Flashes/status message with WHMCS?

[namhost]

I am creating my own custom form that allows a user to create content. I want to validate the input and display an error message if he did something wrong. This is for a module in the admin backend.

1. Is there a way to display an error message with PHP. I see there are "Notifications" but that is total overkill. I just want to manually trigger a success or error message. 

And then failing that:

2. Is there a built in way to do form with WHMCS?
3. Is there a way to deal with validation?

[weba]

On 5/15/2020 at 2:44 PM, namhost said:

I am creating my own custom form that allows a user to create content. I want to validate the input and display an error message if he did something wrong. This is for a module in the admin backend.

1. Is there a way to display an error message with PHP. I see there are "Notifications" but that is total overkill. I just want to manually trigger a success or error message. 

And then failing that:

2. Is there a built in way to do form with WHMCS?
3. Is there a way to deal with validation?

Hi! Did you find any answers on this issue ?