定義済み定数
 
以下の定数が定義されています。
この関数の拡張モジュールが PHP 組み込みでコンパイルされているか、
実行時に動的にロードされている場合のみ使用可能です。
 
  - 
   
    AF_UNIX 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    AF_INET 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    AF_INET6 
    (integer)
   
   
 - 
    
     IPv6 サポートつきでコンパイルした場合にのみ使用可能です。
    
   
 
  
  - 
   
    SOCK_STREAM 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCK_DGRAM 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCK_RAW 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCK_SEQPACKET 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCK_RDM 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    MSG_OOB 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    MSG_WAITALL 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    MSG_PEEK 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    MSG_DONTROUTE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    MSG_EOR 
    (integer)
   
   
 - 
    
     Windows プラットフォームでは使用できません。
    
   
 
  
  - 
   
    MSG_EOF 
    (integer)
   
   
 - 
    
     Windows プラットフォームでは使用できません。
    
   
 
  
  - 
   
    SO_DEBUG 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_REUSEADDR 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_KEEPALIVE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_DONTROUTE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_LINGER 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_BROADCAST 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_OOBINLINE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_SNDBUF 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_RCVBUF 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_SNDLOWAT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_RCVLOWAT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_SNDTIMEO 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_RCVTIMEO 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_TYPE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SO_ERROR 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    TCP_NODELAY 
    (integer)
   
   
 - 
    
     Nagle TCP アルゴリズムを無効にするために使用します。
     PHP 5.2.7 で追加されました。
    
   
 
  
  - 
   
    SOL_SOCKET 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    PHP_NORMAL_READ 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    PHP_BINARY_READ 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOL_TCP 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOL_UDP 
    (integer)
   
   
 - 
    
     
    
   
 
  
 
 
  以下の定数は Windows でのみ定義されています。
 
 
  - 
   
    SOCKET_EINTR 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EBADF 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EACCES 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EFAULT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EINVAL 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EMFILE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EWOULDBLOCK 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EINPROGRESS 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EALREADY 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENOTSOCK 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EDESTADDRREQ 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EMSGSIZE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EPROTOTYPE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENOPROTOOPT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EPROTONOSUPPORT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ESOCKTNOSUPPORT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EOPNOTSUPP 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EPFNOSUPPORT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EAFNOSUPPORT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EADDRINUSE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EADDRNOTAVAIL 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENETDOWN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENETUNREACH 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENETRESET 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ECONNABORTED 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ECONNRESET 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENOBUFS 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EISCONN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENOTCONN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ESHUTDOWN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ETOOMYREFS 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ETIMEDOUT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ECONNREFUSED 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ELOOP 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENAMETOOLONG 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EHOSTDOWN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EHOSTUNREACH 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ENOTEMPTY 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EPROCLIM 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EUSERS 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EDUOT 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_ESTALE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EREMOTE 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_EDISCON 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_SYSNOTREADY 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_VERNOTSUPPORTED 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_NOTINITIALISED 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_HOST_NOT_FOUND 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_TRY_AGAIN 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_NO_RECOVERY 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_NO_DATA 
    (integer)
   
   
 - 
    
     
    
   
 
  
  - 
   
    SOCKET_NO_ADDRESS 
    (integer)
   
   
 - 
    
     
    
   
 
  
 
 
  以下の定数は UNIX ライクなプラットフォームでのみ使用可能です。
  各定数は、そのプラットフォーム上で同等のものが定義されている場合にのみ定義されています。
 
 
  - 
   
    SOCKET_EPERM 
    (integer)
   
   
 - 
    
     Operation not permitted.
    
   
 
  
  - 
   
    SOCKET_ENOENT 
    (integer)
   
   
 - 
    
     No such file or directory.
    
   
 
  
  - 
   
    SOCKET_EINTR 
    (integer)
   
   
 - 
    
     Interrupted system call.
    
   
 
  
  - 
   
    SOCKET_EIO 
    (integer)
   
   
 - 
    
     I/O error.
    
   
 
  
  - 
   
    SOCKET_ENXIO 
    (integer)
   
   
 - 
    
     No such device or address.
    
   
 
  
  - 
   
    SOCKET_E2BIG 
    (integer)
   
   
 - 
    
     Arg list too long.
    
   
 
  
  - 
   
    SOCKET_EBADF 
    (integer)
   
   
 - 
    
     Bad file number.
    
   
 
  
  - 
   
    SOCKET_EAGAIN 
    (integer)
   
   
 - 
    
     Try again.
    
   
 
  
  - 
   
    SOCKET_ENOMEM 
    (integer)
   
   
 - 
    
     Out of memory.
    
   
 
  
  - 
   
    SOCKET_EACCES 
    (integer)
   
   
 - 
    
     Permission denied.
    
   
 
  
  - 
   
    SOCKET_EFAULT 
    (integer)
   
   
 - 
    
     Bad address.
    
   
 
  
  - 
   
    SOCKET_ENOTBLK 
    (integer)
   
   
 - 
    
     Block device required.
    
   
 
  
  - 
   
    SOCKET_EBUSY 
    (integer)
   
   
 - 
    
     Device or resource busy.
    
   
 
  
  - 
   
    SOCKET_EEXIST 
    (integer)
   
   
 - 
    
     File exists.
    
   
 
  
  - 
   
    SOCKET_EXDEV 
    (integer)
   
   
 - 
    
     Cross-device link.
    
   
 
  
  - 
   
    SOCKET_ENODEV 
    (integer)
   
   
 - 
    
     No such device.
    
   
 
  
  - 
   
    SOCKET_ENOTDIR 
    (integer)
   
   
 - 
    
     Not a directory.
    
   
 
  
  - 
   
    SOCKET_EISDIR 
    (integer)
   
   
 - 
    
     Is a directory.
    
   
 
  
  - 
   
    SOCKET_EINVAL 
    (integer)
   
   
 - 
    
     Invalid argument.
    
   
 
  
  - 
   
    SOCKET_ENFILE 
    (integer)
   
   
 - 
    
     File table overflow.
    
   
 
  
  - 
   
    SOCKET_EMFILE 
    (integer)
   
   
 - 
    
     Too many open files.
    
   
 
  
  - 
   
    SOCKET_ENOTTY 
    (integer)
   
   
 - 
    
     Not a typewriter.
    
   
 
  
  - 
   
    SOCKET_ENOSPC 
    (integer)
   
   
 - 
    
     No space left on device.
    
   
 
  
  - 
   
    SOCKET_ESPIPE 
    (integer)
   
   
 - 
    
     Illegal seek.
    
   
 
  
  - 
   
    SOCKET_EROFS 
    (integer)
   
   
 - 
    
     Read-only file system.
    
   
 
  
  - 
   
    SOCKET_EMLINK 
    (integer)
   
   
 - 
    
     Too many links.
    
   
 
  
  - 
   
    SOCKET_EPIPE 
    (integer)
   
   
 - 
    
     Broken pipe.
    
   
 
  
  - 
   
    SOCKET_ENAMETOOLONG 
    (integer)
   
   
 - 
    
     File name too long.
    
   
 
  
  - 
   
    SOCKET_ENOLCK 
    (integer)
   
   
 - 
    
     No record locks available.
    
   
 
  
  - 
   
    SOCKET_ENOSYS 
    (integer)
   
   
 - 
    
     Function not implemented.
    
   
 
  
  - 
   
    SOCKET_ENOTEMPTY 
    (integer)
   
   
 - 
    
     Directory not empty.
    
   
 
  
  - 
   
    SOCKET_ELOOP 
    (integer)
   
   
 - 
    
     Too many symbolic links encountered.
    
   
 
  
  - 
   
    SOCKET_EWOULDBLOCK 
    (integer)
   
   
 - 
    
     Operation would block.
    
   
 
  
  - 
   
    SOCKET_ENOMSG 
    (integer)
   
   
 - 
    
     No message of desired type.
    
   
 
  
  - 
   
    SOCKET_EIDRM 
    (integer)
   
   
 - 
    
     Identifier removed.
    
   
 
  
  - 
   
    SOCKET_ECHRNG 
    (integer)
   
   
 - 
    
     Channel number out of range.
    
   
 
  
  - 
   
    SOCKET_EL2NSYNC 
    (integer)
   
   
 - 
    
     Level 2 not synchronized.
    
   
 
  
  - 
   
    SOCKET_EL3HLT 
    (integer)
   
   
 - 
    
     Level 3 halted.
    
   
 
  
  - 
   
    SOCKET_EL3RST 
    (integer)
   
   
 - 
    
     Level 3 reset.
    
   
 
  
  - 
   
    SOCKET_ELNRNG 
    (integer)
   
   
 - 
    
     Link number out of range.
    
   
 
  
  - 
   
    SOCKET_EUNATCH 
    (integer)
   
   
 - 
    
     Protocol driver not attached.
    
   
 
  
  - 
   
    SOCKET_ENOCSI 
    (integer)
   
   
 - 
    
     No CSI structure available.
    
   
 
  
  - 
   
    SOCKET_EL2HLT 
    (integer)
   
   
 - 
    
     Level 2 halted.
    
   
 
  
  - 
   
    SOCKET_EBADE 
    (integer)
   
   
 - 
    
     Invalid exchange.
    
   
 
  
  - 
   
    SOCKET_EBADR 
    (integer)
   
   
 - 
    
     Invalid request descriptor.
    
   
 
  
  - 
   
    SOCKET_EXFULL 
    (integer)
   
   
 - 
    
     Exchange full.
    
   
 
  
  - 
   
    SOCKET_ENOANO 
    (integer)
   
   
 - 
    
     No anode.
    
   
 
  
  - 
   
    SOCKET_EBADRQC 
    (integer)
   
   
 - 
    
     Invalid request code.
    
   
 
  
  - 
   
    SOCKET_EBADSLT 
    (integer)
   
   
 - 
    
     Invalid slot.
    
   
 
  
  - 
   
    SOCKET_ENOSTR 
    (integer)
   
   
 - 
    
     Device not a stream.
    
   
 
  
  - 
   
    SOCKET_ENODATA 
    (integer)
   
   
 - 
    
     No data available.
    
   
 
  
  - 
   
    SOCKET_ETIME 
    (integer)
   
   
 - 
    
     Timer expired.
    
   
 
  
  - 
   
    SOCKET_ENOSR 
    (integer)
   
   
 - 
    
     Out of streams resources.
    
   
 
  
  - 
   
    SOCKET_ENONET 
    (integer)
   
   
 - 
    
     Machine is not on the network.
    
   
 
  
  - 
   
    SOCKET_EREMOTE 
    (integer)
   
   
 - 
    
     Object is remote.
    
   
 
  
  - 
   
    SOCKET_ENOLINK 
    (integer)
   
   
 - 
    
     Link has been severed.
    
   
 
  
  - 
   
    SOCKET_EADV 
    (integer)
   
   
 - 
    
     Advertise error.
    
   
 
  
  - 
   
    SOCKET_ESRMNT 
    (integer)
   
   
 - 
    
     Srmount error.
    
   
 
  
  - 
   
    SOCKET_ECOMM 
    (integer)
   
   
 - 
    
     Communication error on send.
    
   
 
  
  - 
   
    SOCKET_EPROTO 
    (integer)
   
   
 - 
    
     Protocol error.
    
   
 
  
  - 
   
    SOCKET_EMULTIHOP 
    (integer)
   
   
 - 
    
     Multihop attempted.
    
   
 
  
  - 
   
    SOCKET_EBADMSG 
    (integer)
   
   
 - 
    
     Not a data message.
    
   
 
  
  - 
   
    SOCKET_ENOTUNIQ 
    (integer)
   
   
 - 
    
     Name not unique on network.
    
   
 
  
  - 
   
    SOCKET_EBADFD 
    (integer)
   
   
 - 
    
     File descriptor in bad state.
    
   
 
  
  - 
   
    SOCKET_EREMCHG 
    (integer)
   
   
 - 
    
     Remote address changed.
    
   
 
  
  - 
   
    SOCKET_ERESTART 
    (integer)
   
   
 - 
    
     Interrupted system call should be restarted.
    
   
 
  
  - 
   
    SOCKET_ESTRPIPE 
    (integer)
   
   
 - 
    
     Streams pipe error.
    
   
 
  
  - 
   
    SOCKET_EUSERS 
    (integer)
   
   
 - 
    
     Too many users.
    
   
 
  
  - 
   
    SOCKET_ENOTSOCK 
    (integer)
   
   
 - 
    
     Socket operation on non-socket.
    
   
 
  
  - 
   
    SOCKET_EDESTADDRREQ 
    (integer)
   
   
 - 
    
     Destination address required.
    
   
 
  
  - 
   
    SOCKET_EMSGSIZE 
    (integer)
   
   
 - 
    
     Message too long.
    
   
 
  
  - 
   
    SOCKET_EPROTOTYPE 
    (integer)
   
   
 - 
    
     Protocol wrong type for socket.
    
   
 
  
  - 
   
    SOCKET_EPROTOOPT 
    (integer)
   
   
 - 
    
     Protocol not available.
    
   
 
  
  - 
   
    SOCKET_EPROTONOSUPPORT 
    (integer)
   
   
 - 
    
     Protocol not supported.
    
   
 
  
  - 
   
    SOCKET_ESOCKTNOSUPPORT 
    (integer)
   
   
 - 
    
     Socket type not supported.
    
   
 
  
  - 
   
    SOCKET_EOPNOTSUPP 
    (integer)
   
   
 - 
    
     Operation not supported on transport endpoint.
    
   
 
  
  - 
   
    SOCKET_EPFNOSUPPORT 
    (integer)
   
   
 - 
    
     Protocol family not supported.
    
   
 
  
  - 
   
    SOCKET_EAFNOSUPPORT 
    (integer)
   
   
 - 
    
     Address family not supported by protocol.
    
   
 
  
  - 
   
    SOCKET_ADDRINUSE 
    (integer)
   
   
 - 
    
     Address already in use.
    
   
 
  
  - 
   
    SOCKET_EADDRNOTAVAIL 
    (integer)
   
   
 - 
    
     Cannot assign requested address.
    
   
 
  
  - 
   
    SOCKET_ENETDOWN 
    (integer)
   
   
 - 
    
     Network is down.
    
   
 
  
  - 
   
    SOCKET_ENETUNREACH 
    (integer)
   
   
 - 
    
     Network is unreachable.
    
   
 
  
  - 
   
    SOCKET_ENETRESET 
    (integer)
   
   
 - 
    
     Network dropped connection because of reset.
    
   
 
  
  - 
   
    SOCKET_ECONNABORTED 
    (integer)
   
   
 - 
    
     Software caused connection abort.
    
   
 
  
  - 
   
    SOCKET_ECONNRESET 
    (integer)
   
   
 - 
    
     Connection reset by peer.
    
   
 
  
  - 
   
    SOCKET_ENOBUFS 
    (integer)
   
   
 - 
    
     No buffer space available.
    
   
 
  
  - 
   
    SOCKET_EISCONN 
    (integer)
   
   
 - 
    
     Transport endpoint is already connected.
    
   
 
  
  - 
   
    SOCKET_ENOTCONN 
    (integer)
   
   
 - 
    
     Transport endpoint is not connected.
    
   
 
  
  - 
   
    SOCKET_ESHUTDOWN 
    (integer)
   
   
 - 
    
     Cannot send after transport endpoint shutdown.
    
   
 
  
  - 
   
    SOCKET_ETOOMANYREFS 
    (integer)
   
   
 - 
    
     Too many references: cannot splice.
    
   
 
  
  - 
   
    SOCKET_ETIMEDOUT 
    (integer)
   
   
 - 
    
     Connection timed out.
    
   
 
  
  - 
   
    SOCKET_ECONNREFUSED 
    (integer)
   
   
 - 
    
     Connection refused.
    
   
 
  
  - 
   
    SOCKET_EHOSTDOWN 
    (integer)
   
   
 - 
    
     Host is down.
    
   
 
  
  - 
   
    SOCKET_EHOSTUNREACH 
    (integer)
   
   
 - 
    
     No route to host.
    
   
 
  
  - 
   
    SOCKET_EALREADY 
    (integer)
   
   
 - 
    
     Operation already in progress.
    
   
 
  
  - 
   
    SOCKET_EINPROGRESS 
    (integer)
   
   
 - 
    
     Operation now in progress.
    
   
 
  
  - 
   
    SOCKET_EISNAM 
    (integer)
   
   
 - 
    
     Is a named type file.
    
   
 
  
  - 
   
    SOCKET_EREMOTEIO 
    (integer)
   
   
 - 
    
     Remote I/O error.
    
   
 
  
  - 
   
    SOCKET_EDQUOT 
    (integer)
   
   
 - 
    
     Quota exceeded.
    
   
 
  
  - 
   
    SOCKET_ENOMEDIUM 
    (integer)
   
   
 - 
    
     No medium found.
    
   
 
  
  - 
   
    SOCKET_EMEDIUMTYPE 
    (integer)
   
   
 - 
    
     Wrong medium type.