匹配html格式的正则！

$str = 'afdasdfdsa


  
1


  
2


asdfasdfasd


  
3


  
4


fdsgsdfg';



preg_match_all('/]*>.*<\/ul>/isU', $str, $matches);

print_r($matches[0]);



?>

$str = '


  
1


  
2






  
3






  
4


  
5


  
6


';

preg_match_all('/.*?<\/ul>/s', $str, $matches);

var_dump($matches);