How to Develop WordPress plug-ins

For many WordPress users, plug-ins are required. WordPress plug-in development allows users with few or no programming skills to expand their blog functions. There are many forms of plug-ins. In WordPress, plug-ins can do almost anything.

WordPress is not only a simple blog platform, but also a CMS platform with extremely powerful functions and unlimited scalability. At present, WordPress has a large number of users both in China and abroad, and the number of such users is unmatched by other blog platforms, wordPress fans have been developing themes and plug-ins for them for a long time. With these themes and plug-ins, you can almost configure WordPress as any type of site.

Sometimes, the plug-ins developed by others are not necessarily suitable for everyone's needs. If you want to modify the plug-ins, you can't do it. In fact, as long as we can understand the working mechanism of the plug-in and refer to the official WordPress documentation, we can also make some modifications to those plug-ins with the help of the search engine, you can also develop some simple plug-ins.

　　Core of plug-ins

In general, the core of the plug-in is the two functions used to add Hooks)

Add_action ($ hookname, $ callbackfunction)

Add_filter ($ hookname, $ callbackfunction)

These two methods are very important, and almost all plug-ins need to use them.

Actions is a special starting point reserved by the wordpress core code, or triggered when a specific event is executed, such as when an article is published or when a visitor leaves a message. For more information, see

Filters should be a filtering mechanism for the data transmission process during wordpress execution. For example, when an article is stored in a database, or the article is used to retrieve data from a database, this process is displayed in the browser.

After learning about this, you can develop WordPress plug-ins. Before you start, you need to pay attention to three things: first, get a personalized name for the plug-in, the more personalized the better, in case of duplicate names conflict with other plug-ins. Second, the Code must contain comments, not for yourself, but for others who want to modify your code. Third, use the latest WordPress version for development and testing.