You can use this php codes to connect kevacoin rpc. You need a php server, kevacoin wallet and setup few files. You can change your own datas like user/password/port.
rpcuser=galaxy
rpcpassword=frontier
rpcport=9992
server=1
addressindex=1
txindex=1
rpcallowip=127.0.0.1
whitelist=127.0.0.1
$grpcuser='galaxy';
$grpcpass='frontier';
$grpcportk='9992';