How to Create a Plugin for WordPress



In a matter of minutes, you can extend your website’s functionality with a wide range of plugins. However, there are times when no plugin exists to solve your problems. Developing a WordPress plugin is a lot easier than you might think.
In fact, a plugin can be created with as little as a few lines of code and with no prior programming experience or knowledge.
Here, we’ll cover the fundamentals of creating a WordPress plugin and explain how plugins work. As a final chapter, I’ll go over everything you’ve been dying to know about creating your own WordPress plugin. To get the ball rolling, we’ve got a lot to cover!

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The fundamentals of a plugin for WordPress

Plugins are all too familiar to anyone who is familiar with the WordPress platform. ” Plugins are ways to stretch out and add to functionality that already exists in WordPress. ” according to the official documentation.

In accordance with the WordPress theory,

The core of WordPress is referred to as the “centre” of the platform because it contains a relatively small number of features. Plugins are add-ons that you can download and use to enhance or modify a programme. According to WordPress, a feature should be remembered for centre if it is likely to be used by at least 80% of all users. It should be a plugin in any other way.
As a result, plugins offer a wide range of possible outcomes. Selects can be used in structures and popups. They can be extremely simple, like Hello Dolly, which if you enable it will show part of Hello Dolly verses in the WordPress dashboard if you enable it. Or, on the other hand, they can be extremely broad like the Jetpack plugin, which has many new settings and features.
This means that plugins are one of the most important aspects of WordPress. They allow you to add almost any feature to your website without having to learn how to code. You have the option of using one of the many thousands of free plugins or paying for a premium subscription. With the help of a few mouse clicks, you can download and install WordPress plugins.

Beginner web developers can benefit greatly from WordPress.

People who want to start their own chain of events will benefit greatly from plugins. Recalling this final point is critical. It is possible to use and test the code of WordPress and its plugins because they are open source.
A great way for budding developers to learn about the inner workings of WordPress and begin creating plugins of their own.

Plugins and topics are distinct.

Plugins and topics are distinct.
Start by defining the difference between subjects and plugins. This may appear to be a prominent qualification at first glance. Most likely, a theme simply alters the look and feel of your website, while a plugin adds additional features. The truth, however, is a little more bleak.
While a plugin can alter the site’s look and feel, a topic can alter its functionality. To make your site more useful, WordPress includes a functions.php file with each theme. It’s essentially the same as a plugin doing the same thing. A plugin or functions.php will work just as well, and you can use the same code in both places.
In subjects, when you add code to functions.php, it’s linked to the current topic you’re working on. You might find it useful if you’d like to change the subject’s functionality, or if you’d like to quickly add a new feature without having to write a full plugin. When creating a subject, you can also use this method to add custom capabilities.
This means that if you decide to change topics, your code is currently inactive. However, plugins are free elements that are usually not tied to a specific subject, so you can switch topics without losing any plugin features. Using a plugin instead of a subject makes it easier to share the functionality you want to create.

How Plugins Function: Hooks, Actions, and Filters: An Overview

The fact that plugins are literally built into the core of WordPress has already been mentioned. ” Hooks ” are used to allow one piece of code to interact with another piece of code. As a result, snares are responsible for determining when and where a plugin is actually used.

Consider, for example, a plugin that alters the blunder message displayed when a user tries to sign in with a wrong password on your site. A snare is set by the error message in this case. The code that displays that message can be modified by attaching a plugin to the code.

When it comes to WordPress, there are two types of snares.

Using actions, you can add or modify WordPress features.
Actions’ performance can be altered by using these channels.
The way Hooks work, as you might have guessed, is a little bit different. However, this should give you a clearer picture of the differences between the two types of relationships. Although we recommend reading the developer manual to learn more about all of the plugin’s various Hooks. Until then, that is all you need to know.

Getting the Most Out of the WordPress Developers’ Guide to Plugin Development

Programming knowledge would be extremely beneficial. Making your own plugin instead of modifying someone else’s is a good example of this. It is easier to follow WordPress coding guidelines for plugin improvement if you have a strong technical foundation.
Prior to creating a WordPress plugin, you should also think about how to name your plugin. That goes for the plugin as well as its functionalities. When different parts of the same website have the same name, you should avoid naming similarities.
It will have difficulty with a WordPress capability that already uses the string you use to name a capability in your plugin add media page. Prefixing each capability with an exceptional prefix is the best way to avoid this.
The plugin’s structure must also be decided upon. When it comes to practicality, this means deciding whether or not to use a single file for your code or spread it out across multiple files. You’ll also need to think about how to organise your plugin folders.
To become an undeniable WordPress developer, there are obviously many more interesting points to consider. Plugin security, for example, is critical if you want to be certain that your plugin is secure. If you’re going to distribute your plugin, it’s a good idea to include some documentation.
A lot of this is only relevant if you’re creating plugins that other people can use, which I doubt you are.

Making Your First WordPress Plugin: A Quick Guide

Building your first plugin with minimal coding is a great idea right now. A plugin will be created in the following steps that will change the text of a Read More link in a post if the Read More tag is embedded in it.

Creating a Demonstration Environment

Always use a test environment whenever you’re creating anything, whether it’s a plugin or a change to your website. It’s also known as “site staging” or “local Environment” depending on where the site is hosted.
A private copy of your site should be used for testing, regardless of where it is. There is no risk of damaging your site by making changes to its files and functionality. Errors can be particularly damaging to your site when working with centre files and plugins.
Setting up a test site is simple, thanks to the abundance of online resources.

Creating a Local Environment: A Technique

It is recommended that you use Desktop Server to create a local climate. Installing a local version of WordPress on your computer is made simple by this application.
A web-based staging page can also be created. Just like your real site, but only you and other administrators have access to it.
You can go back to the original version later and try to replicate the changes you made on your staging site.
Now that you’ve set up a risk-free testing environment, it’s time to create the WordPress plugin itself.

Create a New Plugin File in Step 2

You need access to your site’s directory in order to begin developing a new plugin. SFTP, a method of accessing and managing files on a remote server, is the simplest way to accomplish this. We’ll use a client called FileZilla in this example because it’s both free and easy to use.
Start FileZilla and log in with the SFTP credentials provided by your web host. Once you’ve logged in, you’ll want to go to the /wp-content/plugins/ directory to find your plugins.

You’ll need to create a new folder in this directory in order to install your new plugin. Now is the time to get started and give it a unique name. Plugin absolute first-plugin is the name we’ve given to it.
This is where all of the plugin’s files reside on your site. You’ll need just one file for this simple plugin, which you’ll create now. The plugin code will be contained in a PHP file.
Open the new absolute first-plugin directory and choose Create new file from the context menu by right-clicking on it.
You’ll be asked to give the file a name in this step. Call it absolute first-plugin.php instead of absolute first-plugin (make certain to use the appropriate file expansion). This file has now been added to the folder and can now be accessed.
The first thing you should do is add some basic information to the document. WordPress will make use of this data to display the plugin’s name, content, and other details. View/Edit the PHP file in order to do this. Open the file in any text editor, such as TextEdit or Notepad, if prompted to do so.
So now that the file is empty, it’s time to add the text that goes with it.

It’s the very first plugin I ever made.


/** The plugin’s URI is:

It’s my very first attempt at writing a plugin.

* This is the first release of the product.

Here’s the author’s name: as the author’s url


Before you save the file, be sure to update the details to reflect your current situation. Re-uploading the file will be requested, so click Yes.
When the process is complete, the plugin will appear in your site’s admin dashboard. Now that you’re logged in, take a look at your plugins.
Plugin activation is now available in the admin panel, so go ahead and give it a shot. It’s clear that this plugin is still inactive. As a result, we haven’t added any new features or functionality to it

Installing Your Plugin After Adding the Code

This plugin, as we mentioned earlier, aims to change the text that appears when you use the Read More tag. ” The Insert Read More tag symbol can be seen by creating a new blog entry and clicking it.
A “read” link has replaced the label in the post, so it’s best to distribute it to the front of your site.
Our goal is to alter this text. To do this, go back to the beginning of your absolute first-plugin.php file.

what’s the name of the function that modifies read more links?

You can use get permalink() to get the URL of an additional link, such as “https://more-link.”

‘a>Click here to read!’;


adding a filter to the ‘the content more link,’

Then, at the end of the file, add a new line and include the code that goes with it.

Let’s take a look at what this code entails in more detail. A new “dh modify read more link” capability is created as a result of this change. “dh” prefix is used to ensure that this name is unique.

“Click to Read!” appears as an anchor text when this feature retrieves a post’s URL. “read more” is replaced by this text. Obviously, you are free to edit this text to suit your needs.

Using a channel, the last line of this code connects to a Read More link capability called the content more link. The channel instructs WordPress to refer to our new feature by its new name, which replaces the standard link.

The plugin file is now ready for saving. After activating the plugin, this feature should be available immediately. To see if the link text has changed, go to your site and take a closer look.

Congratulations if it succeeds! It’s best if you double-check your code to see if everything is correct. Make sure that the plugin is activated and that all of its capabilities are properly named.

This is the final step: Export then re-install it on the main site.

On a main site, you can now use your new plugin. For the most part, this is the easiest step. It’s as simple as creating a ZIP file from the absolute first-plugin folder. Packing your WordPress plugin is as simple as right-clicking the folder and selecting the option to pack.
Another option is to right-click on the folder and select “Download” if you built your WordPress plugin via SFTP.
As previously mentioned, you can zip the folder once it has been downloaded to your PC.

Upload the compressed file to your main website. Add a new plugin to your WordPress dashboard by clicking the Add New button in the Plugins section.

Next, you can choose to upload a plugin, which lets you select a plugin file from your computer.

Click Install Now and select the absolute first file. Activating the plugin is as simple as visiting the plugin’s main page and clicking the “Activate” button.

You’re all finished now!

You’ve successfully completed the creation of your first WordPress plugin and uploaded it to a live site. If this experience has piqued your interest in plugin development, that’s fantastic! Someday you might have your own WordPress plugins in the directory. Who knows?
Besides being incredibly user-friendly, WordPress also offers a tonne of flexibility. Anyone can contribute new features to the platform because it is open source. Making your own plugins is the best way to get started.


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