Where is functions php in wordpress theme

Get Up and Running Now 4 Responses. Great article on functions. I have written an article on wordpress functions. Your site always provides useful content to WordPress developers. Looking forward more ones from you. Thanks for this guide. Great guide. The third argument, 10 , is priority : what order this filter function will execute relative to all the other filter functions hooked to the same filter.

Would execute after both of those functions. The fourth argument, 4 , refers to how many arguments the filter function is passing along. Search for:. Adding Functionality with functions. What follows This functions.

Get Up and Running Now. Key Takeaways: functions. What functions. Uses of functions. Creating Globally Available Functions functions. However, it can be difficult to know where to start — or predict what your changes will actually do. A perfect place to learn is with the functions. This is a common location for making changes and adding code to WordPress. The WordPress functions. To the untrained eye, it may not look like much, but the functions file is a powerful tool that enables you to do a lot of interesting things.

The WordPress Codex describes the functions file like this:. In simple terms, the functions file enables you to add custom code to your site. It lets you create new functions or reference existing ones in customized ways. As the Codex points out, this makes the functions file very similar to a plugin, but there are some differences between the two. The most important difference is that the functions file belongs to a specific theme.

This way, you can update the parent theme without losing your changes. Whether you choose to use the functions file or create a plugin is entirely up to you, depending on your needs. Editing your functions file is as easy as using a standard text editor, like TextEdit or Notepad. Before you get started, it is vitally important that you create a backup of your site, and save the original, unedited functions.

This will enable you to restore your site if something goes wrong during the editing process. If you have access to the WordPress admin interface, you can edit the functions file directly from the Theme Editor.

On the right-hand side of the screen, you can see a list of all files contained in the theme. These differ depending on which theme you use, but one of the top options should be Theme Functions functions.

Simply click on the file to open it in the editor. If you are unable to use the admin dashboard or prefer to configure files directly, you can also access the functions file using an FTP tool such as FileZilla. Open your FTP tool and enter your hosting credentials to connect to your site. As described in The WordPress Codex, you can use this feature to call PHP functions and built-in WordPress , defining your own settings and enabling certain features such as post thumbnails and navigation menus.

This way, you automate the process and avoid the need to rewrite code. Your code may contain one or more functions, and when it calls a function, it will wait for it to return a value. When this value is returned, or all processes of this function are finished, your code will continue its operation.

It is not difficult at all to find the functions. In fact, there is more than one way to do it. The first is through the WordPress editor itself. On the right, you will see an extensive list of files. Look for the file functions. By clicking it, you will be redirected to functions. Once you find the functions. Although simple, this method is not always the most recommended. This is because, without proper care, you can jeopardize the security of your website , since all edits to the functions file will disappear when the theme is updated or changed.

Besides that, code errors can cause huge problems. A simple typo can produce a white screen of death or even lock you out of your WP account.

A safer alternative is the use of a plugin specialized in this type of editing, such as Code Snippets. After you have installed and activated the plugin, access the menu, and click the Add New option. Below, the Description and Tags fields are, respectively, for you to add a description of the code and tags. Both are optional but recommended. We recommend you do not change this option if you do not know exactly what you are doing.

The options define where your code will be executed. The correct use of functions.