PHP - How to return the Server Validation Message back to Client side? -


The structure of the implementation of server-side verification can be adopted by the following two methods.

Method One: The PHP script performs the same verification that provides the user with the input form. Say Form_client_server.php: Method One: PHP script verifies that provides with a user's input form. Say form_client.php (i.e. print the form for the user) and form_server.php (i.e., the action will be submitted by clicking on the user submit button).

Here's the question:

In both cases, how can a message return a message (for example, error message) on the page displaying the converted script page?

If possible, I would like to see a tutorial / example / book chapter which gives some detailed information about this topic.

Thank you

You enter the output into HTML.


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