After the content in the form is uploaded using post, how can I automatically convert the content into h1 and p on the php interface?

One title input, one textarea input, and click submit on this page. how can this problem be received on the php interface? Then it is automatically converted to h1 and p, and the line feed in textarea should be retained. This is the content of the html submission page I wrote. & Quot; Title body value phpform automatic post Upload

One title input, one textarea input, and click submit on this page. how can this problem be received on the php interface? Then it is automatically converted to h1 and p, and the line feed in textarea should be retained. This is the content of the html submission page I wrote.

 

  

   
Title
Body