mirror of
https://github.com/sigmasternchen/php-doc-en
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removing the others git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@78562 c90b9560-bf6c-de11-be94-00142212c4b1
1223 lines
42 KiB
XML
1223 lines
42 KiB
XML
<!-- D O N O T E D I T T H I S F I L E ! ! !
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it is still here for historical reasons only
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(as translators may need to check old revision diffs)
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if you want to change things documented in this file
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you should now edit the files found under en/reference
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instead -->
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.38 $ -->
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<reference id="ref.sockets">
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<title>Socket functions</title>
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<titleabbrev>Sockets</titleabbrev>
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<partintro>
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&warn.experimental;
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<simpara>
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The socket extension implements a low-level interface to the
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socket communication functions, providing the possibility to act
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as a socket server as well as a client.
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</simpara>
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<para>
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The socket functions described here are part of an extension to
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PHP which must be enabled at compile time by giving the <option
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role="configure">--enable-sockets</option> option to
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<command>configure</command>.
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</para>
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<para>
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For a more generic client-side socket interface, see
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<function>fsockopen</function> and
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<function>pfsockopen</function>.
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</para>
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<para>
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When using these functions, it is important to remember that while
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many of them have identical names to their C counterparts, they
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often have different declarations. Please be sure to read the
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descriptions to avoid confusion.
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</para>
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<para>
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That said, those unfamiliar with socket programming can still find
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a lot of useful material in the appropriate Unix man pages, and
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there is a great deal of tutorial information on socket
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programming in C on the web, much of which can be applied, with
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slight modifications, to socket programming in PHP.
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</para>
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<para>
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<example>
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<title>Socket example: Simple TCP/IP server</title>
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<para>
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This example shows a simple talkback server. Change the
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<varname>address</varname> and <varname>port</varname> variables
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to suit your setup and execute. You may then connect to the
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server with a command similar to: <command>telnet 192.168.1.53
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10000</command> (where the address and port match your
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setup). Anything you type will then be output on the server
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side, and echoed back to you. To disconnect, enter 'quit'.
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</para>
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<programlisting role="php">
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<![CDATA[
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#!/usr/local/bin/php -q
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<?php
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error_reporting (E_ALL);
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/* Allow the script to hang around waiting for connections. */
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set_time_limit (0);
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/* Turn on implicit output flushing so we see what we're getting
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* as it comes in. */
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ob_implicit_flush ();
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$address = '192.168.1.53';
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$port = 10000;
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if (($sock = socket_create (AF_INET, SOCK_STREAM, 0)) < 0) {
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echo "socket_create() failed: reason: " . socket_strerror ($sock) . "\n";
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}
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if (($ret = socket_bind ($sock, $address, $port)) < 0) {
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echo "socket_bind() failed: reason: " . socket_strerror ($ret) . "\n";
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}
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if (($ret = socket_listen ($sock, 5)) < 0) {
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echo "socket_listen() failed: reason: " . socket_strerror ($ret) . "\n";
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}
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do {
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if (($msgsock = socket_accept($sock)) < 0) {
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echo "socket_accept() failed: reason: " . socket_strerror ($msgsock) . "\n";
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break;
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}
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/* Send instructions. */
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$msg = "\nWelcome to the PHP Test Server. \n" .
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"To quit, type 'quit'. To shut down the server type 'shutdown'.\n";
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socket_write($msgsock, $msg, strlen($msg));
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do {
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if (FALSE === ($buf = socket_read ($msgsock, 2048))) {
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echo "socket_read() failed: reason: " . socket_strerror ($ret) . "\n";
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break 2;
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}
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if (!$buf = trim ($buf)) {
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continue;
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}
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if ($buf == 'quit') {
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break;
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}
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if ($buf == 'shutdown') {
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socket_close ($msgsock);
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break 2;
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}
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$talkback = "PHP: You said '$buf'.\n";
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socket_write ($msgsock, $talkback, strlen ($talkback));
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echo "$buf\n";
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} while (true);
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socket_close ($msgsock);
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} while (true);
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socket_close ($sock);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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<example>
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<title>Socket example: Simple TCP/IP client</title>
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<para>
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This example shows a simple, one-shot HTTP client. It simply
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connects to a page, submits a HEAD request, echoes the reply,
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and exits.
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</para>
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<programlisting>
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<![CDATA[
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<?php
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error_reporting (E_ALL);
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echo "<h2>TCP/IP Connection</h2>\n";
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/* Get the port for the WWW service. */
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$service_port = getservbyname ('www', 'tcp');
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/* Get the IP address for the target host. */
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$address = gethostbyname ('www.example.com');
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/* Create a TCP/IP socket. */
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$socket = socket_create (AF_INET, SOCK_STREAM, 0);
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if ($socket < 0) {
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echo "socket_create() failed: reason: " . socket_strerror ($socket) . "\n";
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} else {
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echo "OK.\n";
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}
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echo "Attempting to connect to '$address' on port '$service_port'...";
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$result = socket_connect ($socket, $address, $service_port);
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if ($result < 0) {
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echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";
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} else {
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echo "OK.\n";
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}
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$in = "HEAD / HTTP/1.0\r\n\r\n";
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$out = '';
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echo "Sending HTTP HEAD request...";
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socket_write ($socket, $in, strlen ($in));
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echo "OK.\n";
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echo "Reading response:\n\n";
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while ($out = socket_read ($socket, 2048)) {
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echo $out;
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}
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echo "Closing socket...";
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socket_close ($socket);
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echo "OK.\n\n";
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</partintro>
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<refentry id="function.socket-accept">
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<refnamediv>
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<refname>socket_accept</refname>
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<refpurpose>Accepts a connection on a socket</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>socket_accept</methodname>
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<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
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</methodsynopsis>
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&warn.experimental.func;
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<para>
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After the socket <parameter>socket</parameter> has been created
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using <function>socket_create</function>, bound to a name with
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<function>socket_bind</function>, and told to listen for connections
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with <function>socket_listen</function>, this function will accept
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incoming connections on that socket. Once a successful connection
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is made, a new socket descriptor is returned, which may be used
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for communication. If there are multiple connections queued on
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the socket, the first will be used. If there are no pending
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connections, <function>socket_accept</function> will block until
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a connection becomes present. If <parameter>socket</parameter>
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has been made non-blocking using
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<function>socket_set_blocking</function> or
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<function>socket_set_nonblock</function>, an error code will be
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returned.
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</para>
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<para>
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The socket descriptor returned by
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<function>socket_accept</function> may not be used to accept new
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connections. The original listening socket
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<parameter>socket</parameter>, however, remains open and may be
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reused.
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</para>
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<para>
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Returns a new socket descriptor on success, or a negative error
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code on failure. This code may be passed to
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<function>socket_strerror</function> to get a textual explanation of the
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error.
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</para>
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<para>
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See also
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<function>socket_bind</function>,
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<function>socket_connect</function>,
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<function>socket_listen</function>,
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<function>socket_create</function>, and
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<function>socket_strerror</function>.
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</para>
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</refsect1>
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</refentry>
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<refentry id="function.socket-bind">
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<refnamediv>
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<refname>socket_bind</refname>
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<refpurpose>Binds a name to a socket</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>socket_bind</methodname>
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<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
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<methodparam><type>string</type><parameter>address</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>port</parameter></methodparam>
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</methodsynopsis>
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&warn.experimental.func;
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<para>
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<function>socket_bind</function> binds the name given in
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<parameter>address</parameter> to the socket described by
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<parameter>socket</parameter>, which must be a valid socket
|
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descriptor created with <function>socket_create</function>.
|
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</para>
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<para>
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The <parameter>address</parameter> parameter is either an IP
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address in dotted-quad notation
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(e.g. <literal>127.0.0.1</literal>), if the socket is of the
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<constant>AF_INET</constant> family; or the pathname of a
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Unix-domain socket, if the socket family is
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<constant>AF_UNIX</constant>.
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</para>
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<para>
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The <parameter>port</parameter> parameter is only used when
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connecting to an <constant>AF_INET</constant> socket, and
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designates the port on the remote host to which a connection
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should be made.
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</para>
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<para>
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Returns zero on success, or a negative error code on
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failure. This code may be passed to <function>socket_strerror</function>
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to get a textual explanation of the error.
|
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</para>
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<para>
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See also
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<function>socket_connect</function>,
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<function>socket_listen</function>,
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<function>socket_create</function>, and
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<function>socket_strerror</function>.
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</para>
|
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</refsect1>
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</refentry>
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<refentry id="function.socket-close">
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<refnamediv>
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<refname>socket_close</refname>
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<refpurpose>Closes a socket descriptor</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>bool</type><methodname>socket_close</methodname>
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<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
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</methodsynopsis>
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&warn.experimental.func;
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<para>
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<function>socket_close</function> closes the file (or socket) descriptor
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given by <parameter>socket</parameter>.
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</para>
|
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<para>
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Note that <function>socket_close</function> should not be used on PHP
|
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file descriptors created with <function>fopen</function>,
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<function>popen</function>, <function>fsockopen</function>, or
|
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<function>psockopen</function>; it is meant for sockets created
|
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with <function>socket_create</function> or
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<function>socket_accept</function>.
|
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</para>
|
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<para>
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Returns &true; on success, or &false;
|
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if an error occurs (i.e., <parameter>socket</parameter> is invalid).
|
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</para>
|
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<para>
|
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See also <function>socket_bind</function>, <function>socket_listen</function>,
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<function>socket_create</function>, and
|
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<function>socket_strerror</function>.
|
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</para>
|
|
</refsect1>
|
|
</refentry>
|
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|
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<refentry id="function.socket-connect">
|
|
<refnamediv>
|
|
<refname>socket_connect</refname>
|
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<refpurpose>Initiates a connection on a socket</refpurpose>
|
|
</refnamediv>
|
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<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
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<type>int</type><methodname>socket_connect</methodname>
|
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<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
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<methodparam><type>string</type><parameter>address</parameter></methodparam>
|
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<methodparam choice="opt"><type>int</type><parameter>port</parameter></methodparam>
|
|
</methodsynopsis>
|
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&warn.experimental.func;
|
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<para>
|
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Initiates a connection using the socket descriptor
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<parameter>socket</parameter>, which must be a valid socket
|
|
descriptor created with <function>socket_create</function>.
|
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</para>
|
|
<para>
|
|
The <parameter>address</parameter> parameter is either an IP
|
|
address in dotted-quad notation
|
|
(e.g. <literal>127.0.0.1</literal>), if the socket is of the
|
|
<constant>AF_INET</constant> family; or the pathname of a
|
|
Unix-domain socket, if the socket family is
|
|
<constant>AF_UNIX</constant>.
|
|
</para>
|
|
<para>
|
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The <parameter>port</parameter> parameter is only used when
|
|
connecting to an <constant>AF_INET</constant> socket, and
|
|
designates the port on the remote host to which a connection
|
|
should be made.
|
|
</para>
|
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<para>
|
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Returns zero on success, or a negative error code on
|
|
failure. This code may be passed to <function>socket_strerror</function>
|
|
to get a textual explanation of the error.
|
|
</para>
|
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<para>
|
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See also
|
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<function>socket_bind</function>,
|
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<function>socket_listen</function>,
|
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<function>socket_create</function>, and
|
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<function>socket_strerror</function>.
|
|
</para>
|
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</refsect1>
|
|
</refentry>
|
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|
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<refentry id="function.socket-listen">
|
|
<refnamediv>
|
|
<refname>socket_listen</refname>
|
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<refpurpose>Listens for a connection on a socket</refpurpose>
|
|
</refnamediv>
|
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<refsect1>
|
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<title>Description</title>
|
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<methodsynopsis>
|
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<type>int</type><methodname>socket_listen</methodname>
|
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<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
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<methodparam><type>int</type><parameter>backlog</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
After the socket <parameter>socket</parameter> has been created
|
|
using <function>socket_create</function> and bound to a name with
|
|
<function>socket_bind</function>, it may be told to listen for incoming
|
|
connections on <parameter>socket</parameter>. A maximum of
|
|
<parameter>backlog</parameter> incoming connections will be
|
|
queued for processing.
|
|
</para>
|
|
<para>
|
|
<function>socket_listen</function> is applicable only to sockets with
|
|
type <literal>SOCK_STREAM</literal> or
|
|
<literal>SOCK_SEQPACKET</literal>.
|
|
</para>
|
|
<para>
|
|
Returns zero on success, or a negative error code on
|
|
failure. This code may be passed to <function>socket_strerror</function>
|
|
to get a textual explanation of the error.
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>socket_accept</function>,
|
|
<function>socket_bind</function>,
|
|
<function>socket_connect</function>,
|
|
<function>socket_create</function>, and
|
|
<function>socket_strerror</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-read">
|
|
<refnamediv>
|
|
<refname>socket_read</refname>
|
|
<refpurpose>Reads from a socket</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>socket_read</methodname>
|
|
<methodparam><type>resource</type><parameter>socket_des</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>length</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>type</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
The function <function>socket_read</function> reads from socket
|
|
<parameter>socket_des</parameter> created by the
|
|
<function>socket_accept</function> function the number of bytes set by
|
|
<parameter>length</parameter>. Otherwise you can use \n, \t or \0 to
|
|
end reading. Returns data, or FALSE if
|
|
<function>socket_read</function> failed.
|
|
</para>
|
|
<para>
|
|
Optional <parameter>type</parameter> parameter is a named constant:
|
|
<itemizedlist>
|
|
<listitem>
|
|
<simpara>
|
|
PHP_BINARY_READ - use the system <function>socket_read</function>
|
|
(Default in PHP >= 4.1.0)
|
|
</simpara>
|
|
</listitem>
|
|
<listitem>
|
|
<simpara>
|
|
PHP_NORMAL_READ - reading stops at \n or \r. (Default in PHP <= 4.0.6)
|
|
</simpara>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>socket_accept</function>,
|
|
<function>socket_bind</function>,
|
|
<function>socket_connect</function>,
|
|
<function>socket_listen</function>,
|
|
<function>socket_strerror</function>, and
|
|
<function>socket_write</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-create">
|
|
<refnamediv>
|
|
<refname>socket_create</refname>
|
|
<refpurpose>Create a socket (endpoint for communication)</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>resource</type><methodname>socket_create</methodname>
|
|
<methodparam><type>int</type><parameter>domain</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>type</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>protocol</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
Creates a communication endpoint (a socket), and returns a
|
|
descriptor to the socket.
|
|
</para>
|
|
<para>
|
|
The <parameter>domain</parameter> parameter sets the
|
|
domain. Currently, <constant>AF_INET</constant> and
|
|
<constant>AF_UNIX</constant> are understood.
|
|
</para>
|
|
<para>
|
|
The <parameter>type</parameter> parameter selects the socket
|
|
type. This is one of <constant>SOCK_STREAM</constant>,
|
|
<constant>SOCK_DGRAM</constant>,
|
|
<constant>SOCK_SEQPACKET</constant>,
|
|
<constant>SOCK_RAW</constant>, <constant>SOCK_RDM</constant>, or
|
|
<constant>SOCK_PACKET</constant>.
|
|
</para>
|
|
<para>
|
|
<parameter>protocol</parameter> sets the protocol.
|
|
</para>
|
|
<para>
|
|
Returns a valid socket descriptor on success, or a negative error
|
|
code on failure. This code may be passed to
|
|
<function>socket_strerror</function> to get a textual explanation of the
|
|
error.
|
|
</para>
|
|
<para>
|
|
For more information on the usage of <function>socket_create</function>,
|
|
as well as on the meanings of the various parameters, see the
|
|
Unix man page socket (2).
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>socket_accept</function>,
|
|
<function>socket_bind</function>,
|
|
<function>socket_connect</function>,
|
|
<function>socket_listen</function>, and
|
|
<function>socket_strerror</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-strerror">
|
|
<refnamediv>
|
|
<refname>socket_strerror</refname>
|
|
<refpurpose>Return a string describing a socket error</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>socket_strerror</methodname>
|
|
<methodparam><type>int</type><parameter>errno</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
<function>socket_strerror</function> takes as its
|
|
<parameter>errno</parameter> parameter the return value of one of
|
|
the socket functions, and returns the corresponding explanatory
|
|
text. This makes it a bit more pleasant to figure out why
|
|
something didn't work; for instance, instead of having to track
|
|
down a system include file to find out what '-111' means, you
|
|
just pass it to <function>socket_strerror</function>, and it tells you
|
|
what happened.
|
|
</para>
|
|
<para>
|
|
<example>
|
|
<title><function>socket_strerror</function> example</title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
if (($socket = socket_create (AF_INET, SOCK_STREAM, 0)) < 0) {
|
|
echo "socket_create() failed: reason: " . socket_strerror ($socket) . "\n";
|
|
}
|
|
|
|
if (($ret = socket_bind ($socket, '127.0.0.1', 80)) < 0) {
|
|
echo "socket_bind() failed: reason: " . socket_strerror ($ret) . "\n";
|
|
}
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
<para>
|
|
The expected output from the above example (assuming the script
|
|
is not run with root privileges):
|
|
<screen>
|
|
bind() failed: reason: Permission denied
|
|
</screen>
|
|
</para>
|
|
</example>
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>socket_accept</function>,
|
|
<function>socket_bind</function>,
|
|
<function>socket_connect</function>,
|
|
<function>socket_listen</function>, and
|
|
<function>socket_create</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-write">
|
|
<refnamediv>
|
|
<refname>socket_write</refname>
|
|
<refpurpose>Write to a socket</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_write</methodname>
|
|
<methodparam><type>resource</type><parameter>socket_des</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&buffer</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>length</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
The function <function>socket_write</function> writes to the socket
|
|
<parameter>socket_des</parameter> from
|
|
<parameter>&buffer</parameter> the number of bytes set by
|
|
<parameter>length</parameter>.
|
|
</para>
|
|
<para>
|
|
See also
|
|
<function>socket_accept</function>,
|
|
<function>socket_bind</function>,
|
|
<function>socket_connect</function>,
|
|
<function>socket_listen</function>,
|
|
<function>socket_read</function>, and
|
|
<function>socket_strerror</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-alloc">
|
|
<refnamediv>
|
|
<refname>socket_fd_alloc</refname>
|
|
<refpurpose>Allocates a new file descriptor set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>resource</type><methodname>socket_fd_alloc</methodname>
|
|
<void/>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-free">
|
|
<refnamediv>
|
|
<refname>socket_fd_free</refname>
|
|
<refpurpose>Deallocates a file descriptor set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_fd_free</methodname>
|
|
<methodparam><type>resource</type><parameter>set</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-set">
|
|
<refnamediv>
|
|
<refname>socket_fd_set</refname>
|
|
<refpurpose>Adds (a) file descriptor(s) to a set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_fd_set</methodname>
|
|
<methodparam><type>resource</type><parameter>set</parameter></methodparam>
|
|
<methodparam><type>mixed</type><parameter>socket</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-clear">
|
|
<refnamediv>
|
|
<refname>socket_fd_clear</refname>
|
|
<refpurpose>Clears (a) file descriptor(s) from a set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_fd_clear</methodname>
|
|
<methodparam><type>resource</type><parameter>set</parameter></methodparam>
|
|
<methodparam><type>mixed</type><parameter>socket</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-isset">
|
|
<refnamediv>
|
|
<refname>socket_fd_isset</refname>
|
|
<refpurpose>Checks to see if a file descriptor is set within the file descrirptor set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_fd_isset</methodname>
|
|
<methodparam><type>resource</type><parameter>set</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-fd-zero">
|
|
<refnamediv>
|
|
<refname>socket_fd_zero</refname>
|
|
<refpurpose>Clears a file descriptor set </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_fd_zero</methodname>
|
|
<methodparam><type>resource</type><parameter>set</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-select">
|
|
<refnamediv>
|
|
<refname>socket_select</refname>
|
|
<refpurpose>Runs the select() system call on the sets mentioned with a timeout specified by tv_sec and tv_usec </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_select</methodname>
|
|
<methodparam><type>resource</type><parameter>read_fd</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>write_fd</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>except_fd</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>tv_sec</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>tv_usec</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-create-listen">
|
|
<refnamediv>
|
|
<refname>socket_create_listen</refname>
|
|
<refpurpose>Opens a socket on port to accept connections </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>resource</type><methodname>socket_create_listen</methodname>
|
|
<methodparam><type>int</type><parameter>port</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>backlog</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-set-nonblock">
|
|
<refnamediv>
|
|
<refname>socket_set_nonblock</refname>
|
|
<refpurpose>Sets nonblocking mode for file descriptor fd </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_set_nonblock</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-getsockname">
|
|
<refnamediv>
|
|
<refname>socket_getsockname</refname>
|
|
<refpurpose>Given an fd, stores a string representing sa.sin_addr and the value of sa.sin_port into addr and port describing the local side of a socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_getsockname</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&addr</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>&port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-getpeername">
|
|
<refnamediv>
|
|
<refname>socket_getpeername</refname>
|
|
<refpurpose>Given an fd, stores a string representing sa.sin_addr and the value of sa.sin_port into addr and port describing the remote side of a socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_getpeername</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&addr</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>&port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-alloc">
|
|
<refnamediv>
|
|
<refname>socket_iovec_alloc</refname>
|
|
<refpurpose>...]) Builds a 'struct iovec' for use with sendmsg, recvmsg, writev, and readv </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>resource</type><methodname>socket_iovec_alloc</methodname>
|
|
<methodparam><type>int</type><parameter>num_vectors</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter/></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-fetch">
|
|
<refnamediv>
|
|
<refname>socket_iovec_fetch</refname>
|
|
<refpurpose>Returns the data held in the iovec specified by iovec_id[iovec_position] </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>socket_iovec_fetch</methodname>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>iovec_position</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-set">
|
|
<refnamediv>
|
|
<refname>socket_iovec_set</refname>
|
|
<refpurpose>Sets the data held in iovec_id[iovec_position] to new_val </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_iovec_set</methodname>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>iovec_position</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>new_val</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-add">
|
|
<refnamediv>
|
|
<refname>socket_iovec_add</refname>
|
|
<refpurpose>Adds a new vector to the scatter/gather array </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_iovec_add</methodname>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>iov_len</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-delete">
|
|
<refnamediv>
|
|
<refname>socket_iovec_delete</refname>
|
|
<refpurpose>Deletes a vector from an array of vectors </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_iovec_delete</methodname>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>iov_pos</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-iovec-free">
|
|
<refnamediv>
|
|
<refname>socket_iovec_free</refname>
|
|
<refpurpose>Frees the iovec specified by iovec_id </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_iovec_free</methodname>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-readv">
|
|
<refnamediv>
|
|
<refname>socket_readv</refname>
|
|
<refpurpose>Reads from an fd, using the scatter-gather array defined by iovec_id </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_readv</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>iovec_id</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-writev">
|
|
<refnamediv>
|
|
<refname>socket_writev</refname>
|
|
<refpurpose>Writes to a file descriptor, fd, using the scatter-gather array defined by iovec_id </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_writev</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>iovec_id</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-recv">
|
|
<refnamediv>
|
|
<refname>socket_recv</refname>
|
|
<refpurpose>Receives data from a connected socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>socket_recv</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>len</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-send">
|
|
<refnamediv>
|
|
<refname>socket_send</refname>
|
|
<refpurpose>Sends data to a connected socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_send</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>buf</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>len</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-recvfrom">
|
|
<refnamediv>
|
|
<refname>socket_recvfrom</refname>
|
|
<refpurpose>Receives data from a socket, connected or not </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_recvfrom</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&buf</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>len</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&name</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>&port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-sendto">
|
|
<refnamediv>
|
|
<refname>socket_sendto</refname>
|
|
<refpurpose>Sends a message to a socket, whether it is connected or not </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_sendto</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>buf</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>len</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>addr</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-recvmsg">
|
|
<refnamediv>
|
|
<refname>socket_recvmsg</refname>
|
|
<refpurpose>Used to receive messages on a socket, whether connection-oriented or not </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_recvmsg</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>array</type><parameter>&control</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>&controllen</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>&flags</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>&addr</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>&port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-sendmsg">
|
|
<refnamediv>
|
|
<refname>socket_sendmsg</refname>
|
|
<refpurpose>Sends a message to a socket, regardless of whether it is connection-oriented or not </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_sendmsg</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>resource</type><parameter>iovec</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>flags</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>addr</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>port</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-getopt">
|
|
<refnamediv>
|
|
<refname>socket_getopt</refname>
|
|
<refpurpose>Gets socket options for the socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>mixed</type><methodname>socket_getopt</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>level</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>optname</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-setopt">
|
|
<refnamediv>
|
|
<refname>socket_setopt</refname>
|
|
<refpurpose>Sets socket options for the socket</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_setopt</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>level</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>optname</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter/></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-create-pair">
|
|
<refnamediv>
|
|
<refname>socket_create_pair</refname>
|
|
<refpurpose>Creates a pair of indistinguishable sockets and stores them in fds. </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_create_pair</methodname>
|
|
<methodparam><type>int</type><parameter>domain</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>type</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>protocol</parameter></methodparam>
|
|
<methodparam><type>array</type><parameter>&fd</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-shutdown">
|
|
<refnamediv>
|
|
<refname>socket_shutdown</refname>
|
|
<refpurpose>Shuts down a socket for receiving, sending, or both. </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>socket_shutdown</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
<methodparam choice="opt"><type>int</type><parameter>how</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<refentry id="function.socket-last-error">
|
|
<refnamediv>
|
|
<refname>socket_last_error</refname>
|
|
<refpurpose>Returns/Clears the last error on the socket </refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>socket_last_error</methodname>
|
|
<methodparam><type>resource</type><parameter>socket</parameter></methodparam>
|
|
</methodsynopsis>
|
|
&warn.experimental.func;
|
|
<para>
|
|
&warn.undocumented.func;
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
</reference>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"../../manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|
|
|