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I need to validate a form in php and display some error messages in the view if there are validation errors. The problem is that once the form is submitted, sending the user back to the page will clear all the of the completed form fields. Is there a simple way to not lose the unvalidated form data?
The only solution I can come up with is reverse engineering the $_POST variable, but I’d like a more elegant way to do it.
Don’t send the user anywhere, but re-render the form right where you are, pre-populating the form with the entered values. That would be the most common method.
The second way would be storing the values in session variables, but that should be the last resort if the project structure doesn’t allow for the first approach.