PHP fsockopen() Function

Example

fsockopen() example:

<?php
$fp = fsockopen("www.w3schools.com", 80, $errno, $errstr, 20);
if (!$fp) {
echo "$errstr ($errno)<br>";
} else {
$out = "GET / HTTP/1.1\r\n";
$out .= "Host: www.w3schools.com\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>

Definition and Usage

The fsockopen() function opens an Internet or Unix domain socket connection.

Syntax

fsockopen(hostname, port, errno, errstr, timeout)

Parameter Values

Parameter	Description
hostname	Required. Specifies a hostname (like "www.w3schools.com"). ssl:// or tls:// works over TCP/IP to connect to the remote host
port	Optional. Specifies the port number. Use -1 for transports that do not use ports, like unix://
errno	Optional. Specifies the system level error number
errstr	Optional. Specifies the error message as a string
timeout	Optional. Specifies the connection timeout (in seconds)

Technical Details

Return Value:	A file pointer that can be used with other file functions (such as fgets(), fwrite(), fclose()). FALSE on failure.
PHP Version:	4.0+

❮ PHP Network Reference