How can input fields and submit buttons be connected in PHP to update database values based on user input?

To connect input fields and submit buttons in PHP to update database values based on user input, you can create a form with input fields for the user to enter data, and a submit button to send the data to a PHP script for processing. In the PHP script, you can retrieve the values from the input fields using $_POST, sanitize the data to prevent SQL injection, and then update the database with the new values. 

<form method="post" action="update.php">
  <input type="text" name="new_value">
  <input type="submit" value="Update">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $new_value = $_POST['new_value'];
  
  // Sanitize the input data
  
  // Update the database with the new value
}
?>

Keywords

PHP input fields submit buttons database values user input

Related Questions