Is there a function to list all files containing a key?

Does qiniu have the function to list all files whose keys contain certain characters? If not, how can this problem be implemented? Does qiniu have the function to list all files whose keys contain certain characters? Implemented in php-sdk
If not, how can this problem be achieved?

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Does qiniu have the function to list all files whose keys contain certain characters? Implemented in php-sdk
If not, how can this problem be achieved?

Currently only the included prefix can be queried: http://developer.qiniu.com/docs/v6/api/reference/rs/list.html

Php sdk implementation here https://github.com/qiniu/php-sdk/blob/develop/qiniu/rsf.php