如何用正则解析这样的字符串？

形如：

$str='
hhhhhhhhhhhhh
'

$str='
jjjjjjjjjjjjjjjj
'

想要得到p或者h1之间的内容,怎么写？

回复内容：

形如：

$str='
hhhhhhhhhhhhh
'

$str='
jjjjjjjjjjjjjjjj
'

想要得到p或者h1之间的内容,怎么写？

([\s\S]+?)<\/\1>/';

$str='
hhhhhhhhhhhhh
';
preg_match($reg, $str, $result);
var_dump($result);

$str='
jjjjjjjjjjjjjjjj
';
preg_match($reg, $str, $result);
var_dump($result);

运行结果:

array(3) {
  [0]=>
  string(20) "
hhhhhhhhhhhhh
"
  [1]=>
  string(1) "p"
  [2]=>
  string(13) "hhhhhhhhhhhhh"
}
array(3) {
  [0]=>
  string(25) "
jjjjjjjjjjjjjjjj
"
  [1]=>
  string(2) "h1"
  [2]=>
  string(16) "jjjjjjjjjjjjjjjj"
}

$reg='#<([\w]+)>(.+?)<\/\1>#s'