API Refactor AppKernel into CoreKernel

cli-script.php

@@ -2,7 +2,7 @@
 
 // CLI specific bootstrapping
 use SilverStripe\Control\CLIRequestBuilder;
-use SilverStripe\Core\AppKernel;
+use SilverStripe\Core\CoreKernel;
 use SilverStripe\Core\HTTPApplication;
 
 require __DIR__ . '/src/includes/autoload.php';
@@ -17,7 +17,7 @@
 $request = CLIRequestBuilder::createFromEnvironment();
 
 // Default application
-$kernel = new AppKernel(BASE_PATH);
+$kernel = new CoreKernel(BASE_PATH);
 $app = new HTTPApplication($kernel);
 $response = $app->handle($request);
 $response->output();

docs/en/02_Developer_Guides/08_Performance/05_Resource_Usage.md

@@ -19,16 +19,11 @@ resources are required temporarily. In general, we recommend running resource in
 [command line](../cli), where configuration defaults for these settings are higher or even unlimited.
 
 <div class="info" markdown="1">
-SilverStripe can request more resources through `increase_memory_limit_to()` and `increase_time_limit_to()` functions.
+SilverStripe can request more resources through `Environment::increaseMemoryLimitTo()` and
+`Environment::increaseTimeLimitTo()` functions.
 </div>
 
 	:::php
-	function myBigFunction() {
-		increase_time_limit_to(400);
-
-		// or..
-		
-		set_increase_time_limit_max();
-
-		// ..
-	}
+	public function myBigFunction() {
+		Environment::increaseTimeLimitTo(400);
+	}

main.php

@@ -1,7 +1,7 @@
 <?php
 
 use SilverStripe\Control\HTTPRequestBuilder;
-use SilverStripe\Core\AppKernel;
+use SilverStripe\Core\CoreKernel;
 use SilverStripe\Core\HTTPApplication;
 use SilverStripe\Core\Startup\ErrorControlChainMiddleware;
 
@@ -11,7 +11,7 @@
 $request = HTTPRequestBuilder::createFromEnvironment();
 
 // Default application
-$kernel = new AppKernel(BASE_PATH);
+$kernel = new CoreKernel(BASE_PATH);
 $app = new HTTPApplication($kernel);
 $app->addMiddleware(new ErrorControlChainMiddleware($app));
 $response = $app->handle($request);