(?:～) パターンのグループ
例）A(?:AB|CD) → AAB、ACDにマッチ
正規表現サンプル集
The better solution:
location ~ ^/phpmyadmin(?:/(.*))?$ { alias /home/phpmyadmin/$1; }Ensure that server has permissions to /home/phpmyadmin first.
It's all about regular expressions.
First of all, the ^ char means that you want to match from beginning of string and not somewhere in the middle. The $ at the end means matching to the end of the string.
The (?:) means non-capturing group - we don't want it in the capturing results, but we want to simple group some chars. We group it like this, because we want the / char to be a nonsignificant part of the child path, and not a significant part of the parent path.
How can I create a location in nginx that works with AND without a trailing slash? - Server Fault
