Fixes #13226: yii cache command now warns about the fact that it's not able to flush APC cache from console

framework/CHANGELOG.md

@@ -4,6 +4,7 @@ Yii Framework 2 Change Log
 2.0.12 under development
 --------------------------
 
+- Enh #13226: `yii cache` command now warns about the fact that it's not able to flush APC cache from console (samdark)
 - Bug #11719: Fixed `yii\db\Connection::$enableQueryCache` caused infinite loop when the same connection was used for `yii\caching\DbCache` (michaelarnauts)
 - Bug #10346: Fixed "DOMException: Invalid Character Error" in `yii\web\XmlResponseFormatter::buildXml()` (sasha-ch)
 - Bug #13694: `yii\widgets\Pjax` now sends `X-Pjax-Url` header with response to fix redirect (wleona3, Faryshta)

framework/console/controllers/CacheController.php

@@ -8,6 +8,7 @@
 namespace yii\console\controllers;
 
 use Yii;
+use yii\caching\ApcCache;
 use yii\console\Controller;
 use yii\caching\Cache;
 use yii\helpers\Console;
@@ -32,7 +33,7 @@ use yii\console\Exception;
  * configured are different from web application, web application cache won't be cleared. In order to fix it please
  * duplicate web application cache components in console config. You can use any component names.
  *
- * Both APC and OpCache aren't shared between PHP processes so flushing cache from command line has no effect on web.
+ * APC is not shared between PHP processes so flushing cache from command line has no effect on web.
  * Flushing web cache could be either done by:
  *
  * - Putting a php file under web root and calling it via HTTP
@@ -99,7 +100,7 @@ class CacheController extends Controller
             $cachesInfo[] = [
                 'name' => $name,
                 'class' => $class,
-                'is_flushed' => Yii::$app->get($name)->flush(),
+                'is_flushed' => $this->canBeFlushed($class) ? Yii::$app->get($name)->flush() : false,
             ];
         }
 
@@ -123,7 +124,7 @@ class CacheController extends Controller
             $cachesInfo[] = [
                 'name' => $name,
                 'class' => $class,
-                'is_flushed' => Yii::$app->get($name)->flush(),
+                'is_flushed' => $this->canBeFlushed($class) ? Yii::$app->get($name)->flush() : false,
             ];
         }
 
@@ -178,7 +179,11 @@ class CacheController extends Controller
         $this->stdout("The following caches were found in the system:\n\n", Console::FG_YELLOW);
 
         foreach ($caches as $name => $class) {
+            if ($this->canBeFlushed($class)) {
                 $this->stdout("\t* $name ($class)\n", Console::FG_GREEN);
+            } else {
+                $this->stdout("\t* $name ($class) - can not be flushed via console\n", Console::FG_YELLOW);
+            }
         }
 
         $this->stdout("\n");
@@ -256,7 +261,7 @@ class CacheController extends Controller
         $findAll = ($cachesNames === []);
 
         foreach ($components as $name => $component) {
-            if (!$findAll && !in_array($name, $cachesNames)) {
+            if (!$findAll && !in_array($name, $cachesNames, true)) {
                 continue;
             }
 
@@ -281,4 +286,14 @@ class CacheController extends Controller
     {
         return is_subclass_of($className, Cache::className());
     }
+
+    /**
+     * Checks if cache of a certain class can be flushed
+     * @param string $className class name.
+     * @return bool
+     */
+    private function canBeFlushed($className)
+    {
+        return !is_a($className, ApcCache::className(), true) || php_sapi_name() !== "cli";
+    }
 }