-05-20T1:12:00$hours", true];
+		yield ['2024-05-20T1:12:00', "2024-05-20T1:12:00$hours", true];
 	}
 
 	/** @dataProvider db */
diff --git a/tests/Unit/Helper/HTMLParser/HttpMicrodataParserTest.php b/tests/Unit/Helper/HTMLParser/HttpMicrodataParserTest.php
index 958c930c2..2f22f3364 100644
--- a/tests/Unit/Helper/HTMLParser/HttpMicrodataParserTest.php
+++ b/tests/Unit/Helper/HTMLParser/HttpMicrodataParserTest.php
@@ -86,7 +86,7 @@ public function imageAttributes() {
 	public function testImageVariantsAsAttribute($attribute): void {
 		$l = $this->createStub(IL10N::class);
 		$parser = new HttpMicrodataParser($l);
-		$content = file_get_contents(__DIR__ . "/res_Microdata/caseImageAttribute.html");
+		$content = file_get_contents(__DIR__ . '/res_Microdata/caseImageAttribute.html');
 		$content = str_replace('%IMAGE_NAME%', $attribute, $content);
 
 		$this->finishTest($parser, $content, 'caseImage.json');
@@ -99,7 +99,7 @@ public function testImageVariantsAsAttribute($attribute): void {
 	public function testImageVariantsAsContent($attribute): void {
 		$l = $this->createStub(IL10N::class);
 		$parser = new HttpMicrodataParser($l);
-		$content = file_get_contents(__DIR__ . "/res_Microdata/caseImageContent.html");
+		$content = file_get_contents(__DIR__ . '/res_Microdata/caseImageContent.html');
 		$content = str_replace('%IMAGE_NAME%', $attribute, $content);
 
 		$this->finishTest($parser, $content, 'caseImage.json');
@@ -118,7 +118,7 @@ public function ingredientVariantAttributes() {
 	public function testIngredientVariants($attribute): void {
 		$l = $this->createStub(IL10N::class);
 		$parser = new HttpMicrodataParser($l);
-		$content = file_get_contents(__DIR__ . "/res_Microdata/caseIngredient.html");
+		$content = file_get_contents(__DIR__ . '/res_Microdata/caseIngredient.html');
 		$content = str_replace('%INGREDIENT_NAME%', $attribute, $content);
 
 		$this->finishTest($parser, $content, 'caseIngredient.json');
@@ -138,7 +138,7 @@ public function instructionVariantAttributes() {
 	public function testInstructionVariants($attribute): void {
 		$l = $this->createStub(IL10N::class);
 		$parser = new HttpMicrodataParser($l);
-		$content = file_get_contents(__DIR__ . "/res_Microdata/caseInstruction.html");
+		$content = file_get_contents(__DIR__ . '/res_Microdata/caseInstruction.html');
 		$content = str_replace('%INSTRUCTION_NAME%', $attribute, $content);
 
 		$this->finishTest($parser, $content, 'caseInstruction.json');
diff --git a/tests/Unit/Helper/HtmlToDomParserTest.php b/tests/Unit/Helper/HtmlToDomParserTest.php
index b21623d99..d3ff48f68 100644
--- a/tests/Unit/Helper/HtmlToDomParserTest.php
+++ b/tests/Unit/Helper/HtmlToDomParserTest.php
@@ -158,21 +158,21 @@ public function testParsing($successDomParsing, $stateAtEnd, $errors, $numErrors
 
 	public function dataProviderParsing() {
 		return [
-			"failedParsing" => [
+			'failedParsing' => [
 				false,
 				null,
 				[],
 				[0,0,0],
 				false,
 			],
-			"parsingWithoutErrors" => [
+			'parsingWithoutErrors' => [
 				true,
 				HtmlToDomParser::PARSING_SUCCESS,
 				[],
 				[0,0,0],
 				false,
 			],
-			"parsingWithSingleWarning" => [
+			'parsingWithSingleWarning' => [
 				true,
 				HtmlToDomParser::PARSING_WARNING,
 				[
@@ -181,7 +181,7 @@ public function dataProviderParsing() {
 				[0,0,1],
 				false,
 			],
-			"parsingWithSingleError" => [
+			'parsingWithSingleError' => [
 				true,
 				HtmlToDomParser::PARSING_ERROR,
 				[
@@ -190,7 +190,7 @@ public function dataProviderParsing() {
 				[0,1,0],
 				false,
 			],
-			"parsingWithSingleFatal" => [
+			'parsingWithSingleFatal' => [
 				true,
 				HtmlToDomParser::PARSING_FATAL_ERROR,
 				[
@@ -199,7 +199,7 @@ public function dataProviderParsing() {
 				[1,0,0],
 				false,
 			],
-			"parsingWithAllTypes" => [
+			'parsingWithAllTypes' => [
 				true,
 				HtmlToDomParser::PARSING_FATAL_ERROR,
 				[
@@ -213,7 +213,7 @@ public function dataProviderParsing() {
 				[1,2,3],
 				false,
 			],
-			"parsingWithAllTypes" => [
+			'parsingWithAllTypes' => [
 				true,
 				HtmlToDomParser::PARSING_ERROR,
 				[
@@ -230,7 +230,7 @@ public function dataProviderParsing() {
 				[0,2,3],
 				false,
 			],
-			"parsingWithWrongXMLError" => [
+			'parsingWithWrongXMLError' => [
 				true,
 				HtmlToDomParser::PARSING_SUCCESS,
 				[
@@ -285,8 +285,8 @@ public function testLogging(): void {
 		$this->logger->expects($this->exactly(2))
 			->method('warning')
 			->withConsecutive(
-				["libxml: Error %u occurred %n times while parsing %s. First time it occurred in line %u and column %u: The message"],
-				["libxml: Error %u occurred %n times while parsing %s. First time it occurred in line %u and column %u: The message"]
+				['libxml: Error %u occurred %n times while parsing %s. First time it occurred in line %u and column %u: The message'],
+				['libxml: Error %u occurred %n times while parsing %s. First time it occurred in line %u and column %u: The message']
 			);
 		$this->logger->expects($this->exactly(0))
 			->method('error');
diff --git a/tests/Unit/Helper/TextCleanupHelperTest.php b/tests/Unit/Helper/TextCleanupHelperTest.php
index b5f0eae50..eb2891ef6 100644
--- a/tests/Unit/Helper/TextCleanupHelperTest.php
+++ b/tests/Unit/Helper/TextCleanupHelperTest.php
@@ -20,7 +20,7 @@ public function dpCleanUp() {
 			["A\r\nfew\nlines with/NL", true, false, 'A few lines with/NL'],
 			["A/few/words with\nslashes", false, true, "A_few_words with\nslashes"],
 			["Both/newlines\nand//slashes", true, true, 'Both_newlines and__slashes'],
-			["With\tTabs", false, false, "With Tabs"],
+			["With\tTabs", false, false, 'With Tabs'],
 			['With\\backslash\\', false, false, 'With_backslash_'],
 			['äÜß&', false, false, 'äÜß&'],
 			[null, false, false, ''],
diff --git a/tests/Unit/Helper/UserConfigHelperTest.php b/tests/Unit/Helper/UserConfigHelperTest.php
index caac97da5..e2f6fa727 100644
--- a/tests/Unit/Helper/UserConfigHelperTest.php
+++ b/tests/Unit/Helper/UserConfigHelperTest.php
@@ -100,10 +100,10 @@ public function testPrintImage() {
 			->willReturnOnConsecutiveCalls('0', '1', '0');
 
 		$this->config->expects($this->exactly(2))->method('setUserValue')
-		->withConsecutive(
-			[$this->userId, 'cookbook', 'print_image', '1'],
-			[$this->userId, 'cookbook', 'print_image', '0']
-		);
+			->withConsecutive(
+				[$this->userId, 'cookbook', 'print_image', '1'],
+				[$this->userId, 'cookbook', 'print_image', '0']
+			);
 
 		$this->assertFalse($this->dut->getPrintImage());
 		$this->dut->setPrintImage(true);
diff --git a/tests/Unit/Service/JsonServiceTest.php b/tests/Unit/Service/JsonServiceTest.php
index 16efbf4af..448dcb919 100644
--- a/tests/Unit/Service/JsonServiceTest.php
+++ b/tests/Unit/Service/JsonServiceTest.php
@@ -17,17 +17,17 @@ public function setUp(): void {
 
 	public function testIsSchemaObject() {
 		// Objects must be encoded as arrays in JSON
-		$testData = "notAnArray";
+		$testData = 'notAnArray';
 		$result = $this->service->isSchemaObject($testData);
 		self::assertFalse($result, 'The object must be an array');
 
 		// Objects must have a property @context
 		$testData = [
-			"@type" => "Recipe",
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'@type' => 'Recipe',
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->isSchemaObject($testData);
@@ -37,12 +37,12 @@ public function testIsSchemaObject() {
 
 		// Context must be in schema.org domain
 		$testData = [
-			"@context" => "https://schema.com/",
+			'@context' => 'https://schema.com/',
 			'@type' => 'Recipe',
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->isSchemaObject($testData);
@@ -51,11 +51,11 @@ public function testIsSchemaObject() {
 
 		// Objects must have a property @type
 		$testData = [
-			"@context" => "https://schema.org/",
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'@context' => 'https://schema.org/',
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->isSchemaObject($testData);
@@ -64,12 +64,12 @@ public function testIsSchemaObject() {
 
 		// No typecheck will be requested
 		$testData = [
-			"@context" => "https://schema.org/",
-			"@type" => "Thing",
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'@context' => 'https://schema.org/',
+			'@type' => 'Thing',
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->isSchemaObject($testData);
@@ -79,12 +79,12 @@ public function testIsSchemaObject() {
 
 		// Check if type matches
 		$testData = [
-			"@context" => "https://schema.org/",
-			"@type" => "Thing",
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'@context' => 'https://schema.org/',
+			'@type' => 'Thing',
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->isSchemaObject($testData, 'Thing');
@@ -98,12 +98,12 @@ public function testIsSchemaObject() {
 	public function testHasProperty() {
 		// The method isSchemaObject() is tested in another test and assumed as working properly
 		$testData = [
-			"@context" => "https://schema.org/",
-			"@type" => "Thing",
-			"name" => "Schema.org Ontology",
-			"subjectOf" => [
-				"@type" => "Book",
-				"name" => "The Complete History of Schema.org"
+			'@context' => 'https://schema.org/',
+			'@type' => 'Thing',
+			'name' => 'Schema.org Ontology',
+			'subjectOf' => [
+				'@type' => 'Book',
+				'name' => 'The Complete History of Schema.org'
 			]
 		];
 		$result = $this->service->hasProperty($testData, 'name');
diff --git a/tests/bootstrap_helper.php b/tests/bootstrap_helper.php
index 46a0f234b..e96532e81 100755
--- a/tests/bootstrap_helper.php
+++ b/tests/bootstrap_helper.php
@@ -9,7 +9,7 @@ function resetEnvironmentToBackup(string $name = 'main', bool $forceprint = fals
 		print_r($output);
 		echo "Return value: $ret\n";
 		if ($ret !== 0) {
-			throw new Exception("Could not reset environment");
+			throw new Exception('Could not reset environment');
 		}
 	}
 }
@@ -29,7 +29,7 @@ function runOCCCommand(array $args, bool $forceprint = false) {
 		print_r($output);
 		echo "Return value: $ret\n";
 		if ($ret !== 0) {
-			throw new Exception("Could not run OCC command");
+			throw new Exception('Could not run OCC command');
 		}
 	}
 }