Security Keys in WordPress are a string of random characters used for authorization and encryption of cookies generated by WordPress. These security keys can be defined by user in the wp-config.php file at any point in time. During initial installation, it is not necessary for a user to provide these...

In computer programming languages, an array is a special variable that can hold more than one value under a single name. It is possible to then access the values by referring to an index number or a text key. WordPress is written in the PHP programming language and hence as...

Sometimes referred to as the file path or full path, the absolute path is the location of a directory or file in a computer. It contains the root directory as well as all other sub directories that contain the file or directory. Paths are used extensively in operating systems to...

Custom Backgrounds is a theme feature in WordPress which allows theme developers to enable support for background color and image customization. If custom backgrounds support is enabled in a theme, then the users can upload their own background images to use with the theme, or select a background color. The...

CSS or Cascading Style Sheets is a style sheet language used to define visual appearance and formatting of HTML documents. WordPress themes use CSS and HTML to output the data generated by WordPress. Every WordPress theme contains a style.css file which has style rules to define the formatting of pages...

A database is a structured, organized set of data. In computing terminology a database refers to a software used to store and organize data. Think of it as a file cabinet where you store data in different sections called tables. When you need a particular file you look into that...

Filters are functions that WordPress uses to pass data through. Passing data through filters allows developers to modify the default behavior of a specific function. Functions used to filter data are called hooks. Filters and Actions together allow developers great flexibility to modify default WordPress filters and actions and even...

A Filter is a function that can be hooked to an event in WordPress (called hooks). During the execution when the event is triggered the filter is applied to the data output generated by the event hook. It is important to remember that filters perform their actions on the data...

In WordPress theme and development, Hooks are functions that can be applied to an Action or a Filter in WordPress. Actions and Filters in WordPress are functions that can be modified by theme and plugin developers to change the default WordPress functionality. Functions used to modify Actions/Filters in WordPress can...

An iFrame is an inline frame used inside a webpage to load another HTML document inside it. This HTML document may also contain JavaScript and/or CSS which is loaded at the time when iframe tag is parsed by the user’s browser. WordPress users often come across iframes when they are...