PHP 8.3 #[\Override] (#6273)

* PHP 8.3 #[\Override]
https://php.watch/versions/8.3/override-attr

With PHPStan `checkMissingOverrideMethodAttribute` https://phpstan.org/config-reference#checkmissingoverridemethodattribute

And modified the call to phpstan-next on the model of https://github.com/FreshRSS/Extensions/pull/228 (more robust than the find method, which gave some strange errors)

* Update extension example accordingly

1 files changed, 13 insertions, 2 deletions

diff --git a/docs/en/developers/03_Backend/05_Extensions.md b/docs/en/developers/03_Backend/05_Extensions.md
index 770ea29cc..602625cf8 100644
--- a/docs/en/developers/03_Backend/05_Extensions.md
+++ b/docs/en/developers/03_Backend/05_Extensions.md
@@ -132,15 +132,26 @@ The `Minz_Extension` abstract class defines another set of methods that should n
 You can register at the FreshRSS event system in an extensions `init()` method, to manipulate data when some of the core functions are executed.
 
 ```php
-class HelloWorldExtension extends Minz_Extension
+final class HelloWorldExtension extends Minz_Extension
 {
+	#[\Override]
 	public function init(): void {
 		$this->registerHook('entry_before_display', [$this, 'renderEntry']);
+		$this->registerHook('check_url_before_add', [self::class, 'checkUrl']);
 	}
+
 	public function renderEntry(FreshRSS_Entry $entry): FreshRSS_Entry {
-		$entry->_content('<h1>Hello World</h1>' . $entry->content());
+		$message = $this->getUserConfigurationValue('message');
+		$entry->_content("<h1>{$message}</h1>" . $entry->content());
 		return $entry;
 	}
+
+	public static function checkUrlBeforeAdd(string $url): string {
+		if (str_starts_with($url, 'https://')) {
+			return $url;
+		}
+		return null;
+	}
 }
 ```