Hi, Thanks for your reply
replacing .log with {.log,.leases} didnt work.
did the replace like this:
exec('openssl ts -verify -data /tmp/' . $log_type . '{.log,.leases} -in /tmp/' . $log_type . '.l*.der -token_in -CAfile /CA/cacert.pem -untrusted /CA/tsacert.pem', $result);