The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
SWOOLE_BASE
     (int)
    SWOOLE_THREAD
     (int)
    SWOOLE_PROCESS
     (int)
    SWOOLE_IPC_UNSOCK
     (int)
    SWOOLE_IPC_MSGQUEUE
     (int)
    SWOOLE_IPC_PREEMPTIVE
     (int)
    SWOOLE_SOCK_TCP
     (int)
    SWOOLE_SOCK_TCP6
     (int)
    SWOOLE_SOCK_UDP
     (int)
    SWOOLE_SOCK_UDP6
     (int)
    SWOOLE_SOCK_UNIX_DGRAM
     (int)
    SWOOLE_SOCK_UNIX_STREAM
     (int)
    SWOOLE_TCP
     (int)
    SWOOLE_TCP6
     (int)
    SWOOLE_UDP
     (int)
    SWOOLE_UDP6
     (int)
    SWOOLE_UNIX_DGRAM
     (int)
    SWOOLE_UNIX_STREAM
     (int)
    SWOOLE_SOCK_SYNC
     (int)
    SWOOLE_SOCK_ASYNC
     (int)
    SWOOLE_SYNC
     (int)
    SWOOLE_ASYNC
     (int)
    SWOOLE_KEEP
     (int)
    SWOOLE_EVENT_READ
     (int)
    SWOOLE_EVENT_WRITE
     (int)
    SWOOLE_VERSION
     (string)
    SWOOLE_AIO_BASE
     (int)
    SWOOLE_AIO_LINUX
     (int)
    SWOOLE_FILELOCK
     (int)
    SWOOLE_MUTEX
     (int)
    SWOOLE_SEM
     (int)
    SWOOLE_RWLOCK
     (int)
    WEBSOCKET_OPCODE_TEXT
     (int)
    WEBSOCKET_OPCODE_BINARY
     (int)
    WEBSOCKET_OPCODE_PING
     (int)
    WEBSOCKET_STATUS_CONNECTION
     (int)
    WEBSOCKET_STATUS_HANDSHAKE
     (int)
    WEBSOCKET_STATUS_FRAME
     (int)
    WEBSOCKET_STATUS_ACTIVE
     (int)
    SWOOLE_FAST_PACK
     (int)
    SWOOLE_LOG_DEBUG
     (int)
    SWOOLE_LOG_TRACE
     (int)
    SWOOLE_LOG_INFO
     (int)
    SWOOLE_LOG_NOTICE
     (int)
    SWOOLE_LOG_WARNING
     (int)
    SWOOLE_LOG_ERROR
     (int)
    SWOOLE_LOG_NONE
     (int)