Copy text from remote url using php code

<?php
$regex = '/]*>(.*<\/body>/smi';
 
/*END config, BEGIN html*/
 
$data = file_get_contents($siteName) or die('Cannot read ' . $siteName);
 
preg_match($regex, $data, $cleanData);
 
if(!empty($cleanData))
 
$data = $cleanData[1];
 
echo $data;
 
?>
 
<!-- HTML Footer Data here... -->