Add compatibility for strict types (#4548)

system/Debug/Toolbar.php

@@ -18,7 +18,9 @@
 use CodeIgniter\Format\JSONFormatter;
 use CodeIgniter\Format\XMLFormatter;
 use CodeIgniter\HTTP\DownloadResponse;
+use CodeIgniter\HTTP\IncomingRequest;
 use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\Response;
 use CodeIgniter\HTTP\ResponseInterface;
 use Config\Services;
 use Config\Toolbar as ToolbarConfig;
@@ -84,6 +86,11 @@ public function __construct(ToolbarConfig $config)
 	 */
 	public function run(float $startTime, float $totalTime, RequestInterface $request, ResponseInterface $response): string
 	{
+		/**
+		 * @var IncomingRequest $request
+		 * @var Response $response
+		 */
+
 		// Data items used within the view.
 		$data['url']             = current_url();
 		$data['method']          = $request->getMethod(true);
@@ -295,6 +302,11 @@ protected function roundTo(float $number, int $increments = 5): float
 	 */
 	public function prepare(RequestInterface $request = null, ResponseInterface $response = null)
 	{
+		/**
+		 * @var IncomingRequest $request
+		 * @var Response $response
+		 */
+
 		if (CI_DEBUG && ! is_cli())
 		{
 			global $app;
@@ -437,8 +449,8 @@ protected function format(string $data, string $format = 'html'): string
 		{
 			$history = new History();
 			$history->setFiles(
-					Services::request()->getGet('debugbar_time'),
-					$this->config->maxHistory
+				(int) Services::request()->getGet('debugbar_time'),
+				$this->config->maxHistory
 			);
 
 			$data['collectors'][] = $history->getAsArray();

system/View/Parser.php

@@ -570,6 +570,7 @@ protected function replaceSingle($pattern, $content, $template, bool $escape = f
 	{
 		// Any dollar signs in the pattern will be misinterpreted, so slash them
 		$pattern = addcslashes($pattern, '$');
+		$content = (string) $content;
 
 		// Flesh out the main pattern from the delimiters and escape the hash
 		// See https://regex101.com/r/IKdUlk/1
@@ -579,17 +580,15 @@ protected function replaceSingle($pattern, $content, $template, bool $escape = f
 		}
 
 		// Replace the content in the template
-		$template = preg_replace_callback($pattern, function ($matches) use ($content, $escape) {
+		return preg_replace_callback($pattern, function ($matches) use ($content, $escape) {
 			// Check for {! !} syntax to not escape this one.
 			if (strpos($matches[0], '{!') === 0 && substr($matches[0], -2) === '!}')
 			{
 				$escape = false;
 			}
 
 			return $this->prepareReplacement($matches, $content, $escape);
-		}, $template);
-
-		return $template;
+		}, (string) $template);
 	}
 
 	//--------------------------------------------------------------------