Open persistent Internet or Unix domain socket connection
Syntax
pfsockopen ( string $hostname [, int $port = -1 [, int &$errno [, string &$errstr [, float $timeout = ini_get("default_socket_timeout") ]]]] ) : resource
Parameters
hostname
If OpenSSL support is installed, you may prefix the hostname with either ssl:// or tls:// to use an SSL or TLS client connection over TCP/IP to connect to the remote host.
port
The port number. This can be omitted and skipped with -1 for transports that do not use ports, such as unix://.
errno
If provided, holds the system level error number that occurred in the system-level connect() call. If the value returned in errno is 0 and the function returned FALSE, it is an indication that the error occurred before the connect() call. This is most likely due to a problem initializing the socket.
errstr
The error message as a string.
timeout
The connection timeout, in seconds. Note: If you need to set a timeout for reading/writing data over the socket, use stream_set_timeout(), as the timeout parameter to fsockopen() only applies while connecting the socket.
Return
Examples
1
<?
$fp = pfsockopen("ssl://php.net", 443, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br>\n";
} else {
$out = "GET / HTTP/1.1\r\n";
$out .= "Host: php.net\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>
HTTP/1.1 301 Moved Permanently Server: myracloud Date: Sun, 24 Oct 2021 16:41:53 GMT Content-Type: text/html Content-Length: 161 Connection: close Location: https://www.php.net/ <html> <head><title>301 Moved Permanently</title></head> <body> <center><h1>301 Moved Permanently</h1></center> <hr><center>Myra</center> </body> </html>
