HTML Form Validation

What is Validation?

Validation ensures user inputs are correct before submitting form.

Example

<form method="post">

  <input type="text" name="name" placeholder="Enter name" required minlength="3"><br><br>

  <input type="email" name="email" placeholder="Enter email" required><br><br>

  <button type="submit">Submit</button>

</form>

Try it Yourself

Live Result (PHP Validation)

required

Field must be filled

minlength

Minimum characters

pattern

Regex validation

Summary

Validation checks user input
Prevents wrong data submission
Can be done using HTML + PHP

Previous Next