The example below shows how to throw validation exceptions with the custom exception. You can then retrieve the error messages from the calling method. It is not good ...

require_once plugin_dir_path(__FILE__) . 'includes/class-nz-form-validation.php'; require_once plugin_dir_path(__FILE__) . 'includes/class-nz-form-validation-admin ...

The validation of user input on a Web-based form is not a new, but a recurring, topic. Validation ensures that the user has entered correct data in an HTML form. There are two types of validations: ...

What is the best way to check valid user input in forms? Checking names and email address and phone numbers, using if/else statements? Regular expressions? <br>I am finding lots of references to both ...