PHP - Source code of website

Get the source code from a given website

function getSourceCode ( $website )
{
	// The link to the website
	$code_lines = file ( 'http://webite.com' );

	// Loop through the code and build string
	foreach ( $code_lines as $line => $code ) 
		$lines .= "<strong>{$line}. </strong> " . htmlspecialchars( $code ) . "</ br>\n";
		
	return $lines;
}