fsockopen

[tweenerz]

I am forced to use fsockopen as opposed to fopen in my script. This seems like an easy operation, but I cant figure out how to do it.

I can connect fine to the server by using the domain name. But I can't figure out how to access a page further down the path.

For example:

  fsockopen('[URL unfurl="true"]www.example.com',80,$errno,$err,30)[/URL]

The above works fine.

But how to I get the a file located in

http://www.example.com/dir/file.php

? I can't just add it to the fsockopen argument, because it just wants a domain or ip. So how do I access a page othe than the root?

Thanks in advance.

 

[Bastien]

Use FGETS to access individual pages, the fsockopen is analogous to the mysql_connect function in that is opens a resource stream

Bastien

Cat, the other other white meat

 

[DRJ478]

fsockopen() just opens the connection and hands you a resource handle. After that you have to talk to the server using that handle and send HTTP requests - you are probably going to use a GET request.
The PHP documentation has the following example:

<?php
$fp = fsockopen("[URL unfurl="true"]www.example.com",[/URL] 80, $errno, $errstr, 30);
if (!$fp) {
   echo "$errstr ($errno)<br />\n";
} else {
   $out = "GET / HTTP/1.1\r\n";
   $out .= "Host: [URL unfurl="true"]www.example.com\r\n";[/URL]
   $out .= "Connection: Close\r\n\r\n";

   fwrite($fp, $out);
   while (!feof($fp)) {
       echo fgets($fp, 128);
   }
   fclose($fp);
}
?>

The $out variable holds the constructed HTTP GET request that needs to be sent before you can use fgets() to retrieve the response.

 

[tweenerz]

Thanks.

This led me to the answer I was looking for. I needed to figure out how/where to specify the path to the file I want.

The answer was in the

$out = "GET / HTTP/1.1\r\n";

line. The lone '/' is the path. I didn't realize that. So for my example above I would specify

$out = "GET /dir/file.php HTTP/1.1\r\n";

instead.

(I posted this for future searches)

 

[DRJ478]

Yes, the '/' resolves to the document root of the server you accessed.
Just as a note:
In the examples port 80 and HTTP are used. However, you can open any accessible port and use any protocol definition for sending and retrieving responses. RSS feeds, XML output etc.