Question

how can I check if the user filled some textboxes upon submit? My textboxes have different id and name.

If the user did not fill the required like password the form is not continued.

Thank you.

Answer 1

You can do this using JavaScript or within the script itself.

If using javascript, you simply check the form fields against your requirements before allowing the form to submit. However, you may still need to implement this in the script in case ofr some reason they have javascript turned off.

Basically, in the script, you check the values of the form when they submit:

if($_GET['field_name']) !== 'the value I expect') {
  // show the form again with errors
}

// continue

Hope that helps.