The <form> element is a container for different types of input elements, such as: text fields, checkboxes, radio buttons, submit buttons, etc. All the different form elements are covered in this chapter: HTML Form Elements.

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The HTML <form> Elements. The HTML <form> element can contain one or more of the following form elements: <input> <label> <select> <textarea> <button> <fieldset> <legend> <datalist> <output> <option> <optgroup>

The <form> tag is used to create an HTML form for user input. The <form> element can contain one or more of the following form elements: <input> <textarea> <button> <select> <option> <optgroup> <fieldset> <label> <output>

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A form is a section of an HTML document where you put input controls (text boxes, check boxes, radio buttons, and pull-down lists). Creating an HTML Input Page Razor Example

You need to validate form data to protect your script from malicious code. Think SECURITY when processing PHP forms! This page does not contain any form validation, it just shows how you can send and retrieve form data.

JavaScript Form Validation. HTML form validation can be done by JavaScript. If a form field (fname) is empty, this function alerts a message, and returns false, to prevent the form from being submitted: