PHP Deprecated notice

Hello,

These PHP errors appear on the admin:

[21-Jun-2024 14:14:28 UTC] PHP Deprecated:  strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in \wp-includes\functions.php on line 7288
[21-Jun-2024 14:14:28 UTC] PHP Stack trace:
[21-Jun-2024 14:14:28 UTC] PHP   1. {main}() \wp-admin\admin.php:0
[21-Jun-2024 14:14:28 UTC] PHP   2. require() \wp-admin\admin.php:158
[21-Jun-2024 14:14:28 UTC] PHP   3. require_once() \wp-admin\menu.php:422
[21-Jun-2024 14:14:28 UTC] PHP   4. do_action($hook_name = 'admin_menu', ...$arg = variadic('')) \wp-admin\includes\menu.php:161
[21-Jun-2024 14:14:28 UTC] PHP   5. WP_Hook->do_action($args = [0 => '']) \wp-includes\plugin.php:517
[21-Jun-2024 14:14:28 UTC] PHP   6. WP_Hook->apply_filters($value = '', $args = [0 => '']) \wp-includes\class-wp-hook.php:348
[21-Jun-2024 14:14:28 UTC] PHP   7. Bdp_Admin->bdp_register_menu('') \wp-includes\class-wp-hook.php:324
[21-Jun-2024 14:14:28 UTC] PHP   8. add_submenu_page($parent_slug = NULL, $page_title = 'Shortcode Preview - Blog Designer Pack', $menu_title = 'Shortcode Preview', $capability = 'manage_options', $menu_slug = 'bdp-shortcode-preview', $callback = [0 => class Bdp_Admin {  }, 1 => 'bdp_shortcode_preview_page'], $position = *uninitialized*) \wp-content\plugins\blog-designer-pack\includes\admin\class-bdp-admin.php:53
[21-Jun-2024 14:14:28 UTC] PHP   9. plugin_basename($file = NULL) \wp-admin\includes\plugin.php:1480
[21-Jun-2024 14:14:28 UTC] PHP  10. wp_normalize_path($path = NULL) \wp-includes\plugin.php:769
[21-Jun-2024 14:14:28 UTC] PHP  11. wp_is_stream($path = NULL) \wp-includes\functions.php:2180
[21-Jun-2024 14:14:28 UTC] PHP  12. strpos($haystack = NULL, $needle = '://') \wp-includes\functions.php:7288

[21-Jun-2024 14:14:28 UTC] PHP Deprecated:  str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in \wp-includes\functions.php on line 2187
[21-Jun-2024 14:14:28 UTC] PHP Stack trace:
[21-Jun-2024 14:14:28 UTC] PHP   1. {main}() \wp-admin\admin.php:0
[21-Jun-2024 14:14:28 UTC] PHP   2. require() \wp-admin\admin.php:158
[21-Jun-2024 14:14:28 UTC] PHP   3. require_once() \wp-admin\menu.php:422
[21-Jun-2024 14:14:28 UTC] PHP   4. do_action($hook_name = 'admin_menu', ...$arg = variadic('')) \wp-admin\includes\menu.php:161
[21-Jun-2024 14:14:28 UTC] PHP   5. WP_Hook->do_action($args = [0 => '']) \wp-includes\plugin.php:517
[21-Jun-2024 14:14:28 UTC] PHP   6. WP_Hook->apply_filters($value = '', $args = [0 => '']) \wp-includes\class-wp-hook.php:348
[21-Jun-2024 14:14:28 UTC] PHP   7. Bdp_Admin->bdp_register_menu('') \wp-includes\class-wp-hook.php:324
[21-Jun-2024 14:14:28 UTC] PHP   8. add_submenu_page($parent_slug = NULL, $page_title = 'Shortcode Preview - Blog Designer Pack', $menu_title = 'Shortcode Preview', $capability = 'manage_options', $menu_slug = 'bdp-shortcode-preview', $callback = [0 => class Bdp_Admin {  }, 1 => 'bdp_shortcode_preview_page'], $position = *uninitialized*) \wp-content\plugins\blog-designer-pack\includes\admin\class-bdp-admin.php:53
[21-Jun-2024 14:14:28 UTC] PHP   9. plugin_basename($file = NULL) \wp-admin\includes\plugin.php:1480
[21-Jun-2024 14:14:28 UTC] PHP  10. wp_normalize_path($path = NULL) \wp-includes\plugin.php:769
[21-Jun-2024 14:14:28 UTC] PHP  11. str_replace($search = '\\', $replace = '/', $subject = NULL) \wp-includes\functions.php:2187

Can you fix them?

You can fix them by replacing null by an empty string blog-designer-pack\includes\admin\class-bdp-admin.php line 53:

add_submenu_page( null, __('Shortcode Preview - Blog Designer Pack', 'blog-designer-pack'), __('Shortcode Preview', 'blog-designer-pack'), 'manage_options', 'bdp-shortcode-preview', array($this, 'bdp_shortcode_preview_page') );

with

add_submenu_page( '', __('Shortcode Preview - Blog Designer Pack', 'blog-designer-pack'), __('Shortcode Preview', 'blog-designer-pack'), 'manage_options', 'bdp-shortcode-preview', array($this, 'bdp_shortcode_preview_page') );