html form output php code example

Example 1: how to request user input in php

<?php
echo "What do you want to input? ";
$input = rtrim(fgets(STDIN));
echo "I got it:\n" . $input;

Example 2: how to form data to another file in php

$firstname = preg_replace( "#[^\w]#", "", $_POST['firstname'] );

$lastname = preg_replace( "#[^\w]#", "", $_POST['lastname'] );