4. OTHER RESOURCES/FUNCTIONS
• plugins_url – automatically build the URL to a specific file
• plugin_dir_path – automatically retrieve absolute path to directory
• WPDB Class – access and manipulate the WordPress database
• WP_HTTP Class – retrieve Web resources without depending on cURL
• Transients API – store cache information with explicit expiration times
5. RESOURCES
• The WordPress Codex
• Plugin API - http://codex.wordpress.org/Plugin_API/
• Settings API - http://codex.wordpress.org/Settings_API
• Function Reference -
http://codex.wordpress.org/Function_Reference
• Professional WordPress Plugin Development - http://j.mp/MxjUfG
• WordPress Plugin Developer Center - http://j.mp/MxkDNR
• Subversion Utilities
• TortoiseSVN (Windows) - http://tortoisesvn.net/
• SVNX (MacOS) - http://code.google.com/p/svnx/
• RabbitVCS (Linux) - http://rabbitvcs.org/