What is the mask for parsing this word?

Question

PHP

There is a tag Trying to get the word DECLINED like this
<OrderStatus>DECLINED<\/OrderStatus>

preg_match_all('#<OrderStatus>(.+?)<\/OrderStatus>#su', $html, $arr); // OrderStatus
  var_dump($arr);

Does not exceed ...

Answer 1

<OrderStatus>(.+?)<\\\/OrderStatus>
https://www.phpliveregex.com/p/vMV
The correct approach in such tasks is to use PHP functionality to work with the DOM tree