Boopathi Rajan

In WordPress, a “taxonomy” is a grouping mechanism for some posts (or links or custom post types). There are four default taxonomies in WordPress they are

• Category
• Tag
• Link Category
• Post Formats

You are also free to create your custom taxonomies too.

• Use of multiple plugins can make website heavy to load and slow
• Only utilizes PHP
• Sometimes updates can lead to loss of data, so you always need a backup copy
• Modifying images and tables are difficult.

You can enable debug mode in WP by editing wp-config.php file and changing WP_DEBUG constant value to true.

• Install a security plugin.
• Re-install the latest version of WordPress.
• Change password and User-IDs for all your users.
• Check your themes and plugins are up to date.
• Scan the system using Anti-virus program integrated into your hosting panel.

A template tag is a code that instructs WordPress to “do” or “get” something. Like in the header.php, we use the tag bloginfo ( ‘name’ ) to get “Site Title” from the wp-options table which is set in Setting > General in WordPress admin.

The the_title() template tag is used to display the post title.

wp_list_cats() is to display categories.

get_header() for getting header.

get_sidebar() to display the sidebar on page.

get_footer() to get the footer content on page.

WordPress has these six roles has by default and each role has several capabilities.

• Super Admin (Multisite)
• Administrator
• Editor
• Author
• Contributor
• Subscriber

WordPress powers more than 28% of the web and this figure is not limited it rises every day. Everything from simple websites, to blogs, to complex portals and enterprise websites, and even applications, are built with WordPress.

Here are some of the features of WordPress.

• It’s Simplicity
• Easier publishing tools
• Search Engine Optimized
• User Management
• Media Management
• Easy Theme System
• Extend Easily with Plugins
• Multilingual Support
• Easy Installation and Upgrades
• Multilingual Support
• Built-in Comments System
• Custom Content Types

• Create a unique name
• Create the plugin’s folder
• Create a sub-folder for PHP files,  translations, and assets
• Create the main plug-in file and fill in the header information
• Create activation and de-activation functions
• Create an uninstall script
• Create a readme.txt file
• To detect paths to plugin file use proper constants and functions

• Easy installation and upgrade
• In-built SEO engine
• Easy theme system
• Flexibility
• Multilingual- available in more than 70 languages
• Own data- no unwanted advert on your website
• Flexibility and Easy publishing option

To add custom fields under WordPress general settings without hacking core code, use the below example. Here’s how to add custom field under WordPress general settings page.

add_filter('admin_init', 'register_my_general_settings_fields');
function register_my_general_settings_fields()
{
register_setting('general', 'custom_field', 'esc_attr');
add_settings_field('custom_field', '<label for="custom_field">'.__('Custom Field' , 'custom_field' ).'</label>' , 'general_settings_custom_fields_html', 'general');
}

function general_settings_custom_fields_html()
{
$value = get_option( 'custom_field', '' );
echo '<input type="text" id="custom_field" name="custom_field" value="' . $value . '" />';
}

Please let me know, If you have any queries or feedback.