PHP での主なソケット関数の構文と使用例の詳細な説明

socket_create ( int $domain , int $type , int $protocol )

socket_bind ( resource $socket , string $address [, int $port = 0 ] )

socket_listen ( resource $socket [, int $backlog = 0 ] )

socket_set_block ( resource $socket )

socket_write ( resource $socket , string $buffer [, int $length = 0 ] )

socket_read ( resource $socket , int $length [, int $type = PHP_BINARY_READ ] )

pfsockopen ( string $hostname [, int $port = -1 [, int &$errno [, string &$errstr [, float $timeout = ini_get("default_socket_timeout") ]]]] )

socket_set_option ( resource$socket , int$level , int$optname , mixed$optval )

socket_last_error ([ resource$socket ] )

socket_strerror ( int $errno )

extension=php_sockets.dll

<?php
//确保在连接客户端时不会超时
set_time_limit(0);
$ip = &#39;127.0.0.1&#39;;
$port = 1935;
/*
 +-------------------------------
 *    @socket通信整个过程
 +-------------------------------
 *    @socket_create
 *    @socket_bind
 *    @socket_listen
 *    @socket_accept
 *    @socket_read
 *    @socket_write
 *    @socket_close
 +--------------------------------
 */
/*----------------    以下操作都是手册上的    -------------------*/
if(($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) < 0) {
    echo "socket_create() 失败的原因是:".socket_strerror($sock)."\n";
}
if(($ret = socket_bind($sock,$ip,$port)) < 0) {
    echo "socket_bind() 失败的原因是:".socket_strerror($ret)."\n";
}
if(($ret = socket_listen($sock,4)) < 0) {
    echo "socket_listen() 失败的原因是:".socket_strerror($ret)."\n";
}
$count = 0;
do {
    if (($msgsock = socket_accept($sock)) < 0) {
        echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "\n";
        break;
    } else {
        
        //发到客户端
        $msg ="测试成功！\n";
        socket_write($msgsock, $msg, strlen($msg));
        
        echo "测试成功了啊\n";
        $buf = socket_read($msgsock,8192);
        
        
        $talkback = "收到的信息:$buf\n";
        echo $talkback;
        
        if(++$count >= 5){
            break;
        };
        
    
    }
    //echo $buf;
    socket_close($msgsock);
} while (true);
socket_close($sock);
?>

<?php
error_reporting(E_ALL);
set_time_limit(0);
echo "<h2>TCP/IP Connection</h2>\n";
$port = 1935;
$ip = "127.0.0.1";
/*
 +-------------------------------
 *    @socket连接整个过程
 +-------------------------------
 *    @socket_create
 *    @socket_connect
 *    @socket_write
 *    @socket_read
 *    @socket_close
 +--------------------------------
 */
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket < 0) {
    echo "socket_create() failed: reason: " . socket_strerror($socket) . "\n";
}else {
    echo "OK.\n";
}
echo "试图连接 &#39;$ip&#39; 端口 &#39;$port&#39;...\n";
$result = socket_connect($socket, $ip, $port);
if ($result < 0) {
    echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";
}else {
    echo "连接OK\n";
}
$in = "Ho\r\n";
$in .= "first blood\r\n";
$out = &#39;&#39;;
if(!socket_write($socket, $in, strlen($in))) {
    echo "socket_write() failed: reason: " . socket_strerror($socket) . "\n";
}else {
    echo "发送到服务器信息成功！\n";
    echo "发送的内容为:<font color=&#39;red&#39;>$in</font> <br>";
}
while($out = socket_read($socket, 8192)) {
    echo "接收服务器回传信息成功！\n";
    echo "接受的内容为:",$out;
}
echo "关闭SOCKET...\n";
socket_close($socket);
echo "关闭OK\n";
?>