预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

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.

注意: 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.

注意: The STREAM_META_* constants are meant to be used with stream_metadata().

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User Contributed Notes 1 note

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Sbastien ¶

25 days ago


All STREAM_ AND PSFS_ constants values :

PSFS_ERR_FATAL => 0
PSFS_FEED_ME => 1
PSFS_FLAG_FLUSH_CLOSE => 2
PSFS_FLAG_FLUSH_INC => 1
PSFS_FLAG_NORMAL => 0
PSFS_PASS_ON => 2
STREAM_BUFFER_FULL => 2
STREAM_BUFFER_LINE => 1
STREAM_BUFFER_NONE => 0
STREAM_CAST_AS_STREAM => 0
STREAM_CAST_FOR_SELECT => 3
STREAM_CLIENT_ASYNC_CONNECT => 2
STREAM_CLIENT_CONNECT => 4
STREAM_CLIENT_PERSISTENT => 1
STREAM_CRYPTO_METHOD_ANY_CLIENT => 127
STREAM_CRYPTO_METHOD_ANY_SERVER => 126
STREAM_CRYPTO_METHOD_SSLv23_CLIENT => 57
STREAM_CRYPTO_METHOD_SSLv23_SERVER => 120
STREAM_CRYPTO_METHOD_SSLv2_CLIENT => 3
STREAM_CRYPTO_METHOD_SSLv2_SERVER => 2
STREAM_CRYPTO_METHOD_SSLv3_CLIENT => 5
STREAM_CRYPTO_METHOD_SSLv3_SERVER => 4
STREAM_CRYPTO_METHOD_TLS_CLIENT => 121
STREAM_CRYPTO_METHOD_TLS_SERVER => 120
STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT => 9
STREAM_CRYPTO_METHOD_TLSv1_0_SERVER => 8
STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT => 17
STREAM_CRYPTO_METHOD_TLSv1_1_SERVER => 16
STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT => 33
STREAM_CRYPTO_METHOD_TLSv1_2_SERVER => 32
STREAM_CRYPTO_METHOD_TLSv1_3_CLIENT => 65
STREAM_CRYPTO_METHOD_TLSv1_3_SERVER => 64
STREAM_CRYPTO_PROTO_SSLv3 => 4
STREAM_CRYPTO_PROTO_TLSv1_0 => 8
STREAM_CRYPTO_PROTO_TLSv1_1 => 16
STREAM_CRYPTO_PROTO_TLSv1_2 => 32
STREAM_CRYPTO_PROTO_TLSv1_3 => 64
STREAM_FILTER_ALL => 3
STREAM_FILTER_READ => 1
STREAM_FILTER_WRITE => 2
STREAM_IGNORE_URL => 2
STREAM_IPPROTO_ICMP => 1
STREAM_IPPROTO_IP => 0
STREAM_IPPROTO_RAW => 255
STREAM_IPPROTO_TCP => 6
STREAM_IPPROTO_UDP => 17
STREAM_IS_URL => 1
STREAM_META_ACCESS => 6
STREAM_META_GROUP => 5
STREAM_META_GROUP_NAME => 4
STREAM_META_OWNER => 3
STREAM_META_OWNER_NAME => 2
STREAM_META_TOUCH => 1
STREAM_MKDIR_RECURSIVE => 1
STREAM_MUST_SEEK => 16
STREAM_NOTIFY_AUTH_REQUIRED => 3
STREAM_NOTIFY_AUTH_RESULT => 10
STREAM_NOTIFY_COMPLETED => 8
STREAM_NOTIFY_CONNECT => 2
STREAM_NOTIFY_FAILURE => 9
STREAM_NOTIFY_FILE_SIZE_IS => 5
STREAM_NOTIFY_MIME_TYPE_IS => 4
STREAM_NOTIFY_PROGRESS => 7
STREAM_NOTIFY_REDIRECTED => 6
STREAM_NOTIFY_RESOLVE => 1
STREAM_NOTIFY_SEVERITY_ERR => 2
STREAM_NOTIFY_SEVERITY_INFO => 0
STREAM_NOTIFY_SEVERITY_WARN => 1
STREAM_OOB => 1
STREAM_OPTION_BLOCKING => 1
STREAM_OPTION_READ_BUFFER => 2
STREAM_OPTION_READ_TIMEOUT => 4
STREAM_OPTION_WRITE_BUFFER => 3
STREAM_PEEK => 2
STREAM_PF_INET => 2
STREAM_PF_INET6 => 23
STREAM_PF_UNIX => 1
STREAM_REPORT_ERRORS => 8
STREAM_SERVER_BIND => 4
STREAM_SERVER_LISTEN => 8
STREAM_SHUT_RD => 0
STREAM_SHUT_RDWR => 2
STREAM_SHUT_WR => 1
STREAM_SOCK_DGRAM => 2
STREAM_SOCK_RAW => 3
STREAM_SOCK_RDM => 4
STREAM_SOCK_SEQPACKET => 5
STREAM_SOCK_STREAM => 1
STREAM_URL_STAT_LINK => 1
STREAM_URL_STAT_QUIET => 2
STREAM_USE_PATH => 1

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官方地址：https://www.php.net/manual/en/stream.constants.php

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预定义常量

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