Hello all,
The structure of the implementation of server side validation can be adopted by the following two methods.
Method one: The PHP script does the validation is the same one that provides the user with an input form. Say form_client_server.php
Method one: The PHP script does the validation is different from the one that provides the user with an input form. Say form_client.php (i.e. print the form for the user) and form_server.php (i.e., the Action that will be triggered when the user submit the form by clicking submit button).
Here is the question:
In both cases, how the sever script can return messages (For example, error messages) to the page that displays the form?
If possible, I would like to see a tutorial/example/book chapter that gives some detailed information for this topics.
Thank you