How can the action tag be properly set in the templates to ensure correct functionality?

When setting the action tag in templates, it is important to ensure that the correct URL is specified to direct the form submission to the desired endpoint. This can be achieved by using PHP to dynamically generate the URL based on the current server environment or application configuration. By properly setting the action tag, the form submission will be directed to the correct location for processing.

<form action="<?php echo $_SERVER['REQUEST_URI']; ?>" method="post">
    <!-- Form fields go here -->
    <input type="submit" value="Submit">
</form>