Leer HTML con PHP

$lines = file('http://itunes.apple.com/es/genre/mobile-software-applications/id6015?mt=8');

// Loop through our array, show HTML source as HTML source; and line numbers too.

foreach ($lines as $line_num => $line) {

echo "Line #{$line_num} : " . htmlspecialchars($line) . "
\n";

}