PHP pfsockopen() Function
Example
pfsockopen() example:
<?php
$fp = pfsockopen("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 pfsockopen() function opens a persistent Internet or Unix domain socket connection.
Note: This function is almost identical to fsockopen(). The difference is that the connection is not closed after the script finishes. This function is the persistent version of fsockopen().
Syntax
pfsockopen(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
