Whether you use the default WordPress login page(i.e. http://myprogrammingnotes.com/login) or create a custom login form of your own, the back end code will eventually call the core login function wp_signon to […]

Although WordPress provides default user registration mechanism, sometimes we need to add custom fields to the registration form to collect more information from the user. Here we give a design […]

WordPress redirection is useful in some situations. For example, wordpress redirects to the dashboard after login, and the WordPress logout redirect occurs when the use logs out, which takes the […]

If you  visit a wordpress page such as http://myprogrammingnotes.com/sample-page, we know that after wordpress gets the content of the page from the database table wp-posts, it will load a page […]

The content of the posts you compose will go through a series of filtering functions  before it is presented to the client. The filter tag is “the_content”. One of the […]

When you activate a new wordpress theme in the dashboard of appearance/themes, switch_theme is called with the to-be-switched theme as the parameter. switch_theme saves the $$sidebars_widgets in the theme_mod-currenttheme option, […]