我正在尝试通过 PHP 套接字发送和接收数据。
一切正常,但是当我尝试发送数据时,PHP 不发送任何内容(Wireshark 告诉我发送的数据长度为 0)。
我正在使用这段代码:
<?php
$address = 'example.com';
$port = 1234;
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$sockconnect = socket_connect($sock, $address, $port);
$c = 0;
do {
$c++;
$msg = '<test>Xml data</test>';
socket_write($sock, $msg, strlen($msg));
echo socket_read($sock, 1024 * 100, PHP_NORMAL_READ);
} while ($c < 3);
socket_close($sock);
谁能帮我?
感谢您阅读我的问题。
如果你连一次都不检查错误,你怎么知道一切都好呢?
考虑以下手册中的示例 http://www.php.net/manual/en/sockets.examples.php:
<?php
error_reporting(E_ALL);
/* Get the port for the WWW service. */
$service_port = getservbyname('www', 'tcp');
/* Get the IP address for the target host. */
$address = gethostbyname('www.example.com');
/* Create a TCP/IP socket. */
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
echo "socket_create() failed: reason: " .
socket_strerror(socket_last_error()) . "\n";
}
echo "Attempting to connect to '$address' on port '$service_port'...";
$result = socket_connect($socket, $address, $service_port);
if ($result === false) {
echo "socket_connect() failed.\nReason: ($result) " .
socket_strerror(socket_last_error($socket)) . "\n";
}
$in = "HEAD / HTTP/1.1\r\n";
$in .= "Host: www.example.com\r\n";
$in .= "Connection: Close\r\n\r\n";
$out = '';
echo "Sending HTTP HEAD request...";
socket_write($socket, $in, strlen($in));
echo "OK.\n";
echo "Reading response:\n\n";
while ($out = socket_read($socket, 2048)) {
echo $out;
}
socket_close($socket);
?>
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