如何替换以“[id”开头，具有未知中间部分并以“]结尾”的字符串？

Question

I would like to replace strings that starts with "[id", has a middle part unknown and ends in "]" in a $text. I know how to replace strings that starts with "[id" and ends with "]" but I can't figure out how to include the unknown middle body part as a rule of replace.

Any ideas how to replace like this ?

Thanks.

Answer 1

The following will remove all occurences of [idsomething]. something will match all characters except for ].

$newText = preg_replace('#\[id[^\]]+\]#', '', $subject);

If you know that something is always a digit, you could use something like this:

$newText = preg_replace('#\[id\d+\]#', '', $subject);

For more information about regular expressions, see this website: http://www.regular-expressions.info/.