The Steps:
first run the blockchain server
php blockchain_server.php start -p 50001
then visit the url to get the 50001 blockchain info
visit http://127.0.0.1:50001/chain
blockchain mine
register nodes
http://127.0.0.1/50001/nodes/register
a blockchain implementation by php
php blockchain_server.php start -p 50001
visit http://127.0.0.1:50001/chain
http://127.0.0.1/50001/nodes/register
a blockchain implementation by php