crispy-computing-machine/self-modifying.php

## self-modifying.php
<?php
// Define the code to modify
$code = <<<EOT
<?php
echo "Hello, world!";
?>
EOT;

// Modify the code
$code = str_replace('world', 'PHP', $code);

// Save the modified code to a file
$file = fopen(__FILE__, 'w');
fwrite($file, $code);
fclose($file);

// Execute the modified code
include __FILE__;
?>
	<?php
	// Define the code to modify
	$code = <<<EOT
	<?php
	echo "Hello, world!";
	?>
	EOT;

	// Modify the code
	$code = str_replace('world', 'PHP', $code);

	// Save the modified code to a file
	$file = fopen(__FILE__, 'w');
	fwrite($file, $code);
	fclose($file);

	// Execute the modified code
	include __FILE__;
	?>