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 […]

WordPress sites often have a search box on the navbar or sidebar. Type some words in it and press enter, you will get some posts displayed on the search results […]

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 […]

Although wordpress reads files of themes to get the theme information to display in the administraion panel, the load of active theme(such as load of theme specific functions) is done […]

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, […]

If you log in WordPress backend and click Appearance/Themes menu, you will see all installed themes. If you put a theme directory under wp-content/themes/, you will see the new theme […]

If your use the returned data of an ajax call, you will find there is an unexpected extra 0 in the data. For example, if your action function is: function […]

Ajax is used by wordpress for communication between browser and server. For example, after you login wordpress dashboard, drag a widget onto a sidebar, fill some settings and click the […]

A function in cron.php wp_cron() is hooked to init action to check crons(got from the ‘cron’  option in the wp_options table). if it sees there is a cron that should […]