php删除特定字符之间的字符

Question

I know how to remove specific character within a string but not sure about the following:

e.g. string: Code [7845] [5589] [554] [4]

I need to remove all instances of [ and ] and everything in between them, then trim whitespace off so I end up with simply: Code

Is this possible?

Answer 1

try the following:

$str = trim(preg_replace('/\[\d+\]/', '', 'your_string_here'));

The first argument of the function is a regex. \d that you see matches a number, and the + following it says that you should match at least 1 number. Check here for more information on preg_replace. Check here for more information on Regex.