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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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