Using WordPress ‘get_previous_post_link()’ PHP function
Retrieves the previous post link that is adjacent to the current post.
Settings
Using WordPress ‘is_plugin_active_for_network()’ PHP function
Determines whether the plugin is active for the entire network.
Using WordPress ‘get_user_setting()’ PHP function
Retrieves user interface setting value based on setting name.
Using WordPress ‘media_upload_flash_bypass()’ PHP function
Learn how to use the WordPress'media_upload_flash_bypass()' PHP function, which displays a message to inform users about the availability of the multi-file uploader when the Flash uploader is disabled