In what scenarios should PHP developers opt for using the POST method instead of the GET method for form submissions?

PHP developers should opt for using the POST method instead of the GET method for form submissions when sensitive information such as passwords or personal details are being sent. POST method sends data in the request body, making it more secure as it is not visible in the URL. It is also recommended when submitting large amounts of data that could exceed the URL length limit.

<form method="post" action="process_form.php">
  <label for="username">Username:</label>
  <input type="text" id="username" name="username">
  <label for="password">Password:</label>
  <input type="password" id="password" name="password">
  <button type="submit">Submit</button>
</form>