Display the language key if no translation is available

application/helpers/language_helper.php

@@ -0,0 +1,42 @@
+<?php defined('BASEPATH') or exit('No direct script access allowed');
+
+/* ----------------------------------------------------------------------------
+ * Easy!Appointments - Online Appointment Scheduler
+ *
+ * @package     EasyAppointments
+ * @author      A.Tselegidis <alextselegidis@gmail.com>
+ * @copyright   Copyright (c) Alex Tselegidis
+ * @license     https://opensource.org/licenses/GPL-3.0 - GPLv3
+ * @link        https://easyappointments.org
+ * @since       v1.1.0
+ * ---------------------------------------------------------------------------- */
+
+
+if ( ! function_exists('lang'))
+{
+    /**
+     * Lang
+     *
+     * Fetches a language variable and optionally outputs a form label
+     *
+     * @param string $line The language line.
+     * @param string $for The "for" value (id of the form element).
+     * @param array $attributes Any additional HTML attributes.
+     *
+     * @return string
+     */
+    function lang(string $line, string $for = '', array $attributes = []): string
+    {
+        /** @var EA_Controller $CI */
+        $CI = get_instance();
+
+        $result = $CI->lang->line($line);
+
+        if ($for !== '')
+        {
+            $result = '<label for="' . $for . '"' . _stringify_attributes($attributes) . '>' . $result . '</label>';
+        }
+
+        return $result ?: $line;
+    }
+}