Quick Reference
The PHP pfsockopen() function opens a persistent internet or Unix domain socket connection.
<?php
$fp = pfsockopen('www.1smartchicken.com', 80, $errno, $errstr, 20);
if (!$fp) {
echo "$errstr ($errno)<br>";
}
else {
$out = "GET / HTTP/1.1\r\n";
$out .= "Host: www.1smartchicken.com\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>Syntax
pfsockopen(hostname, port, errno, errstr, timeout)Parameters
| Parameter | Description |
|---|---|
| hostname | Specifies a hostname like "www.1smartchicken.com" (ssl:// or tls:// works over TCP/IP to connect to the remote host) (required) |
| port | Specifies the port number; use -1 for transports that do not use ports, like unix:// |
| errno | Specifies the system level error number |
| errstr | Specifies the error message as a string |
| timeout | Specifies the connection timeout in seconds |
PHP Notes:
- When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.