diff --git a/src/bootstrap/Exceptions_common_bool.php b/src/bootstrap/Exceptions_common_bool.php
index 69c35ab..7a874d4 100644
--- a/src/bootstrap/Exceptions_common_bool.php
+++ b/src/bootstrap/Exceptions_common_bool.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 class Exceptions_common_bool extends \Exception {
diff --git a/src/bootstrap/auto_loader.php b/src/bootstrap/auto_loader.php
index 1fe966c..70c6809 100644
--- a/src/bootstrap/auto_loader.php
+++ b/src/bootstrap/auto_loader.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @author http://php-fig.org/ <info@php-fig.org>
  * @site https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md
diff --git a/src/bootstrap/common.php b/src/bootstrap/common.php
index 2b0c0f0..4a588fd 100644
--- a/src/bootstrap/common.php
+++ b/src/bootstrap/common.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class common {
diff --git a/src/bootstrap/errors.php b/src/bootstrap/errors.php
index e6dd96c..639f628 100644
--- a/src/bootstrap/errors.php
+++ b/src/bootstrap/errors.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 define('WORD_WRAP_CHRS', 80); // Letters before Line Wrap on Errors
 $root = \tts\site_helper::get_root();
 if (!defined('TTS_PROJECT_LOGS_DIR')) {
diff --git a/src/bootstrap/filter.php b/src/bootstrap/filter.php
index 1c97369..582c635 100644
--- a/src/bootstrap/filter.php
+++ b/src/bootstrap/filter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 if (!defined('HTMLPURIFIER_PREFIX')) {
   define('HTMLPURIFIER_PREFIX', TTS_VENDOR . 'ezyang/htmlpurifier/library');
 }
diff --git a/src/bootstrap/requires.php b/src/bootstrap/requires.php
index 172f336..ff26e6e 100644
--- a/src/bootstrap/requires.php
+++ b/src/bootstrap/requires.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class requires {
diff --git a/src/bootstrap/safer_io.php b/src/bootstrap/safer_io.php
index 338cd76..49a7f32 100644
--- a/src/bootstrap/safer_io.php
+++ b/src/bootstrap/safer_io.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /* Sanitize Input, Validate data and Escape output.
  * 1) In web development to sanitize means that you remove unsafe 
  *  characters from the input. Makes safer DB inserts/selects, etc...!
@@ -386,7 +388,7 @@ final class safer_io {
                     $safer_data[$input_field_name] = $safer_data[$input_field_name][0];
                 }
             }
-
+            
             $safer_html = self::get_safer_html($safer_data[$input_field_name], $a);
             if ($safer_html !== false) {
                 $safer_html_data[$input_field_name] = $safer_html;
@@ -396,6 +398,14 @@ final class safer_io {
             if (isset($safer_html_data[$input_field_name])) {
                 $safer_html_data[$input_field_name] = self::t($safer_html_data[$input_field_name], $trim);
             }
+            
+            if ($field_type == FIELD_FILTER::integer_number) {
+                $safer_data[$input_field_name] = intval($safer_data[$input_field_name]);
+            }
+            if ($field_type == FIELD_FILTER::floating_point) {
+                $safer_data[$input_field_name] = floatval($safer_data[$input_field_name]);
+            }            
+            
         }
         $errors = (count($rules)) ? \tts\validator::validate($safer_data, $rules, $messages) : [];
 
diff --git a/src/bootstrap/site_helper.php b/src/bootstrap/site_helper.php
index 2872dbb..29cfa30 100644
--- a/src/bootstrap/site_helper.php
+++ b/src/bootstrap/site_helper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class site_helper {
diff --git a/src/bootstrap/validator.php b/src/bootstrap/validator.php
index 8142bae..3c06c56 100644
--- a/src/bootstrap/validator.php
+++ b/src/bootstrap/validator.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @link https://www.phptutorial.net/php-tutorial/php-validation/
  */
@@ -114,54 +116,54 @@ class validator {
         return filter_var($data[$field], FILTER_VALIDATE_EMAIL);
     }
 
-    private static function is_min(array $data, string $field, int $min): bool {
+    private static function is_min(array $data, string $field, string $min): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
-        return mb_strlen($data[$field]) >= $min;
+        return mb_strlen($data[$field]) >= intval($min);
     }
 
-    private static function is_max(array $data, string $field, int $max): bool {
+    private static function is_max(array $data, string $field, string $max): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
-        return mb_strlen($data[$field]) <= $max;
+        return mb_strlen($data[$field]) <= intval($max);
     }
 
-    private static function is_greater_than(array $data, string $field, int $min): bool {
+    private static function is_greater_than(array $data, string $field, string $min): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
-        return intval($data[$field]) > $min;
+        return intval($data[$field]) > intval($min);
     }
 
-    private static function is_less_than(array $data, string $field, int $max): bool {
+    private static function is_less_than(array $data, string $field, string $max): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
-        return intval($data[$field]) < $max;
+        return intval($data[$field]) < intval($max);
     }
 
-    private static function is_number_range(array $data, string $field, int $min, int $max): bool {
+    private static function is_number_range(array $data, string $field, string $min, string $max): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
         $no = intval($data[$field]);
-        return $no >= $min && $no <= $max;
+        return $no >= intval($min) && $no <= intval($max);
     }
 
-    private static function is_between(array $data, string $field, int $min, int $max): bool {
+    private static function is_between(array $data, string $field, string $min, string $max): bool {
         if (!isset($data[$field])) {
             return true;
         }
 
         $len = mb_strlen($data[$field]);
-        return $len >= $min && $len <= $max;
+        return $len >= intval($min) && $len <= intval($max);
     }
 
     private static function is_same(array $data, string $field, string $other): bool {
diff --git a/src/classes/api.php b/src/classes/api.php
index 97f5b51..c42a942 100644
--- a/src/classes/api.php
+++ b/src/classes/api.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 class api {
diff --git a/src/classes/app.php b/src/classes/app.php
index c08f52c..7670600 100644
--- a/src/classes/app.php
+++ b/src/classes/app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 use Exception;
diff --git a/src/classes/arrays/common.php b/src/classes/arrays/common.php
index 3e055e2..6354840 100644
--- a/src/classes/arrays/common.php
+++ b/src/classes/arrays/common.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 namespace tts\arrays;
 
 class common {
diff --git a/src/classes/arrays/countries.php b/src/classes/arrays/countries.php
index e1a6fb7..3b7b043 100644
--- a/src/classes/arrays/countries.php
+++ b/src/classes/arrays/countries.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays;
 
 class countries {
diff --git a/src/classes/arrays/mimes.php b/src/classes/arrays/mimes.php
index a2fe82e..e2cbd18 100644
--- a/src/classes/arrays/mimes.php
+++ b/src/classes/arrays/mimes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays;
 
 class mimes {
diff --git a/src/classes/arrays/mocking/address.php b/src/classes/arrays/mocking/address.php
index 2bdb391..ff2ec3f 100644
--- a/src/classes/arrays/mocking/address.php
+++ b/src/classes/arrays/mocking/address.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays\mocking;
 
 class address {
diff --git a/src/classes/arrays/mocking/phone.php b/src/classes/arrays/mocking/phone.php
index 55cfaa2..1adb928 100644
--- a/src/classes/arrays/mocking/phone.php
+++ b/src/classes/arrays/mocking/phone.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays\mocking;
 
 class phone {
diff --git a/src/classes/arrays/mocking/rnd_names.php b/src/classes/arrays/mocking/rnd_names.php
index 1397059..1b4d5b0 100644
--- a/src/classes/arrays/mocking/rnd_names.php
+++ b/src/classes/arrays/mocking/rnd_names.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays\mocking;
 
 class rnd_names {
diff --git a/src/classes/arrays/shortn.php b/src/classes/arrays/shortn.php
index 77f409f..8941d03 100644
--- a/src/classes/arrays/shortn.php
+++ b/src/classes/arrays/shortn.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays;
 
 final class shortn {
diff --git a/src/classes/arrays/zipcodes.php b/src/classes/arrays/zipcodes.php
index a25b278..219462f 100644
--- a/src/classes/arrays/zipcodes.php
+++ b/src/classes/arrays/zipcodes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\arrays;
 
 class zipcodes {
diff --git a/src/classes/assets.php b/src/classes/assets.php
index 3a7236f..be79ffb 100644
--- a/src/classes/assets.php
+++ b/src/classes/assets.php
@@ -1,10 +1,16 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class assets {
   
   public static function get_ver(string $filename): string {
+    if (self::attempts_root_dir($filename)) {
+        return "";
+    }
+  
     $safe_file = \tts\security::filter_uri($filename);
     if (! file_exists($safe_file)) {
       return "?ver=false";
@@ -15,7 +21,6 @@ final class assets {
       /**
      * Check for / or absolute path not belonging to /var/www or PRJ:ROOT
      * @param string|null $path
-     * @param string $open_base_dir_path
      * @return bool
      */
     private static function attempts_root_dir(?string $path): bool {
diff --git a/src/classes/bb_code_parser.php b/src/classes/bb_code_parser.php
index c285a3a..d079730 100644
--- a/src/classes/bb_code_parser.php
+++ b/src/classes/bb_code_parser.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @link https://github.com/genert/bbcode/blob/master/src/Parser/BBCodeParser.php
  * The MIT License (MIT)
diff --git a/src/classes/console_app.php b/src/classes/console_app.php
index a9c09e8..29277e6 100644
--- a/src/classes/console_app.php
+++ b/src/classes/console_app.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class console_app {
diff --git a/src/classes/contracts/http_request_options.php b/src/classes/contracts/http_request_options.php
index 18e7b7e..7914495 100644
--- a/src/classes/contracts/http_request_options.php
+++ b/src/classes/contracts/http_request_options.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\interfaces;
 
 final class http_request_options {
diff --git a/src/classes/contracts/sessions_interface.php b/src/classes/contracts/sessions_interface.php
index 30fbbbb..8b69ee7 100644
--- a/src/classes/contracts/sessions_interface.php
+++ b/src/classes/contracts/sessions_interface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\contacts;
 
 interface sessions_interface {
diff --git a/src/classes/database/dummy_data.php b/src/classes/database/dummy_data.php
index 2fea35c..f9af801 100644
--- a/src/classes/database/dummy_data.php
+++ b/src/classes/database/dummy_data.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\database;
 
 final class dummy_data {
diff --git a/src/classes/database/help_load.php b/src/classes/database/help_load.php
index d2725eb..0b1d7ae 100644
--- a/src/classes/database/help_load.php
+++ b/src/classes/database/help_load.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\database;
 
 class help_load {
diff --git a/src/classes/database/help_save.php b/src/classes/database/help_save.php
index a7f725a..da02252 100644
--- a/src/classes/database/help_save.php
+++ b/src/classes/database/help_save.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\database;
 
 final class help_save {
diff --git a/src/classes/database/paginate.php b/src/classes/database/paginate.php
index 9af48f5..1c0354f 100644
--- a/src/classes/database/paginate.php
+++ b/src/classes/database/paginate.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * FROM site:
  * @link https://code.tutsplus.com/tutorials/how-to-paginate-data-with-php--net-2928
diff --git a/src/classes/database/run_sql.php b/src/classes/database/run_sql.php
index 174c717..487b32b 100644
--- a/src/classes/database/run_sql.php
+++ b/src/classes/database/run_sql.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\database;
 
 trait run_sql {
diff --git a/src/classes/database/validation.php b/src/classes/database/validation.php
index b0e6319..a717fd3 100644
--- a/src/classes/database/validation.php
+++ b/src/classes/database/validation.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\database;
 
 trait validation {
diff --git a/src/classes/enum/app_environment.php b/src/classes/enum/app_environment.php
index 4269db0..506bc41 100644
--- a/src/classes/enum/app_environment.php
+++ b/src/classes/enum/app_environment.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\enum;
 
 enum app_environment: string {
diff --git a/src/classes/enum/same_site.php b/src/classes/enum/same_site.php
index 8fcfab6..cdb60cb 100644
--- a/src/classes/enum/same_site.php
+++ b/src/classes/enum/same_site.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\enum;
 
 enum same_site: string {
diff --git a/src/classes/exceptions/DB_Exception.php b/src/classes/exceptions/DB_Exception.php
index 92b44ff..700a8fb 100644
--- a/src/classes/exceptions/DB_Exception.php
+++ b/src/classes/exceptions/DB_Exception.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\exceptions;
 
 enum HANDLE_FAILURE: int {
diff --git a/src/classes/html.php b/src/classes/html.php
index 542e385..ee5216f 100644
--- a/src/classes/html.php
+++ b/src/classes/html.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class html {
@@ -104,8 +106,12 @@ final class html {
     foreach($records as $record) {
       echo "\t<tr>{$nl}";
       foreach($db_field_names as $field_name) {
-        $td = $record[$field_name] ?? "";  
-        $cell = ($escape) ? \tts\safer_io::h($td) : $td;
+        $td = $record[$field_name] ?? "";
+        if (is_string($td)) {
+            $cell = ($escape) ? \tts\safer_io::h($td) : $td;
+        } else {
+            $cell = (string) $td;
+        }        
         echo "\t\t<td>{$cell}</td>{$nl}";
       }
       echo "\t</tr>{$nl}";  
diff --git a/src/classes/html_document.php b/src/classes/html_document.php
index bc43c4b..b4f307a 100644
--- a/src/classes/html_document.php
+++ b/src/classes/html_document.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 /**
diff --git a/src/classes/html_parser.php b/src/classes/html_parser.php
index 8ac091b..d002549 100644
--- a/src/classes/html_parser.php
+++ b/src/classes/html_parser.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @link https://github.com/genert/bbcode/blob/master/src/Parser/HTMLParser.php
  * The MIT License (MIT)
diff --git a/src/classes/json.php b/src/classes/json.php
index 233a1ed..fba77ee 100644
--- a/src/classes/json.php
+++ b/src/classes/json.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class json {
diff --git a/src/classes/loadall.php b/src/classes/loadall.php
index caa9bc5..3e6ba68 100644
--- a/src/classes/loadall.php
+++ b/src/classes/loadall.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class loadall {
diff --git a/src/classes/memory_usage.php b/src/classes/memory_usage.php
index 117df27..3f3469b 100644
--- a/src/classes/memory_usage.php
+++ b/src/classes/memory_usage.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class memory_usage {
diff --git a/src/classes/page_not_found.php b/src/classes/page_not_found.php
index 0ffd735..a66a341 100644
--- a/src/classes/page_not_found.php
+++ b/src/classes/page_not_found.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 class page_not_found {
diff --git a/src/classes/request.php b/src/classes/request.php
index 3701591..7d6abd0 100644
--- a/src/classes/request.php
+++ b/src/classes/request.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class request {
diff --git a/src/classes/router.php b/src/classes/router.php
index 54fcf3b..6ce8ac8 100644
--- a/src/classes/router.php
+++ b/src/classes/router.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @ MIT License
  * @copyright (c) 2018, Patrik Mokrý
diff --git a/src/classes/safer_sql.php b/src/classes/safer_sql.php
index 792e82d..677455b 100644
--- a/src/classes/safer_sql.php
+++ b/src/classes/safer_sql.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @todo This is just for PLAY for now!!!!
  * Too many FALSE positives and too many FALSE Negatives!!!
diff --git a/src/classes/security.php b/src/classes/security.php
index 0659290..960f0be 100644
--- a/src/classes/security.php
+++ b/src/classes/security.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class security {
diff --git a/src/classes/services/cache/file.php b/src/classes/services/cache/file.php
index 5fbe556..4be42f3 100644
--- a/src/classes/services/cache/file.php
+++ b/src/classes/services/cache/file.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\cache;
 
 class file {
diff --git a/src/classes/services/cache/redis_db.php b/src/classes/services/cache/redis_db.php
index 72a3832..bf60879 100644
--- a/src/classes/services/cache/redis_db.php
+++ b/src/classes/services/cache/redis_db.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\cache;
 
 final class redis_db {
diff --git a/src/classes/services/emailer.php b/src/classes/services/emailer.php
index 83000c7..0176824 100644
--- a/src/classes/services/emailer.php
+++ b/src/classes/services/emailer.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 class emailer {
diff --git a/src/classes/services/html_filter.php b/src/classes/services/html_filter.php
index 4ac7fca..f5cbd7f 100644
--- a/src/classes/services/html_filter.php
+++ b/src/classes/services/html_filter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 final class html_filter {
diff --git a/src/classes/services/http_requests/http_curl_request.php b/src/classes/services/http_requests/http_curl_request.php
index 561e529..5856e7e 100644
--- a/src/classes/services/http_requests/http_curl_request.php
+++ b/src/classes/services/http_requests/http_curl_request.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\http_requests;
 
 class http_curl_request {
diff --git a/src/classes/services/liquid_templates.php b/src/classes/services/liquid_templates.php
index 18fdd08..698e788 100644
--- a/src/classes/services/liquid_templates.php
+++ b/src/classes/services/liquid_templates.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 final class liquid_templates {
diff --git a/src/classes/services/log.php b/src/classes/services/log.php
index 31f4a19..08cf304 100644
--- a/src/classes/services/log.php
+++ b/src/classes/services/log.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 final class log {
diff --git a/src/classes/services/obsolete/crypto.php b/src/classes/services/obsolete/crypto.php
index 1fc1ada..ba97f18 100644
--- a/src/classes/services/obsolete/crypto.php
+++ b/src/classes/services/obsolete/crypto.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 class crypto {
diff --git a/src/classes/services/obsolete/encryption.php b/src/classes/services/obsolete/encryption.php
index e345dd2..3691829 100644
--- a/src/classes/services/obsolete/encryption.php
+++ b/src/classes/services/obsolete/encryption.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 /*
diff --git a/src/classes/services/obsolete/http_socket_request.php b/src/classes/services/obsolete/http_socket_request.php
index 2ad4fdc..6387e16 100644
--- a/src/classes/services/obsolete/http_socket_request.php
+++ b/src/classes/services/obsolete/http_socket_request.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\http_requests;
 
 final class http_socket_request {
diff --git a/src/classes/services/paragon_crypto/crypto.php b/src/classes/services/paragon_crypto/crypto.php
index 05c8881..44816e7 100644
--- a/src/classes/services/paragon_crypto/crypto.php
+++ b/src/classes/services/paragon_crypto/crypto.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /*
  * @author Paragon Initiative Enterprises
  * @copyright MIT
diff --git a/src/classes/services/paragon_crypto/password_storage.php b/src/classes/services/paragon_crypto/password_storage.php
index 2f87029..cb4d2fd 100644
--- a/src/classes/services/paragon_crypto/password_storage.php
+++ b/src/classes/services/paragon_crypto/password_storage.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\paragon_crypto;
 
 /*
diff --git a/src/classes/services/paragon_crypto/sodium_storage.php b/src/classes/services/paragon_crypto/sodium_storage.php
index d6f9ea4..cff574d 100644
--- a/src/classes/services/paragon_crypto/sodium_storage.php
+++ b/src/classes/services/paragon_crypto/sodium_storage.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * @author Robert Strutts, Original works by Paragon Initiative Enterprises
  * @license MIT   
diff --git a/src/classes/services/sessions.php b/src/classes/services/sessions.php
index 3d9146d..3a2e6af 100644
--- a/src/classes/services/sessions.php
+++ b/src/classes/services/sessions.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 class sessions {
diff --git a/src/classes/services/sessions/file_sessions.php b/src/classes/services/sessions/file_sessions.php
index 4e71e63..e109f28 100644
--- a/src/classes/services/sessions/file_sessions.php
+++ b/src/classes/services/sessions/file_sessions.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\sessions;
 
 class file_sessions implements \tts\contracts\sessions_interface {
diff --git a/src/classes/services/sessions/redis_sessions.php b/src/classes/services/sessions/redis_sessions.php
index 7aeb685..b903a1f 100644
--- a/src/classes/services/sessions/redis_sessions.php
+++ b/src/classes/services/sessions/redis_sessions.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services\sessions;
 
 class redis_sessions implements \tts\contracts\sessions_interface {
diff --git a/src/classes/services/simple_rest.php b/src/classes/services/simple_rest.php
index b6b5807..d30f106 100644
--- a/src/classes/services/simple_rest.php
+++ b/src/classes/services/simple_rest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 class simple_rest {
diff --git a/src/classes/services/twilio.php b/src/classes/services/twilio.php
index 67fcff1..07f42fe 100644
--- a/src/classes/services/twilio.php
+++ b/src/classes/services/twilio.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts\services;
 
 final class twilio {
diff --git a/src/classes/session_management.php b/src/classes/session_management.php
index 891471c..577fd67 100644
--- a/src/classes/session_management.php
+++ b/src/classes/session_management.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class session_management {
diff --git a/src/classes/tag_matches.php b/src/classes/tag_matches.php
index 995b5ff..cc6ab7d 100644
--- a/src/classes/tag_matches.php
+++ b/src/classes/tag_matches.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class tag_matches {
diff --git a/src/classes/time_zone_selection.php b/src/classes/time_zone_selection.php
index c4de1d3..39594cf 100644
--- a/src/classes/time_zone_selection.php
+++ b/src/classes/time_zone_selection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /** 
  * @folked from https://gist.github.com/Xeoncross/1204255
  * @site https://gist.github.com/vrdriver/659562a150ba955063ad849e44dac2cc
diff --git a/src/classes/time_zones.php b/src/classes/time_zones.php
index 5b2894b..323f876 100644
--- a/src/classes/time_zones.php
+++ b/src/classes/time_zones.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class time_zones {
diff --git a/src/classes/traits/csrf_token_functions.php b/src/classes/traits/csrf_token_functions.php
index 96b21e0..db9e2f5 100644
--- a/src/classes/traits/csrf_token_functions.php
+++ b/src/classes/traits/csrf_token_functions.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 namespace tts\traits;
 
 trait csrf_token_functions {
diff --git a/src/classes/traits/session_hijacking_functions.php b/src/classes/traits/session_hijacking_functions.php
index 93bd1c0..0ec4cdb 100644
--- a/src/classes/traits/session_hijacking_functions.php
+++ b/src/classes/traits/session_hijacking_functions.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 namespace tts\traits;
 
 /**
diff --git a/src/classes/url_encode.php b/src/classes/url_encode.php
index 7409372..7df39ba 100644
--- a/src/classes/url_encode.php
+++ b/src/classes/url_encode.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class url_encode {
diff --git a/src/classes/view.php b/src/classes/view.php
index 9f9c4d9..efaf855 100644
--- a/src/classes/view.php
+++ b/src/classes/view.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace tts;
 
 final class view {
diff --git a/src/templates/dev_error.php b/src/templates/dev_error.php
index ad42885..56950e6 100644
--- a/src/templates/dev_error.php
+++ b/src/templates/dev_error.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 if (defined("PROJECT_ASSETS_BASE_REF")) {
     $base_ref = PROJECT_ASSETS_BASE_REF;
 } else {
diff --git a/src/views/404.php b/src/views/404.php
index 368c105..4cd4ad3 100644
--- a/src/views/404.php
+++ b/src/views/404.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
  $protocol = "HTTP/1.0";
   if ( "HTTP/1.1" == $_SERVER["SERVER_PROTOCOL"] ) {
     $protocol = "HTTP/1.1";
diff --git a/src/views/default/broken.php b/src/views/default/broken.php
index 08c98a4..ec46199 100644
--- a/src/views/default/broken.php
+++ b/src/views/default/broken.php
@@ -1,4 +1,6 @@
 <pre>
 <?= $ex ?>
-<?php var_dump(debug_backtrace()); ?>
+<?php 
+declare(strict_types=1);
+var_dump(debug_backtrace()); ?>
 </pre>
diff --git a/src/views/errors.php b/src/views/errors.php
index 626a571..f1f2b61 100644
--- a/src/views/errors.php
+++ b/src/views/errors.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 define('PRODUCTION', 600);
 define('MAINTENACE', 3600); // 1 hour = 3600 seconds
 define('RETRY_AFTER', PRODUCTION);