Using fsockopen and fread (Zend Cert)

[crmpicco]

Hey all,

I have came across this during my Zend Cert study, can anyone advise?

Q: What is wrong with the following code snippet? Assume default configuration values apply.

<?php
$fp = fsockopen('www.php.net', 80);
fwrite($fp, "GET / HTTP/1.0\r\nHost: www.php.net\r\n");
$data = fread($fp, 8192);
?>

Answers (Choose 1):
The request is blocking and may cause fread() to hang
The HTTP request is malformed
This script should be re-written using fgets() instead of fread()
The request is non-blocking and fread() may miss the response
You cannot use fwrite() with fsockopen()

Many thanks,
Picco

[Mindzai]

The request is missing its closing \r\n and as such is malformed.

[crmpicco]

Should there be a double \r\n at the end of the request?

fwrite($fp, "GET / HTTP/1.0\r\nHost: www.php.net\r\n\r\n"); 

?

[Mindzai]

Yes. This is what distinguishes the end of the request from a new line.