How to generate automatic numbering that sent to email : <p>First of all I'm going to tell a bit about myself. I have an adequate knowledge about HTML, CSS. For PHP, I just started to learn.</p>

<p>I'm building a website using Wordpress, and using Elementor. So in this Elementor plugin, there's a function to build form, capture it and sent to our chosen email.</p>

<p>Currently I want to build a registration page that contain a form. The form will contain basic requirement such as name, age, address etc. So when a person fills the form, it will automatically be captured by the system and sent to our chosen email.</p>

<p>The problem is, I want to put numbering to each registration made on the form sent to the email. Example: After a user has fill the form, I got an email stating that there was a new registration. I want in the headline or subject to have a registration number such as 'Registration No 221' , then the next user who gonna fill the form and the system sent it to us, will receive an email at his side stating that 'Your registration No is 222. Please wait for us to call you'. Meanwhile in our email, I want an email stating that 'New Registration Available: Registration No 222'. This is an automated email sent by the system.</p>

<p>I want to have fully control on how the registration number start. So I can change it to start at number 500, then reset it to another number such as 356 or something else.</p>

<p>I know a bit PHP but not too much. Is there any guide here how can I create this features? Thanks in advance.</p>
