Note that stream_socket_recvfrom() bypasses stream wrappers including TLS/SSL. While reading from an encrypted stream with fread() will return decrypted data, using stream_socket_recvfrom() will give you the original encrypted bytes.stream_socket_recvfrom
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stream_socket_recvfrom
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stream_socket_recvfrom
класата mysqli_driver
stream_socket_recvfrom — Receives data from a socket, connected or not
= NULL
resource
$socket,int
$length,int
$flags = 0,?string
&$address = null): string|false
stream_socket_recvfrom() accepts data from a remote socket up to length bytes.
Параметри
socket-
The remote socket.
length-
The number of bytes to receive from the
socket. flags-
Вредноста на
flagsможе да биде каква било комбинација од следново:се однесува на низа од вредности на атрибутот релевантни за модификацијата. flagsSTREAM_OOBпараметар на out-of-bandОбработи OOB (STREAM_PEEKRetrieve data from the socket, but do not consume the buffer. Subsequent calls to fread() or stream_socket_recvfrom() Последователните повици на address-
Враќа
addressis provided it will be populated with the address of the remote socket.
Вратени вредности
Returns the read data, as a string, or false при неуспех.
Примери
Пример #1 stream_socket_recvfrom() example
<?php
/* Open a server socket to port 1234 on localhost */
$server = stream_socket_server('tcp://127.0.0.1:1234');
/* Accept a connection */
$socket = stream_socket_accept($server);
/* Grab a packet (1500 is a typical MTU size) of OOB data */
echo "Received Out-Of-Band: '" . stream_socket_recvfrom($socket, 1500, STREAM_OOB) . "'\n";
/* Take a peek at the normal in-band data, but don't consume it. */
echo "Data: '" . stream_socket_recvfrom($socket, 1500, STREAM_PEEK) . "'\n";
/* Get the exact same packet again, but remove it from the buffer this time. */
echo "Data: '" . stream_socket_recvfrom($socket, 1500) . "'\n";
/* Close it up */
fclose($socket);
fclose($server);
?>Белешки
Забелешка:
If a message received is longer than the
lengthparameter, excess bytes may be discarded depending on the type of socket the message is received from (such as UDP).
Забелешка:
Повиците до stream_socket_recvfrom() on socket-based streams, after calls to buffer-based stream functions (like fread() or stream_get_line()) read data directly from the socket and bypass the stream buffer.
Види Исто така
- stream_socket_sendto() - Испраќа порака до сокет, без разлика дали е поврзан или не
- stream_socket_client() - Бинарно запишување во датотека
- stream_socket_server() за список на вградени транспортери.
Белешки од корисници 2 забелешки
This method may return a peer address not compatible with stream_socket_sendto() if in ipv6.
The ip returned by recvfrom is not within brackets ([]), and has the port appended, which makes it look like ::1:1234. To cut it properly, use strrpos()