Help with regular expression matching

Search for the regular expression match. can I help you with "about. php? If id222is used, replace it with about_222.html. thank you. ------ Solution -------------------- just write one. PHPcode $ strabout. php ?; About_222.html $ strpreg_replace ([a-zd _ regular expression matching)
About. php? Id = 222 replace the regular expression with about_222.html. thank you.

------ Solution --------------------
Just write one.

PHP code

$ Str = 'about. php? Id = 222 '; // about_222.html $ str = preg_replace ('/([a-z \ d \ _] + )\.. * id = ([\ d] +) $/', "invalid variable 2.html", $ str); echo $ str;