Str_replace无法正常工作

Question

I have a PHP snippet in DB that I fetch through query,After that I apply str_replace on it to replace a particular Area.

str_replace("****",$res->id,$my_file);

But it is not changing the string. I dont know how to debug the scenrio

Answer 1

You need to assign the returned string to your variable. None of PHP's *_replace functions modify the original string in-place.

$my_file = str_replace("****", $res->id, $my_file);