What role does the HTML context play in ensuring proper functionality of buttons triggering PHP actions within a webpage?

The HTML context plays a crucial role in ensuring proper functionality of buttons triggering PHP actions within a webpage by defining the form elements and their corresponding action URLs. To ensure the button triggers the intended PHP action, the form method should be set to "post" and the action attribute should point to the PHP file handling the action. Additionally, the button should have a name attribute to identify it in the PHP script.

<form method="post" action="process.php">
  <button type="submit" name="action" value="doSomething">Click me!</button>
</form>