How to display PHP & HTML source code on a page?

Question

How would one go about showing PHP code on user end. Sort of like w3School does?

Having lets say a grey area div, and then showing the code in there without activati

Answer 1

You can use this template........

######################################################################
echo "<h2><br>Source Code of ".basename((string)__FILE__) . "</h2><hr>";
show_source(__FILE__);
echo "<hr>";
echo "<h2>Output of ".basename((string)__FILE__) . "<hr></h2>";
#######################################################################

It will show the source code and output following.

Answer 2

use the header function of php, this will rea

<?php
  header("content-type: text/plain");
?>