mirror of
https://github.com/php/doc-zh.git
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162 lines
4.5 KiB
XML
162 lines
4.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: af4410a7e15898c3dbe83d6ea38246745ed9c6fb Maintainer: Carbyn Wu Status: ready -->
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<!-- Reviewed: no -->
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<chapter xml:id="sockets.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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&reftitle.examples;
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<para>
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<example>
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<title>Socket 举例：简单的 TCP/IP 服务器</title>
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<para>
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这个例子展示了一个简单的对讲服务器。更改 <varname>address</varname> 和 <varname>port</varname> 以满足设置和执行。
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可以使用类似于这样的命令连接到服务器：<command>telnet 192.168.1.53 10000</command>（address 和 port 匹配刚才的设置）。
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输入的任何东西都会在服务器端进行输出，并回显。要断开连接，请输入 “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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/* 允许脚本等待连接。 */
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set_time_limit(0);
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/* 打开绝对刷送，这样就可以看到接收了什么。 */
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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 (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
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echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
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}
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if (socket_bind($sock, $address, $port) === false) {
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echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
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}
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if (socket_listen($sock, 5) === false) {
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echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
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}
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do {
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if (($msgsock = socket_accept($sock)) === false) {
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echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
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break;
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}
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/* 发送说明。 */
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$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, PHP_NORMAL_READ))) {
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echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($msgsock)) . "\n";
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break 2;
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}
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if (!$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($sock);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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<example>
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<title>Socket 举例：简单的 TCP/IP 客户端</title>
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<para>
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这个例子展示了一个简单的，一次性的 HTTP 客户端。
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它只是连接到一个页面，提交一个 HEAD 请求，输出回复，然后退出。
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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error_reporting(E_ALL);
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echo "<h2>TCP/IP Connection</h2>\n";
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/* 获取 WWW 服务的 port。 */
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$service_port = getservbyname('www', 'tcp');
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/* 获取目标主机的 IP 地址。 */
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$address = gethostbyname('www.example.com');
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/* 创建 TCP/IP 套接字。 */
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$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
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if ($socket === false) {
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echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
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} else {
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echo "OK.\n";
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}
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echo "Attempting to connect to '$address' on port '$service_port'...";
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$result = socket_connect($socket, $address, $service_port);
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if ($result === false) {
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echo "socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "\n";
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} else {
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echo "OK.\n";
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}
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$in = "HEAD / HTTP/1.1\r\n";
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$in .= "Host: www.example.com\r\n";
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$in .= "Connection: Close\r\n\r\n";
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$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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</chapter>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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