diff --git a/.gitignore b/.gitignore
index 3dd84d9..d20187c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,4 @@
 
 
 locales/po/*.mo
+.omc/
diff --git a/audit.php b/audit.php
index dffed41..2474af4 100644
--- a/audit.php
+++ b/audit.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
@@ -61,8 +63,8 @@
 		} elseif (cacti_sizeof($data)) {
 			$attribs = json_decode($data['post']);
 
-			$nattribs = array();
-			foreach($attribs as $field => $content) {
+			$nattribs = [];
+			foreach(($attribs ?? []) as $field => $content) {
 				$nattribs[$field] = $content;
 			}
 			ksort($nattribs);
@@ -107,12 +109,12 @@
 				}
 
 				if ($i % $columns > 0) {
-					$output . '<td></td><td></td></tr>';
+					$output .= '<td></td><td></td></tr>';
 				}
 			}
 
 			// Display the Record Data under selected_items if it is not empty
-			$recordData = json_decode($data['object_data']);
+			$recordData = json_decode($data['object_data'] ?? '');
 			if (!empty($recordData)) {
 				$output .= '</table>';
 				$output .= '<tr><td colspan="' . ($columns * 2) . '"><hr></td></tr>';
@@ -181,7 +183,7 @@ function audit_export_rows() {
 		foreach($events as $event) {
 			$post = json_decode($event['post']);
 			$poster = '';
-			foreach($post as $var => $value) {
+			foreach(($post ?? []) as $var => $value) {
 				if (is_array($value)) {
 					$poster .= ($poster != '' ? '|':'') . $var . ':' . implode('%', $value);
 				} else {
@@ -211,40 +213,40 @@ function audit_csv_escape($string) {
 function process_request_vars() {
 	/* ================= input validation and session storage ================= */
 	$filters = array(
-		'rows' => array(
+		'rows' => [
 			'filter' => FILTER_VALIDATE_INT,
 			'pageset' => true,
 			'default' => '-1'
-			),
-		'page' => array(
+			],
+		'page' => [
 			'filter' => FILTER_VALIDATE_INT,
 			'default' => '1'
-			),
-		'filter' => array(
+			],
+		'filter' => [
 			'filter' => FILTER_DEFAULT,
 			'pageset' => true,
 			'default' => ''
-			),
+			],
 		'sort_column' => array(
 			'filter' => FILTER_CALLBACK,
 			'default' => 'event_time',
-			'options' => array('options' => 'sanitize_search_string')
+			'options' => ['options' => 'sanitize_search_string']
 			),
 		'sort_direction' => array(
 			'filter' => FILTER_CALLBACK,
 			'default' => 'DESC',
-			'options' => array('options' => 'sanitize_search_string')
+			'options' => ['options' => 'sanitize_search_string']
 			),
-		'user_id' => array(
+		'user_id' => [
 			'filter' => FILTER_VALIDATE_INT,
 			'pageset' => true,
 			'default' => '-1'
-			),
+			],
 		'event_page' => array(
 			'filter' => FILTER_CALLBACK,
 			'pageset' => true,
 			'default' => '-1',
-			'options' => array('options' => 'sanitize_search_string')
+			'options' => ['options' => 'sanitize_search_string']
 			)
 	);
 
diff --git a/audit_functions.php b/audit_functions.php
index 6a93705..ba450e0 100644
--- a/audit_functions.php
+++ b/audit_functions.php
@@ -1,7 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
 function audit_process_page_data($page, $drop_action, $selected_items) {
-	$objects = array();
+	$objects = [];
+
+	if (!is_string($page) || $page === '' || !is_array($selected_items)) {
+		return json_encode($objects);
+	}
+
 	if ($drop_action !== false) {
 		switch ($page) {
 			case 'host.php':
@@ -10,7 +17,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT id AS host_id,site_id,description,hostname,status,status_fail_date AS last_failed_date,status_rec_date AS last_recovered_date
 							FROM host
 							WHERE id IN (?)',
-							array($item));
+							[$item]);
 			}
 				break;
 			case 'host_templates.php':
@@ -18,7 +25,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM host_template
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 
@@ -26,7 +33,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					foreach ($selected_items as $item) {
 						$objects[] = db_fetch_assoc_prepared('SELECT name  FROM graph_templates
 							WHERE id IN (?)',
-							array($item));
+							[$item]);
 					}
 					break;
 
@@ -36,7 +43,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 						$result = db_fetch_assoc_prepared('SELECT id, network_id,hostname,ip,sysName,syslocation,snmp,up
 							FROM automation_devices
 							WHERE id IN (?)',
-							array($item));
+							[$item]);
 
 						foreach ($result as &$row) {
 							$row['snmp'] = ($row['snmp'] == 1) ? 'UP' : 'Down';
@@ -53,7 +60,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM graph_templates
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 
@@ -62,14 +69,14 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT id,name_cache AS THOLD_NAME,data_source_name AS Data_Source
 						FROM thold_data
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 			case 'data_sources.php':
 				foreach ($selected_items as $item) {
 					$objects[] = db_fetch_assoc_prepared('select name_cache AS Data_Source_Name,active  from data_template_data
 						WHERE local_data_id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 
@@ -78,7 +85,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM data_template
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 
@@ -87,7 +94,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM aggregate_graph_template
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 
@@ -96,7 +103,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM thold_template
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 			case 'user_admin.php':
@@ -104,7 +111,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT username
 						FROM user_auth
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 			case 'user_group_admin.php':
@@ -112,7 +119,7 @@ function audit_process_page_data($page, $drop_action, $selected_items) {
 					$objects[] = db_fetch_assoc_prepared('SELECT name
 						FROM user_auth_group
 						WHERE id IN (?)',
-						array($item));
+						[$item]);
 				}
 				break;
 		}
@@ -148,10 +155,10 @@ function audit_config_insert() {
 
 		/* sanitize and serialize selected items */
 		if (isset($post['selected_items'])) {
-			$selected_items = unserialize(stripslashes($post['selected_items']), array('allowed_classes' => false));
+			$selected_items = unserialize(stripslashes($post['selected_items']), ['allowed_classes' => false]);
 			$drop_action    = $post['drp_action'];
 		} else {
-			$selected_items = array();
+			$selected_items = [];
 			$drop_action    = false;
 		}
 
@@ -209,7 +216,7 @@ function audit_config_insert() {
 
 		db_execute_prepared('INSERT INTO audit_log (page, user_id, action, ip_address, user_agent, event_time, post, object_data)
 			VALUES (?, ?, ?, ?, ?, ?, ?, ?)',
-			array($page, $user_id, $action, $ip_address, $user_agent, $event_time, $post, $object_data));
+			[$page, $user_id, $action, $ip_address, $user_agent, $event_time, $post, $object_data]);
 
 		if ($audit_log == '') {
 			set_config_option('audit_log_external_path', $base . '/log/audit.log');
@@ -226,7 +233,7 @@ function audit_config_insert() {
 		}
 
 		if (read_config_option('audit_log_external') == 'on' && $audit_log != '' && file_exists($audit_log))  {
-			$log_data = array(
+			$log_data = [
 				'page'        => $page,
 				'user_id'     => $user_id,
 				'action'      => $action,
@@ -235,7 +242,7 @@ function audit_config_insert() {
 				'event_time'  => $event_time,
 				'post'        => $post,
 				'object_data' => $object_data
-			);
+			];
 
 			$log_msg = json_encode($log_data) . "\n";
 			$file    = fopen($audit_log, 'a');
@@ -263,7 +270,7 @@ function audit_config_insert() {
 
 			db_execute_prepared('INSERT INTO audit_log (page, user_id, action, ip_address, user_agent, event_time, post)
 				VALUES (?, ?, ?, ?, ?, ?, ?)',
-				array($page, $user_id, $action, $ip_address, $user_agent, $event_time, $post));
+				[$page, $user_id, $action, $ip_address, $user_agent, $event_time, $post]);
 		}
 	}
 }
\ No newline at end of file
diff --git a/index.php b/index.php
index 2e22b8c..a25b19c 100644
--- a/index.php
+++ b/index.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
diff --git a/locales/LC_MESSAGES/index.php b/locales/LC_MESSAGES/index.php
index 2e22b8c..a25b19c 100644
--- a/locales/LC_MESSAGES/index.php
+++ b/locales/LC_MESSAGES/index.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
diff --git a/locales/index.php b/locales/index.php
index 2e22b8c..a25b19c 100644
--- a/locales/index.php
+++ b/locales/index.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
diff --git a/setup.php b/setup.php
index ca1af13..17469a3 100644
--- a/setup.php
+++ b/setup.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
@@ -67,7 +69,7 @@ function audit_check_upgrade() {
 	include_once($config['library_path'] . '/database.php');
 	include_once($config['library_path'] . '/functions.php');
 
-	$files = array('plugins.php', 'audit.php');
+	$files = ['plugins.php', 'audit.php'];
 	if (isset($_SERVER['PHP_SELF']) && !in_array(basename($_SERVER['PHP_SELF']), $files)) {
 		return;
 	}
@@ -250,7 +252,7 @@ function audit_config_arrays() {
 	global $menu, $messages, $audit_retentions, $utilities;
 
 	if (isset($_SESSION['audit_message']) && $_SESSION['audit_message'] != '') {
-		$messages['audit_message'] = array('message' => $_SESSION['audit_message'], 'type' => 'info');
+		$messages['audit_message'] = ['message' => $_SESSION['audit_message'], 'type' => 'info'];
 	}
 
 	$audit_retentions = array(
@@ -269,7 +271,7 @@ function audit_config_arrays() {
 	$menu[__('Utilities')]['plugins/audit/audit.php'] = __('Audit Log', 'audit');
 
 	if (function_exists('auth_augment_roles')) {
-		auth_augment_roles(__('System Administration'), array('audit.php'));
+		auth_augment_roles(__('System Administration'), ['audit.php']);
 	}
 
 	audit_check_upgrade();