How to get specific (unique code) word from string on php? [closed]

I have text string like :

[CLOSED][#SD_1623834126_001] lorem ipsum ?

and question is, how I get unique code/my ticket number #SD_xxxx ?

Please help me guys, thanks..

Answer

You could use preg_match_all with the regex pattern #w+ to capture all hashtag matches in your input:

$input = "[CLOSED][#SD_1623834126_001] lorem ipsum ?";
preg_match_all("/#w+/", $input, $matches);
print_r($matches[0][0]);  // #SD_1623834126_001