Where is functions php

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. The Purpose of the functions. Next Post. Join The Community.

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Forgotten Password? Retrieve your password Please enter your username or email address to reset your password. Log In. If not, you can create a plain-text file named functions. A child theme can have its own functions.

Adding a function to the child functions file is a risk-free way to modify a parent theme. Similarly, functions. Warning: If a WordPress plugin calls the same function, or filter, as you do in your functions.

Below are a number of examples that you can use in your functions. Each of these examples are allowed in your theme if you choose to submit it to the WordPress. As shown below, each of these features can be added to your functions. Be sure to close out your functions. Automatic feed links enables post and comment RSS feeds by default. Custom navigation menus allow users to edit and customize menus in the Menus admin panel, giving users a drag-and-drop interface to edit the various menus in their theme.

Function names are NOT case-sensitive. In the example below, we create a function named "writeMsg ". The function outputs "Hello world! To call the function, just write its name followed by brackets :. Arguments are specified after the function name, inside the parentheses.

You can add as many arguments as you want, just separate them with a comma. When the familyName function is called, we also pass along a name e. Jani , and the name is used inside the function, which outputs several different first names, but an equal last name:. PHP automatically associates a data type to the variable, depending on its value.

Since the data types are not set in a strict sense, you can do things like adding a string to an integer without causing an error.