Use internal constant instead of private static property

Disabled PSR12.Properties.ConstantVisibility.NotFound CS rule, as we
still on PHP 5.6 in this library.

Signed-off-by: Michał Bundyra <[email protected]>

Author: michalbundyra

phpcs.xml

@@ -1,7 +1,9 @@
 <?xml version="1.0"?>
 <ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="./vendor/squizlabs/php_codesniffer/phpcs.xsd">
-    <rule ref="PSR12"/>
+    <rule ref="PSR12">
+        <exclude name="PSR12.Properties.ConstantVisibility.NotFound"/>
+    </rule>
     <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>
 
     <arg value="p"/>

src/ConfigPostProcessor.php

@@ -8,7 +8,6 @@
 
 namespace Laminas\ZendFrameworkBridge;
 
-use function array_flip;
 use function array_intersect_key;
 use function array_key_exists;
 use function array_pop;
@@ -22,8 +21,13 @@
 
 class ConfigPostProcessor
 {
-    /** @var array<string> */
-    private static $SERVICE_MANAGER_KEYS_OF_INTEREST = ['aliases', 'invokables', 'factories', 'services'];
+    /** @internal */
+    const SERVICE_MANAGER_KEYS_OF_INTEREST = [
+        'aliases'    => true,
+        'factories'  => true,
+        'invokables' => true,
+        'services'   => true,
+    ];
 
     /** @var array String keys => string values */
     private $exactReplacements = [
@@ -79,9 +83,7 @@ function ($value, array $keys) {
 
             // service- and pluginmanager handling
             function ($value) {
-                $keysOfInterest = self::$SERVICE_MANAGER_KEYS_OF_INTEREST;
-
-                return is_array($value) && array_intersect_key(array_flip($keysOfInterest), $value) !== []
+                return is_array($value) && array_intersect_key(self::SERVICE_MANAGER_KEYS_OF_INTEREST, $value) !== []
                     ? [$this, 'replaceDependencyConfiguration']
                     : null;
             },
@@ -257,8 +259,9 @@ private function replaceDependencyConfiguration(array $config)
         $config = $this->replaceDependencyFactories($config);
         $config = $this->replaceDependencyServices($config);
 
+        $keys = self::SERVICE_MANAGER_KEYS_OF_INTEREST;
         foreach ($config as $key => $data) {
-            if (in_array($key, self::$SERVICE_MANAGER_KEYS_OF_INTEREST, true)) {
+            if (isset($keys[$key])) {
                 continue;
             }