fix deprecated errors

system/codeigniter/core/Exceptions.php

@@ -57,7 +57,8 @@ class CI_Exceptions {
                     E_USER_ERROR		=>	'User Error',
                     E_USER_WARNING		=>	'User Warning',
                     E_USER_NOTICE		=>	'User Notice',
-						E_STRICT			=>	'Runtime Notice'
+                    2048			=>	'Runtime Notice'
+
 					);
 
 

system/pancake/core/Pancake_Exceptions.php

@@ -42,7 +42,7 @@ class Pancake_Exceptions extends CI_Exceptions {
         E_PARSE => 'Parse Error',
         E_WARNING => 'Warning',
         E_USER_WARNING => 'User Warning',
-        E_STRICT => 'Strict',
+        2048 => 'Strict',
         E_NOTICE => 'Notice',
         E_RECOVERABLE_ERROR => 'Recoverable Error',
         E_DEPRECATED => 'Deprecation Notice',
@@ -66,7 +66,7 @@ class Pancake_Exceptions extends CI_Exceptions {
         E_USER_ERROR => 'User Error',
         E_USER_WARNING => 'User Warning',
         E_USER_NOTICE => 'User Notice',
-        E_STRICT => 'Runtime Notice',
+        2048 => 'Runtime Notice',
         E_DEPRECATED => 'Deprecation Notice',
     );
 
@@ -79,7 +79,7 @@ class Pancake_Exceptions extends CI_Exceptions {
     public static $non_reportable_levels = array(
         E_NOTICE,
         E_USER_NOTICE,
-        E_STRICT,
+        2048,
         E_DEPRECATED,
     );
 
@@ -802,7 +802,7 @@ END;
      *
      * @return    string
      */
-    public static function trace(array $trace = null) {
+    public static function trace(?array $trace = null) {
         if ($trace === null) {
             // Start a new trace
             $trace = debug_backtrace();

system/pancake/pancake_index.php

@@ -194,7 +194,8 @@ try {
 
     # @ is used here to prevent errors with some of the stricter hosts who disable ini_set.
     @ini_set('display_errors', true);
-    error_reporting(-1);
+    // Hide deprecation notices from legacy/vendor code on modern PHP.
+    error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
 
     $system_path = FCPATH . "system/codeigniter";
     $application_folder = FCPATH . "system/pancake";