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Validating html file

These inputs will be validated to ensure, for example, that the user has entered their name. This is because collectively the radio buttons should be treated as a group (the user should select either 0, or 1, or 2, etc.). Its value is presented as its label, and clicking on it will trigger the form submission.

Any errors or omissions will be highlighted with a message alongside the relevant field. The purpose of the form is to capture user details (name, address, and email) to obtain feedback (on fruit consumption and favorite fruit) and request a brochure. There are two specific attributes that need to be set in the form tag, .

In this article you have learned how to create a simple HTML form and validate it with PHP.

Along the way a number of techniques have been used to re-display user input and display error messages.

He's also written a book about Dreamweaver CS3 for Hodder Education.

Markup validation works like the spelling checker in a word-processing program.

Any fields already completed will be left unchanged, allowing the user to simply adjust her input and re-submit the form without having to enter all of the data again. Let’s look at the PHP required for validating the form.

We need to add code which will pick up the form data and allow us to check it and create error messages if needed.In this article you’ll construct and validate a simple form using HTML and PHP.The form is created using HTML and validation and processing of the form’s contents is done with PHP.The goal is to teach you some basic HTML form elements and how their data is accessible to you in your PHP scripts.The form you’ll create contains a number of inputs: text fields, radio buttons, a multiple-option select list, a checkbox, and a submit button.For example, if you set the schema to HTML5, the editor compares the markup in your page against the schema that defines a valid HTML5 page.If you change the schema to XHTML5, the editor checks the markup in your page against the XHTML5 schema.The editor examines the markup and adds wavy red lines under the elements or attributes that are not valid.The editor determines what is valid based on the currently selected validation schema.Whichever method you use, if the form has been submitted, it should be validated.If it has not been submitted, bypass the validation and display a blank form.


  1. XHTML5 Validator Living Validator Validator Input. Document Show Image Report Show Source About this Service • More options.

  2. We have a separate article with details on validating passwords using HTML5. HTML5 Form Validation Examples HTML Validating a checkbox with HTML5.

  3. Validating Hypertext Markup Language. tips and an automated validation service for helping your HTML comply to. HTML file and have.

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