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PHP. Руководство по PHP. 2005

stream_socket_recvfrom

(PHP 5)stream_socket_recvfrom -- Receives data from a socket, connected or not

Description

string stream_socket_recvfrom (resource socket, int length [, int flags [, string &address]])

The function stream_socket_recvfrom() accepts data from a remote socket up to length bytes. If address is provided it will be populated with the address of the remote socket.

The value of flags can be any combination of the following:

Таблица 1. possible values for flags
STREAM_OOB Process OOB (out-of-band) data.
STREAM_PEEK Retrieve data from the socket, but do not consume the buffer. Subsequent calls to fread() or stream_socket_recvfrom() will see the same data.

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($socket, 1500, STREAM_OOB) . "'\n"; /* Take a peek at the normal in-band data, but don't comsume it. */ echo "Data: '" . stream_socket_recvfrom($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);
?>

Замечание: If a message received is longer than the length parameter, excess bytes may be discarded depending on the type of socket the message is received from (such as UDP).

Пред. Начало След.

stream_socket_pair

Уровень выше

stream_socket_sendto

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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STREAM_OOB	Process OOB (out-of-band) data.
STREAM_PEEK	Retrieve data from the socket, but do not consume the buffer. Subsequent calls to fread() or stream_socket_recvfrom() will see the same data.

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