PhpHTML does not need to submit a new form, phphphtml submits a form _ PHP Tutorial

PhpHTML does not need to submit a new form, and phphtml submits the form. PhpHTML does not need to submit new forms. phphtml usually uses ajax to submit new forms. Some time ago I followed the boss to learn about another type of no-refreshing new submit table: php HTML no-refreshing new submit form, phphtml submit form

We usually use ajax to implement the process of refreshing new forms. Some time ago, I learned from the boss that another method of refreshing new forms is implemented using the iframe framework. Now let's sort it out and share it with you.
First:
Html page

  
   No refreshing form submission        
   

PHP page: form. php

<? Php // non-empty verification if (empty ($ _ POST ['uname']) | empty ($ _ POST ['pwd']) {echo'