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 Word press plugin

WordPress plugins are bits of software that can be uploaded to to extend and expand the functionality of your WordPress site. Note: One of the primary advantages of using the self-hosted version of WordPress from WordPress.org is the ability to upload and use plugins on your WordPress site.


WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. In the WordPress community, there is a saying that goes around: “there’s a plugin for that”. They make it easier for users to add features to their website without knowing a single line of code.

There are thousands of WordPress plugins available for free at the official WordPress plugin directory. At WPBeginner, we write about all the best WordPress plugins. We have even shared a list of all the plugins we use. Aside from free plugins, there are tons of amazing commercial ones available from third-party companies and developers.


Themes


WordPress users may install and switch among different themes. Themes allow users to change the look and functionality of a WordPress website without altering the core code or site content. Every WordPress website requires at least one theme to be present and every theme should be designed using WordPress standards with structured PHP, valid HTML (HyperText Markup Language), and Cascading style sheets (CSS). Themes may be directly installed using the WordPress "Appearance" administration tool in the dashboard, or theme folders may be copied directly into the themes directory, for example via FTP. The PHP, HTML and CSS found in themes can be directly modified to alter theme behavior, or a theme can be a "child" theme which inherits settings from another theme and selectively overrides features.WordPress themes are generally classified into two categories: free and premium. Many free themes are listed in the WordPress theme directory (also known as the repository), and premium themes are available for purchase from marketplaces and individual WordPress developers. WordPress users may also create and develop their own custom themes. The free theme Underscores created by the WordPress developers has become a popular basis for new themes.


Plugins


WordPress' plugin architecture allows users to extend the features and functionality of a website or blog. As of June 2019, WordPress.org has 55,131 plugins available, each of which offers custom functions and features enabling users to tailor their sites to their specific needs. However, this does not include the premium plugins that are available (approximately 1,500+), which may not be listed in the WordPress.org repository. These customizations range from search engine optimisation , to client portals used to display private information to logged in users, to content management systems, to content displaying features, such as the addition of widgets and navigations bars. Not all available plugins are always abreast with the upgrades and as a result they may not function properly or may not function at all. Most plugins are available through WordPress themselves, either via downloading them and installing the files manually via FTP or through the WordPress dashboard. However, many third parties offer plugins through their own websites, many of which are paid packages.

Web developers who wish to develop plugins need to learn WordPress' hook system which consists of over 300 hooks divided into two categories: action hooks and filter hooks.



Other features


WordPress also features integrated link management; a search engine –friendly, clean permalink  structure; the ability to assign multiple categories to posts; and support for tagging  of posts. Automatic filters are also included, providing standardized formatting and styling of text in posts (for example, converting regular quotes to smart quotes). WordPress also supports the Trackback and Pingback standards for displaying links to other sites that have themselves linked to a post or an article. WordPress posts can be edited in HTML, using the visual editor, or using one of a number of plugins that allow for a variety of customized editing features.



Multi-user and multi-blogging


Prior to version 3, WordPress supported one blog per installation, although multiple concurrent copies may be run from different directories if configured to use separate database tables. WordPress Multisites (previously referred to as WordPress Multi-User, WordPress MU, or WPMU) was a fork of WordPress created to allow multiple blogs to exist within one installation but is able to be administered by a centralized maintainer. WordPress MU makes it possible for those with websites to host their own blogging communities, as well as control and moderate all the blogs from a single dashboard. WordPress MS adds eight new data tables for each blog.