Initial Release v1.0.0: Full feature set with Docker automation, Nginx/Alpine stack

app/Helpers/FlashHelper.php

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+<?php
+
+namespace App\Helpers;
+
+class FlashHelper {
+    const SESSION_KEY = 'flash_notification';
+
+    /**
+     * Set a flash message.
+     *
+     * @param string $type           Notification type: 'success', 'error', 'warning', 'info', 'question'
+     * @param string $title          Title of the notification (or i18n key)
+     * @param string $message        (Optional) Body text of the notification (or i18n key)
+     * @param array  $params         (Optional) Parameters for translation interpolation
+     * @param bool   $isTranslated   Whether to treat title and message as translation keys
+     */
+    public static function set($type, $title, $message = null, $params = [], $isTranslated = false) {
+        if (session_status() === PHP_SESSION_NONE) {
+            session_start();
+        }
+        
+        $_SESSION[self::SESSION_KEY] = [
+            'type'          => $type,
+            'title'         => $title,
+            'message'       => $message,
+            'params'        => $params,
+            'isTranslated'  => $isTranslated
+        ];
+    }
+
+    /**
+     * Check if a flash message exists.
+     *
+     * @return boolean
+     */
+    public static function has() {
+        if (session_status() === PHP_SESSION_NONE) {
+            session_start();
+        }
+        return isset($_SESSION[self::SESSION_KEY]);
+    }
+
+    /**
+     * Get the flash message and clear it from session.
+     *
+     * @return array|null
+     */
+    public static function get() {
+        if (session_status() === PHP_SESSION_NONE) {
+            session_start();
+        }
+
+        if (self::has()) {
+            $notification = $_SESSION[self::SESSION_KEY];
+            unset($_SESSION[self::SESSION_KEY]);
+            return $notification;
+        }
+
+        return null;
+    }
+}