How to disable nested code in php?

Question

PHP

How to configure php.ini so that the nested script does not work?
So this script:
<?php
$echo = "<?php echo 'some text'; ?>";
echo $echo;
?>
should output "<?php echo 'some text'; ?>", not "some text".
The point was that the code nested in echo was executed because the script itself was not requested directly, but through another script that connected it. That is, in script 1 it was written <?php include('path/to/script2'); ?>.

Answer 1

should output "<?php echo 'some text'; ?>", not "some text".

Tell us how you got it.
I have two dozen versions of PHP on hand right now, from 5.1 to 5.6, all returning <?php echo 'some text'; ?> as they should.

Answer 2

How to configure php.ini so that the nested script does not work?

Delete PHP. Then the contents of the script will simply be displayed, as you want.

Answer 3

<?php
echo <<<EOT
&lt;?php echo 'some text'; ?&gt;
EOT;
?>