diff --git a/core/dashboard/dashboard.php b/core/dashboard/dashboard.php
index d604b33683..92eff0ecdf 100644
--- a/core/dashboard/dashboard.php
+++ b/core/dashboard/dashboard.php
@@ -43,14 +43,14 @@
 	$text = $language->get();
 
 //get the http post data
-	if (is_array($_POST['dashboard'])) {
+	if (!empty($_POST['dashboard'])) {
 		$action = $_POST['action'];
 		$search = $_POST['search'];
 		$dashboard = $_POST['dashboard'];
 	}
 
 //process the http post data by action
-	if ($action != '' && is_array($dashboard) && @sizeof($dashboard) != 0) {
+	if (!empty($action) && is_array($dashboard) && @sizeof($dashboard) != 0) {
 
 		switch ($action) {
 			case 'copy':
@@ -79,8 +79,8 @@
 	}
 
 //get order and order by
-	$order_by = $_GET["order_by"];
-	$order = $_GET["order"];
+	$order_by = $_GET["order_by"] ?? null;
+	$order = $_GET["order"] ?? null;
 
 //add the search
 	if (isset($_GET["search"])) {
@@ -195,7 +195,7 @@
 		$parameters['search'] = '%'.$search.'%';
 	}
 	$database = new database;
-	$num_rows = $database->select($sql, $parameters, 'column');
+	$num_rows = $database->select($sql, $parameters ?? null, 'column');
 	unset($sql, $parameters);
 
 //get the list
@@ -224,9 +224,9 @@
 		$parameters['search'] = '%'.strtolower($search).'%';
 	}
 	$sql .= order_by($order_by, $order, 'dashboard_order', 'asc');
-	$sql .= limit_offset($rows_per_page, $offset);
+	$sql .= limit_offset($rows_per_page ?? null, $offset ?? null);
 	$database = new database;
-	$dashboard = $database->select($sql, $parameters, 'all');
+	$dashboard = $database->select($sql, $parameters ?? null, 'all');
 	unset($sql, $parameters);
 
 //create token
@@ -245,20 +245,20 @@
 	if (permission_exists('dashboard_add')) {
 		echo button::create(['type'=>'button','label'=>$text['button-add'],'icon'=>$_SESSION['theme']['button_icon_add'],'id'=>'btn_add','name'=>'btn_add','link'=>'dashboard_edit.php']);
 	}
-	if (permission_exists('dashboard_add') && $dashboard) {
+	if (permission_exists('dashboard_add') && !empty($dashboard)) {
 		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'id'=>'btn_copy','name'=>'btn_copy','style'=>'display:none;','onclick'=>"modal_open('modal-copy','btn_copy');"]);
 	}
-	if (permission_exists('dashboard_edit') && $dashboard) {
+	if (permission_exists('dashboard_edit') && !empty($dashboard)) {
 		echo button::create(['type'=>'button','label'=>$text['button-toggle'],'icon'=>$_SESSION['theme']['button_icon_toggle'],'id'=>'btn_toggle','name'=>'btn_toggle','style'=>'display:none;','onclick'=>"modal_open('modal-toggle','btn_toggle');"]);
 	}
-	if (permission_exists('dashboard_delete') && $dashboard) {
+	if (permission_exists('dashboard_delete') && !empty($dashboard)) {
 		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'id'=>'btn_delete','name'=>'btn_delete','style'=>'display:none;','onclick'=>"modal_open('modal-delete','btn_delete');"]);
 	}
 	echo 		"<form id='form_search' class='inline' method='get'>\n";
-	echo 		"<input type='text' class='txt list-search' name='search' id='search' value=\"".escape($search)."\" placeholder=\"".$text['label-search']."\" onkeydown=''>";
+	echo 		"<input type='text' class='txt list-search' name='search' id='search' value=\"".escape($search ?? '')."\" placeholder=\"".$text['label-search']."\" onkeydown=''>";
 	echo button::create(['label'=>$text['button-search'],'icon'=>$_SESSION['theme']['button_icon_search'],'type'=>'submit','id'=>'btn_search']);
 	//echo button::create(['label'=>$text['button-reset'],'icon'=>$_SESSION['theme']['button_icon_reset'],'type'=>'button','id'=>'btn_reset','link'=>'dashboard.php','style'=>($search == '' ? 'display: none;' : null)]);
-	if ($paging_controls_mini != '') {
+	if (!empty($paging_controls_mini)) {
 		echo 	"<span style='margin-left: 15px;'>".$paging_controls_mini."</span>\n";
 	}
 	echo "		</form>\n";
@@ -266,26 +266,26 @@
 	echo "	<div style='clear: both;'></div>\n";
 	echo "</div>\n";
 
-	if (permission_exists('dashboard_add') && $dashboard) {
+	if (permission_exists('dashboard_add') && !empty($dashboard)) {
 		echo modal::create(['id'=>'modal-copy','type'=>'copy','actions'=>button::create(['type'=>'button','label'=>$text['button-continue'],'icon'=>'check','id'=>'btn_copy','style'=>'float: right; margin-left: 15px;','collapse'=>'never','onclick'=>"modal_close(); list_action_set('copy'); list_form_submit('form_list');"])]);
 	}
-	if (permission_exists('dashboard_edit') && $dashboard) {
+	if (permission_exists('dashboard_edit') && !empty($dashboard)) {
 		echo modal::create(['id'=>'modal-toggle','type'=>'toggle','actions'=>button::create(['type'=>'button','label'=>$text['button-continue'],'icon'=>'check','id'=>'btn_toggle','style'=>'float: right; margin-left: 15px;','collapse'=>'never','onclick'=>"modal_close(); list_action_set('toggle'); list_form_submit('form_list');"])]);
 	}
-	if (permission_exists('dashboard_delete') && $dashboard) {
+	if (permission_exists('dashboard_delete') && !empty($dashboard)) {
 		echo modal::create(['id'=>'modal-delete','type'=>'delete','actions'=>button::create(['type'=>'button','label'=>$text['button-continue'],'icon'=>'check','id'=>'btn_delete','style'=>'float: right; margin-left: 15px;','collapse'=>'never','onclick'=>"modal_close(); list_action_set('delete'); list_form_submit('form_list');"])]);
 	}
 
 
 	echo "<form id='form_list' method='post'>\n";
 	echo "<input type='hidden' id='action' name='action' value=''>\n";
-	echo "<input type='hidden' name='search' value=\"".escape($search)."\">\n";
+	echo "<input type='hidden' name='search' value=\"".escape($search ?? '')."\">\n";
 
 	echo "<table class='list'>\n";
 	echo "<tr class='list-header'>\n";
 	if (permission_exists('dashboard_add') || permission_exists('dashboard_edit') || permission_exists('dashboard_delete')) {
 		echo "	<th class='checkbox'>\n";
-		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle(); checkbox_on_change(this);' ".($dashboard ?: "style='visibility: hidden;'").">\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle(); checkbox_on_change(this);' ".(!empty($dashboard) ?: "style='visibility: hidden;'").">\n";
 		echo "	</th>\n";
 	}
 	echo th_order_by('dashboard_name', $text['label-dashboard_name'], $order_by, $order);
@@ -293,12 +293,12 @@
 	echo th_order_by('dashboard_order', $text['label-dashboard_order'], $order_by, $order);
 	echo th_order_by('dashboard_enabled', $text['label-dashboard_enabled'], $order_by, $order, null, "class='center'");
 	echo "	<th class='hide-sm-dn'>".$text['label-dashboard_description']."</th>\n";
-	if (permission_exists('dashboard_edit') && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
+	if (permission_exists('dashboard_edit') && isset($_SESSION['theme']['list_row_edit_button']['boolean']) && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
 		echo "	<td class='action-button'>&nbsp;</td>\n";
 	}
 	echo "</tr>\n";
 
-	if (is_array($dashboard) && @sizeof($dashboard) != 0) {
+	if (!empty($dashboard)) {
 		$x = 0;
 		foreach ($dashboard as $row) {
 			if (permission_exists('dashboard_edit')) {
@@ -332,7 +332,7 @@
 			}
 			echo "	</td>\n";
 			echo "	<td class='description overflow hide-sm-dn'>".escape($row['dashboard_description'])."</td>\n";
-			if (permission_exists('dashboard_edit') && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
+			if (permission_exists('dashboard_edit') && isset($_SESSION['theme']['list_row_edit_button']['boolean']) && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
 				echo "	<td class='action-button'>\n";
 				echo button::create(['type'=>'button','title'=>$text['button-edit'],'icon'=>$_SESSION['theme']['button_icon_edit'],'link'=>$list_row_url]);
 				echo "	</td>\n";
@@ -345,11 +345,11 @@
 
 	echo "</table>\n";
 	echo "<br />\n";
-	echo "<div align='center'>".$paging_controls."</div>\n";
+	echo "<div align='center'>".($paging_controls ?? '')."</div>\n";
 	echo "<input type='hidden' name='".$token['name']."' value='".$token['hash']."'>\n";
 	echo "</form>\n";
 
 //include the footer
 	require_once "resources/footer.php";
 
-?>
+?>
\ No newline at end of file