How can maxlength attribute be used in HTML input elements to restrict input length in PHP forms?

To restrict input length in PHP forms, you can use the maxlength attribute in HTML input elements. This attribute specifies the maximum number of characters that can be entered into an input field. By setting the maxlength attribute to a specific value, you can limit the length of user input in PHP forms, helping to prevent data entry errors or database issues. 

<form action="submit.php" method="post">
  <label for="username">Username:</label>
  <input type="text" id="username" name="username" maxlength="20">
  <input type="submit" value="Submit">
</form>

Keywords

PHP HTML input elements maxlength attribute form validation

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