PHP Manual
Streams
Vordefinierte Konstanten

Vordefinierte Konstanten

Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.

Constant	Description
`STREAM_FILTER_READ`	Used with stream_filter_append() and stream_filter_prepend() to indicate that the specified filter should only be applied when reading
`STREAM_FILTER_WRITE`	Used with stream_filter_append() and stream_filter_prepend() to indicate that the specified filter should only be applied when writing
`STREAM_FILTER_ALL`	This constant is equivalent to `STREAM_FILTER_READ \| STREAM_FILTER_WRITE`
`PSFS_PASS_ON`	`Return Code` indicating that the userspace filter returned buckets in `$out`.
`PSFS_FEED_ME`	`Return Code` indicating that the userspace filter did not return buckets in `$out` (i.e. No data available).
`PSFS_ERR_FATAL`	`Return Code` indicating that the userspace filter encountered an unrecoverable error (i.e. Invalid data received).
`PSFS_FLAG_NORMAL`	Regular read/write.
`PSFS_FLAG_FLUSH_INC`	An incremental flush.
`PSFS_FLAG_FLUSH_CLOSE`	Final flush prior to closing.
`STREAM_USE_PATH`	`Flag` indicating if the `stream` used the include path.
`STREAM_REPORT_ERRORS`	`Flag` indicating if the `wrapper` is responsible for raising errors using trigger_error() during opening of the stream. If this flag is not set, you should not raise any errors.
`STREAM_CLIENT_ASYNC_CONNECT`	Open client socket asynchronously. This option must be used together with the `STREAM_CLIENT_CONNECT` flag. Used with stream_socket_client().
`STREAM_CLIENT_CONNECT`	Open client socket connection. Client sockets should always include this flag. Used with stream_socket_client().
`STREAM_CLIENT_PERSISTENT`	Client socket opened with stream_socket_client() should remain persistent between page loads.
`STREAM_SERVER_BIND`	Tells a stream created with stream_socket_server() to bind to the specified target. Server sockets should always include this flag.
`STREAM_SERVER_LISTEN`	Tells a stream created with stream_socket_server() and bound using the `STREAM_SERVER_BIND` flag to start listening on the socket. Connection-orientated transports (such as TCP) must use this flag, otherwise the server socket will not be enabled. Using this flag for connect-less transports (such as UDP) is an error.
`STREAM_NOTIFY_RESOLVE`	A remote address required for this stream has been resolved, or the resolution failed. See `severity` for an indication of which happened.
`STREAM_NOTIFY_CONNECT`	A connection with an external resource has been established.
`STREAM_NOTIFY_AUTH_REQUIRED`	Additional authorization is required to access the specified resource. Typical issued with `severity` level of `STREAM_NOTIFY_SEVERITY_ERR`.
`STREAM_NOTIFY_MIME_TYPE_IS`	The `mime-type` of resource has been identified, refer to `message` for a description of the discovered type.
`STREAM_NOTIFY_FILE_SIZE_IS`	The `size` of the resource has been discovered.
`STREAM_NOTIFY_REDIRECTED`	The external resource has redirected the stream to an alternate location. Refer to `message`.
`STREAM_NOTIFY_PROGRESS`	Indicates current progress of the stream transfer in `bytes_transferred` and possibly `bytes_max` as well.
`STREAM_NOTIFY_COMPLETED`	There is no more data available on the stream.
`STREAM_NOTIFY_FAILURE`	A generic error occurred on the stream, consult `message` and `message_code` for details.
`STREAM_NOTIFY_AUTH_RESULT`	Authorization has been completed (with or without success).
`STREAM_NOTIFY_SEVERITY_INFO`	Normal, non-error related, notification.
`STREAM_NOTIFY_SEVERITY_WARN`	Non critical error condition. Processing may continue.
`STREAM_NOTIFY_SEVERITY_ERR`	A critical error occurred. Processing cannot continue.
`STREAM_IPPROTO_ICMP` +	Provides a ICMP socket.
`STREAM_IPPROTO_IP` +	Provides a IP socket.
`STREAM_IPPROTO_RAW` +	Provides a RAW socket.
`STREAM_IPPROTO_TCP` +	Provides a TCP socket.
`STREAM_IPPROTO_UDP` +	Provides a UDP socket.
`STREAM_PF_INET` +	Internet Protocol Version 4 (IPv4).
`STREAM_PF_INET6` +	Internet Protocol Version 6 (IPv6).
`STREAM_PF_UNIX` +	Unix system internal protocols.
`STREAM_SOCK_DGRAM` +	Provides datagrams, which are connectionless messages (UDP, for example).
`STREAM_SOCK_RAW` +	Provides a raw socket, which provides access to internal network protocols and interfaces. Usually this type of socket is just available to the root user.
`STREAM_SOCK_RDM` +	Provides a RDM (Reliably-delivered messages) socket.
`STREAM_SOCK_SEQPACKET` +	Provides a sequenced packet stream socket.
`STREAM_SOCK_STREAM` +	Provides sequenced, two-way byte streams with a transmission mechanism for out-of-band data (TCP, for example).
`STREAM_SHUT_RD`	Used with stream_socket_shutdown() to disable further receptions.
`STREAM_SHUT_WR`	Used with stream_socket_shutdown() to disable further transmissions.
`STREAM_SHUT_RDWR`	Used with stream_socket_shutdown() to disable further receptions and transmissions.
`STREAM_CAST_FOR_SELECT`	Stream casting, for when stream_select() is calling stream_cast().
`STREAM_CAST_AS_STREAM`	Stream casting, when stream_cast() is called otherwise (see above).
`STREAM_META_TOUCH`	Used with stream_metadata(), to specify touch() call.
`STREAM_META_OWNER`	Used with stream_metadata(), to specify chown() call.
`STREAM_META_OWNER_NAME`	Used with stream_metadata(), to specify chown() call.
`STREAM_META_GROUP`	Used with stream_metadata(), to specify chgrp() call.
`STREAM_META_GROUP_NAME`	Used with stream_metadata(), to specify chgrp() call.
`STREAM_META_ACCESS`	Used with stream_metadata(), to specify chmod() call.
`STREAM_BUFFER_NONE`	No buffering.
`STREAM_BUFFER_LINE`	Line buffering.
`STREAM_BUFFER_FULL`	Full buffering.

Hinweis: The constants marked with + are meant to be used with stream_socket_pair(). Please note that some of these constants might not be available in your system.