Issue #3277590 by Abdullah Yassin: Have a Varbase installation requirement (...

Issue #3277590 by Abdullah Yassin: Have a Varbase installation requirement ( notification, not a blocker)

varbase.profile

@@ -14,6 +14,7 @@ use Drupal\varbase\Form\AssemblerForm;
 use Drupal\varbase\Form\DevelopmentToolsAssemblerForm;
 use Vardot\Entity\EntityDefinitionUpdateManager;
 use Drupal\path_alias\Entity\PathAlias;
+use Drupal\Component\Utility\Environment;
 
 /**
  * Implements hook_form_FORM_ID_alter() for install_configure_form().
@@ -713,3 +714,49 @@ function varbase_toolbar_alter(&$items) {
     $items['admin_toolbar_tools']['#attached']['library'][] = 'varbase/toolbar.icon';
   }
 }
+
+/**
+ * Implements hook_requirements().
+ */
+function varbase_requirements($phase) {
+  $requirements = [];
+  $phpVersion = phpversion();
+  $memoryLimit = ini_get('memory_limit');
+  $maxExecutionTime = ini_get('max_execution_time');
+
+  if ($phase === "install") {
+    if (version_compare($phpVersion, "8.0", "<")) {
+      $requirements['php'] = [
+        'title' => t('PHP'),
+        'description' => t('Your PHP installation is too old. It is recommended to upgrade to PHP version <b>%php_version</b> or higher for the best ongoing support. See <a href="http://php.net/supported-versions.php">PHP\'s version support documentation</a>', ['%php_version' => "8.0"]),
+        'severity' => REQUIREMENT_WARNING,
+      ];
+    }
+
+    if (!Environment::checkMemoryLimit(256, $memoryLimit)) {
+      $requirements['php_memory_limit'] = [
+        'title' => t('PHP memory limit'),
+        'description' => t('Consider increasing your PHP memory limit to <b>%memory_recommended_limit</b> M to help prevent errors in the installation process.', ['%memory_recommended_limit' => 256]),
+        'severity' => REQUIREMENT_WARNING,
+      ];
+    }
+
+    if ($maxExecutionTime < 180) {
+      $requirements['max_execution_time'] = [
+        'title' => t('Recommended maximum execution time'),
+        'description' => t('Your current setting for <b>max_execution_time</b> is less than <b>%recommended_max_execution_time</b>. Change your PHP settings or contact your server administrator to set it to the recommended value.', ['%recommended_max_execution_time' => 180]),
+        'severity' => REQUIREMENT_WARNING,
+      ];
+    }
+
+    if (!extension_loaded('yaml')) {
+      $requirements['php_yaml_extension'] = [
+        'title' => 'PHP YAML extension',
+        'description' => t('The PHP YAML extension is not enabled. It is recommended that you enable the PHP YAML extension for your server.'),
+        'severity' => REQUIREMENT_WARNING,
+      ];
+    }
+  }
+
+  return $requirements;
+}