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---
layout: docs
title: "Form elements"
description: "Custom form elements for Moodle"
date: 2020-01-14T16:32:24+01:00
draft: false
weight: 30
tags:
- In development
---
## How to use moodle forms
Forms are constructed using lib/formslib.php. Using the addElement methods in php a set of different form element types can be added to a form. For more info visit the [Moodledocs](https://docs.moodle.org/dev/lib/formslib.php_Form_Definition) page for forms
{{< php >}}
$mform->addElement('button', 'intro', get_string("buttonlabel"));
{{< / php >}}
Form elements are styled using Moodle templates which are rendered through PHP. Themes can override these templates.
Form elements are styled using the .form-control class, see the [Bootstrap](/bootstrap-4.3/forms/input-group/) docs for more info.
## Example form elements
The example form below is showing an iframe with an actual Moodle form. Use the toggle options to display the different states for the form.
<iframe src="../../../../examples/formfields.php" style="overflow:hidden;height:4000px;width:100%;border:0" title="Moodle form fields"></iframe>
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