Lukic Code Snippets

=== Lukic Code Snippets === Contributors: wplukic Donate link: https://www.paypal.com/paypalme/lukicwebdesign Tags: snippets, performance, admin, security, seo Requires at least: 5.8 Tested up to: 6.9 Stable tag: 2.9.1 Requires PHP: 7.4 License: GPLv2 or later License URI: https://www.gnu.org/licenses/gpl-2.0.html

A modular performance toolkit with 37 code snippets you can toggle on and off.

Description

Lukic Code Snippets replaces a dozen single-purpose plugins with one lightweight dashboard. Every snippet is loaded conditionally - if it is toggled off, its file is never included, giving you zero performance impact for inactive features.

What's Included

Admin Interface

• Admin Bar Site Visibility Indicator
• Wider Admin Menu
• Show IDs in Admin Tables
• Show Featured Images in Admin Tables
• Clean Dashboard
• Hide Admin Bar on Frontend
• Hide Admin Notices
• Custom Admin Footer Text
• Show ACF Fields in Admin Tables
• Show Custom Taxonomy Filters
• Show Current Template
• Admin Menu Organizer
• Show Active Plugins First
• Word Counter
• Login Page Designer

Content Management

• Enable Classic Editor
• Post & Page Duplicator
• Content Order
• Search Posts by Slug

Media Management

• SVG Upload Support
• Media Replacement
• Media Size Column
• Image Sizes Panel
• User Profile Image

SEO & Performance

• Hide WP Version
• Disable XML-RPC
• Meta Tags Editor
• Redirect Manager
• Fluid Typography Calculator

Security

• Hide Author Slugs
• Security Headers Manager

Utility & Development

• Maintenance Mode
• Limit Revisions
• Custom Database Tables Manager
• Image Attributes Editor
• Last Login User
• Disable Comments

Key Design Principles

• Truly modular - inactive snippets are never loaded (require_once inside toggle check)
• Auto-save - toggles save via AJAX instantly; no manual save required
• Zero external requests - all CSS/JS assets are bundled locally (DataTables, Magnific Popup)
• One text domain - every string uses lukic-code-snippets for full translation readiness
• Clean uninstall - choose to preserve or delete all data on plugin removal

Installation

1. Upload the lukic-code-snippets folder to the /wp-content/plugins/ directory, or install the plugin through the WordPress Plugins screen.
2. Activate the plugin through the Plugins screen.
3. Navigate to Code Snippets in the admin sidebar.
4. Toggle any snippet on or off. Settings auto-save instantly.

Frequently Asked Questions

Will inactive snippets slow down my site?

No. Each snippet file is loaded with require_once inside a conditional check. If a snippet is toggled off, its PHP file is never included - the overhead is a single isset() check per snippet.

Will my settings be lost if I deactivate or delete the plugin?

By default, all settings and custom tables are preserved when you deactivate or delete the plugin. If you want a clean removal, go to Code Snippets > Settings and select "Delete all plugin data when plugin is deleted."

Does this plugin work with multisite?

The plugin activates per-site in a multisite network. Each site has its own snippet toggles and settings.

Is the database safe with the DB Tables Manager?

Yes. The manager is read-only by default (view, search, export). Row editing is available for tables with a primary key, and all queries use $wpdb->prepare() with validated table and column names. There are no "Drop Table" or "Delete Row" buttons exposed.

Can I translate this plugin?

Yes. All UI strings use the lukic-code-snippets text domain with proper __() and _e() wrappers. A /languages directory is included, and WordPress loads plugin translations from it.

Screenshots

1. Main snippets dashboard with toggle switches and tag filtering.
2. Login Page Designer with live preview panel.
3. Redirect Manager with hit tracking and wildcard patterns.
4. Database Tables Manager showing table structure and data.
5. Maintenance Mode settings with customizable page and live preview.

Changelog

2.9.1

• Architecture: Refactored Maintenance Mode CSS to completely separate static layout into maintenance-public.css and use native CSS custom properties for dynamic configuration values.

2.9.0

• Architecture: Migrated 40+ inline CSS/JS snippets to wp_add_inline_style() and wp_add_inline_script() for CSP compliance.
• Security: Hardened all AJAX handlers with sanitize_text_field() and proper nonce verification.
• Security: Fixed PHP_INI_PERDIR restriction on upload limits using WordPress native filters.
• Compliance: Updated admin dashboard CTAs (Guideline 11) for repository standard.
• Performance: Fixed documentation search logic and AJAX button response classes.
• Fix: Resolved self-signed certificate issues in internal diagnostic tools.

2.8.1

• Fix: Redirect Manager settings now save properly when toggled off.
• Fix: Maintenance Mode IP exclusions now correctly handle local loopback URLs (::1 and 127.0.0.1) and varied string formats.
• Fix: Add missing transients to the clean uninstallation routine.
• Docs: Clarify Redirect Manager trailing slash URL usage rules.

2.8.0

• New: Login Page Designer snippet - full visual customization of the WordPress login page (logo, background, form card, colors, button) with a real-time live preview panel.
• Security: Added $wpdb->prepare() for all LIMIT clauses in the Database Tables Manager.
• Security: Fixed redirect delete bug caused by table name case mismatch.
• Security: Escaped all dynamic class and number_format() output.
• Fix: Lukic_Helpers::is_plugin_admin_page() now correctly matches lowercase page slugs.

2.7.6

• New: AJAX-powered featured image uploading and editing in admin tables.

2.7.5

• Performance: Fixed translation loading warning; added registry caching; deferred admin class init.
• Fix: Standardized text domain globally.

2.7.0

• New: Disable Comments snippet (preserves WooCommerce reviews).
• New: Show Active Plugins First snippet.
• New: User Profile Image snippet.
• New: Admin Menu Organizer and Hide Author Slugs snippets.

2.3.0

• New: Centralized snippet registry; Maintenance Mode on/off switch.
• Improvement: Asset Manager, Security Headers UI, DataTables unification.

2.2.0

• New: Database Tables Manager with search, pagination, row editing, CSV export.

2.1.0

• New: Auto-save for snippet toggles with intelligent page refresh.

2.0.0

• Major: Architectural overhaul - CSS framework, Asset Manager, reusable header component, Helpers class.

1.6.0

• New: Security Headers, Limit Revisions, Image Sizes Panel, Redirect Manager, DB Tables Manager.

1.0.0

• Initial release.

Upgrade Notice

2.8.0

Security hardening: SQL injection vectors fixed in DB Tables Manager, redirect delete bug fixed. Recommended update for all users.