PHPStan Level 7 complete (#5406)

* PHPStan Level 7 complete

* Start PHPStan Level 8

* Forgot exclude .phtml

10 files changed, 92 insertions, 30 deletions

diff --git a/composer.json b/composer.json
index fe5a24b8f..bbac98bfb 100644
--- a/composer.json
+++ b/composer.json
@@ -61,7 +61,7 @@
         "phpcs": "phpcs . -s",
         "phpcbf": "phpcbf . -p -s",
         "phpstan": "phpstan analyse --memory-limit 512M .",
-        "phpstan-next": "phpstan analyse --level 7 --memory-limit 512M $(find . -type d -name 'vendor' -prune -o -name '*.php' -o -name '*.phtml' | grep -Fxvf ./tests/phpstan-next.txt | sort | paste -s -)",
+        "phpstan-next": "phpstan analyse --level 8 --memory-limit 512M $(find . -type d -name 'vendor' -prune -o -name '*.php' -o -name '*.phtml' | grep -Fxvf ./tests/phpstan-next.txt | sort | paste -s -)",
         "phpunit": "phpunit --bootstrap ./tests/bootstrap.php --verbose ./tests",
         "translations": "cli/manipulate.translation.php -a format",
         "test": [
diff --git a/lib/Minz/Configuration.php b/lib/Minz/Configuration.php
index 4ed0233f4..bbe20b153 100644
--- a/lib/Minz/Configuration.php
+++ b/lib/Minz/Configuration.php
@@ -9,7 +9,7 @@
  * @property-read string $environment
  * @property array<string,bool> $extensions_enabled
  * @property-read string $mailer
- * @property-read array<string|int|bool> $smtp
+ * @property-read array{'hostname':string,'host':string,'auth':bool,'username':string,'password':string,'secure':string,'port':int,'from':string} $smtp
  * @property string $title
  */
 class Minz_Configuration {
diff --git a/lib/Minz/Mailer.php b/lib/Minz/Mailer.php
index cf6c64bad..7cf99a667 100644
--- a/lib/Minz/Mailer.php
+++ b/lib/Minz/Mailer.php
@@ -34,7 +34,7 @@ class Minz_Mailer {
 
 	/** @var string */
 	private $mailer;
-	/** @var array<string|int|bool> */
+	/** @var array{'hostname':string,'host':string,'auth':bool,'username':string,'password':string,'secure':string,'port':int,'from':string} */
 	private $smtp_config;
 	/** @var int */
 	private $debug_level;
@@ -71,7 +71,7 @@ class Minz_Mailer {
 	public function mail(string $to, string $subject): bool {
 		ob_start();
 		$this->view->render();
-		$body = ob_get_contents();
+		$body = ob_get_contents() ?: '';
 		ob_end_clean();
 
 		PHPMailer::$validator = 'html5';
diff --git a/lib/Minz/Migrator.php b/lib/Minz/Migrator.php
index d6dbf94d1..e723934f1 100644
--- a/lib/Minz/Migrator.php
+++ b/lib/Minz/Migrator.php
@@ -12,7 +12,7 @@ class Minz_Migrator
 	/** @var string[] */
 	private $applied_versions;
 
-	/** @var array<string> */
+	/** @var array<callable> */
 	private $migrations = [];
 
 	/**
@@ -37,7 +37,7 @@ class Minz_Migrator
 		}
 		$applied_migrations = array_filter(explode("\n", $applied_migrations));
 
-		$migration_files = scandir($migrations_path);
+		$migration_files = scandir($migrations_path) ?: [];
 		$migration_files = array_filter($migration_files, static function (string $filename) {
 			$file_extension = pathinfo($filename, PATHINFO_EXTENSION);
 			return $file_extension === 'php';
@@ -131,7 +131,7 @@ class Minz_Migrator
 			return;
 		}
 
-		foreach (scandir($directory) as $filename) {
+		foreach (scandir($directory) ?: [] as $filename) {
 			$file_extension = pathinfo($filename, PATHINFO_EXTENSION);
 			if ($file_extension !== 'php') {
 				continue;
@@ -149,6 +149,10 @@ class Minz_Migrator
 					ADMIN_LOG
 				);
 			}
+
+			if (!is_callable($migration_callback)) {
+				throw new BadFunctionCallException("{$migration_version} migration cannot be called.");
+			}
 			$this->addMigration($migration_version, $migration_callback);
 		}
 	}
@@ -158,17 +162,11 @@ class Minz_Migrator
 	 *
 	 * @param string $version The version of the migration (be careful, migrations
 	 *                        are sorted with the `strnatcmp` function)
-	 * @param ?callable $callback The migration function to execute, it should
+	 * @param callable $callback The migration function to execute, it should
 	 *                           return true on success and must return false
 	 *                           on error
-	 *
-	 * @throws BadFunctionCallException if the callback isn’t callable.
 	 */
-	public function addMigration(string $version, ?callable $callback): void {
-		if (!is_callable($callback)) {
-			throw new BadFunctionCallException("{$version} migration cannot be called.");
-		}
-
+	public function addMigration(string $version, callable $callback): void {
 		$this->migrations[$version] = $callback;
 	}
 
diff --git a/lib/Minz/Pdo.php b/lib/Minz/Pdo.php
index 14acd484d..05015040a 100644
--- a/lib/Minz/Pdo.php
+++ b/lib/Minz/Pdo.php
@@ -50,7 +50,7 @@ abstract class Minz_Pdo extends PDO {
 	// PHP8+: PDO::prepare(string $query, array $options = []): PDOStatement|false
 	/**
 	 * @param string $query
-	 * @param array<int,string>|null $options
+	 * @param array<int,string> $options
 	 * @return PDOStatement|false
 	 * @phpstan-ignore-next-line
 	 */
diff --git a/lib/core-extensions/Google-Groups/extension.php b/lib/core-extensions/Google-Groups/extension.php
index cdd605cd9..eb30de5f9 100644
--- a/lib/core-extensions/Google-Groups/extension.php
+++ b/lib/core-extensions/Google-Groups/extension.php
@@ -6,6 +6,6 @@ class GoogleGroupsExtension extends Minz_Extension {
 	}
 
 	public static function findFeed(string $url): string {
-		return preg_replace('%^(https?://groups.google.com/forum)/#!forum/(.+)$%i', '$1/feed/$2/msgs/rss.xml', $url);
+		return preg_replace('%^(https?://groups.google.com/forum)/#!forum/(.+)$%i', '$1/feed/$2/msgs/rss.xml', $url) ?? '';
 	}
 }
diff --git a/lib/lib_date.php b/lib/lib_date.php
index c1b40ecf6..70c1517af 100644
--- a/lib/lib_date.php
+++ b/lib/lib_date.php
@@ -63,6 +63,7 @@ function _dateCeiling(string $isoDate): string {
 	return $x[0] . 'T' . $t;
 }
 
+/** @phpstan-return ($isoDate is null ? null : ($isoDate is '' ? null : string)) */
 function _noDelimit(?string $isoDate): ?string {
 	return $isoDate === null || $isoDate === '' ? null : str_replace(array('-', ':'), '', $isoDate);	//FIXME: Bug with negative time zone
 }
@@ -70,7 +71,8 @@ function _noDelimit(?string $isoDate): ?string {
 function _dateRelative(?string $d1, ?string $d2): ?string {
 	if ($d2 === null) {
 		return $d1 !== null && $d1[0] !== 'P' ? $d1 : null;
-	} elseif ($d2 !== '' && $d2[0] != 'P' && $d1 !== null && $d1[0] !== 'P') {
+	}
+	if ($d2 !== '' && $d2[0] != 'P' && $d1 !== null && $d1[0] !== 'P') {
 		$y2 = substr($d2, 0, 4);
 		if (strlen($y2) < 4 || !ctype_digit($y2)) {	//Does not start by a year
 			$d2 = _noDelimit($d2);
diff --git a/phpstan.neon b/phpstan.neon
index 07c2bb3bc..e9c37e44e 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,6 +1,6 @@
 parameters:
 	# TODO: Increase rule-level https://phpstan.org/user-guide/rule-levels
-	level: 6
+	level: 7
 	treatPhpDocTypesAsCertain: false
 	fileExtensions:
 		- php
diff --git a/tests/lib/Minz/MigratorTest.php b/tests/lib/Minz/MigratorTest.php
index 4ff02e837..1803e6e86 100644
--- a/tests/lib/Minz/MigratorTest.php
+++ b/tests/lib/Minz/MigratorTest.php
@@ -17,14 +17,6 @@ class MigratorTest extends TestCase
 		self::assertTrue($result);
 	}
 
-	public function testAddMigrationFailsIfUncallableMigration(): void {
-		$this->expectException(BadFunctionCallException::class);
-		$this->expectExceptionMessage('foo migration cannot be called.');
-
-		$migrator = new Minz_Migrator();
-		$migrator->addMigration('foo', null);
-	}
-
 	public function testMigrationsIsSorted(): void {
 		$migrator = new Minz_Migrator();
 		$migrator->addMigration('2_foo', function () {
diff --git a/tests/phpstan-next.txt b/tests/phpstan-next.txt
index eecd0f0ef..83945f2f1 100644
--- a/tests/phpstan-next.txt
+++ b/tests/phpstan-next.txt
@@ -1,7 +1,77 @@
 # List of files, which are not yet passing PHPStan level 7 https://phpstan.org/user-guide/rule-levels
 # Used for automated tests to avoid regressions in files already passing that level.
 # Can be regenerated with something like:
-# find . -type d -name 'vendor' -prune -o -name '*.php' -exec sh -c 'vendor/bin/phpstan analyse --level 7 --memory-limit 512M {} >/dev/null 2>/dev/null || echo {}' \;
+# find . -type d -name 'vendor' -prune -o -name '*.php' -exec sh -c 'vendor/bin/phpstan analyse --level 8 --memory-limit 512M {} >/dev/null 2>/dev/null || echo {}' \;
 
-./lib/Minz/Mailer.php
-./lib/Minz/Migrator.php
+./app/Controllers/apiController.php
+./app/Controllers/authController.php
+./app/Controllers/categoryController.php
+./app/Controllers/configureController.php
+./app/Controllers/feedController.php
+./app/Controllers/importExportController.php
+./app/Controllers/indexController.php
+./app/Controllers/javascriptController.php
+./app/Controllers/tagController.php
+./app/Controllers/updateController.php
+./app/Controllers/userController.php
+./app/install.php
+./app/layout/aside_configure.phtml
+./app/layout/aside_feed.phtml
+./app/layout/header.phtml
+./app/layout/layout.phtml
+./app/layout/nav_menu.phtml
+./app/layout/simple.phtml
+./app/Mailers/UserMailer.php
+./app/Models/Auth.php
+./app/Models/BooleanSearch.php
+./app/Models/Category.php
+./app/Models/Context.php
+./app/Models/DatabaseDAO.php
+./app/Models/DatabaseDAOPGSQL.php
+./app/Models/Entry.php
+./app/Models/Feed.php
+./app/Models/FeedDAO.php
+./app/Models/FormAuth.php
+./app/Models/Search.php
+./app/Models/Share.php
+./app/Models/StatsDAO.php
+./app/Services/ImportService.php
+./app/views/auth/index.phtml
+./app/views/configure/archiving.phtml
+./app/views/configure/display.phtml
+./app/views/configure/integration.phtml
+./app/views/configure/reading.phtml
+./app/views/configure/shortcut.phtml
+./app/views/configure/system.phtml
+./app/views/feed/contentSelectorPreview.phtml
+./app/views/helpers/category/update.phtml
+./app/views/helpers/configure/query.phtml
+./app/views/helpers/export/opml.phtml
+./app/views/helpers/extension/configure.phtml
+./app/views/helpers/extension/details.phtml
+./app/views/helpers/feed/update.phtml
+./app/views/helpers/index/normal/entry_bottom.phtml
+./app/views/helpers/index/normal/entry_header.phtml
+./app/views/helpers/javascript_vars.phtml
+./app/views/helpers/stream-footer.phtml
+./app/views/index/about.phtml
+./app/views/index/global.phtml
+./app/views/index/normal.phtml
+./app/views/index/reader.phtml
+./app/views/stats/idle.phtml
+./app/views/subscription/index.phtml
+./app/views/user/manage.phtml
+./app/views/user/profile.phtml
+./app/views/user/validateEmail.phtml
+./cli/_cli.php
+./cli/create-user.php
+./cli/delete-user.php
+./cli/do-install.php
+./cli/i18n/I18nData.php
+./cli/i18n/I18nValue.php
+./cli/list-users.php
+./cli/reconfigure.php
+./cli/user-info.php
+./lib/lib_install.php
+./lib/Minz/ModelPdo.php
+./lib/Minz/Translate.php