PHP在发送到“动作”之前验证表单

Question

I've ended up in a situation I've not been in before. A client has forms provided by a third party company who take care of various newsletters and other admin tasks when forms are submitted, but amazingly they have NO validation. The form action goes straight to another server and not to the server I'm working on. Therefore I don't see how I can add some validation myself..

Ideally, I need to vet the form for spam and validate a captcha code, and then send to the original form action. I've added some front-end validation with jS, but this is of course only for enhancing the UI and not for serious validation.

Does anyone know if I can do anything with PHP..? Many thanks.

Answer 1

You could basically submit the form to a PHP page of yours, validate there, and if correct send back the request server-side to the original target (3rd party site). Strange though that a provider doesn't offer any kind of validation...