get_headers - not reliable?

[dougal85]

Is this not reliable? can servers be set up in a way so that it wont work?

The Below code does not give me the output I would expect

<?php
header("Content-type: text/plain");
$url = array();
$url[] = "http://www.espc.com/EspcPublicMedia/RegistrationMedia/242000/242400/242468/Images/242468_a.jpg";
$url[] = "http://www.espc.com/EspcPublicMedia/RegistrationMedia/238000/238400/238477/Images/238477_a.jpg";
$url[] = "http://www.dougalmatthews.com/Default.aspx";
$url[] = "http://www.dougalmatthews.com/Default2.aspx";
foreach ($url as $u){
	echo "\n\n". $u ."\n\n";
	print_r(get_headers($u));
}

Output below. In the array only one out of the espc.com links work if you follow them and the only the first one of my website works too. However, Default2.aspx on my website returns the code 404 - both results from espc.com return 200. However if you visit them you will get the 404 page missing for one of them...

http://www.espc.com/EspcPublicMedia/RegistrationMedia/242000/242400/242468/Images/242468_a.jpg

Array
(
    [0] => HTTP/1.1 200 OK
    [1] => Content-Length: 10599
    [2] => Content-Type: image/jpeg
    [3] => Last-Modified: Mon, 18 Jun 2007 08:04:04 GMT
    [4] => Accept-Ranges: bytes
    [5] => ETag: "1688df3c7fb1c71:6a5"
    [6] => Server: Microsoft-IIS/6.0
    [7] => X-Powered-By: ASP.NET
    [8] => Date: Thu, 27 Sep 2007 14:11:20 GMT
    [9] => Connection: close
)


http://www.espc.com/EspcPublicMedia/RegistrationMedia/238000/238400/238477/Images/238477_a.jpg

Array
(
    [0] => HTTP/1.1 200 OK
    [1] => Content-Length: 13785
    [2] => Content-Type: image/jpeg
    [3] => Last-Modified: Mon, 27 Aug 2007 15:08:30 GMT
    [4] => Accept-Ranges: bytes
    [5] => ETag: "aed5a620bce8c71:6a5"
    [6] => Server: Microsoft-IIS/6.0
    [7] => X-Powered-By: ASP.NET
    [8] => Date: Thu, 27 Sep 2007 14:11:20 GMT
    [9] => Connection: close
)


http://www.dougalmatthews.com/Default.aspx

Array
(
    [0] => HTTP/1.1 200 OK
    [1] => Connection: close
    [2] => Date: Thu, 27 Sep 2007 14:11:15 GMT
    [3] => Server: Microsoft-IIS/6.0
    [4] => X-Powered-By: ASP.NET
    [5] => X-AspNet-Version: 2.0.50727
    [6] => Cache-Control: private
    [7] => Content-Type: text/html; charset=utf-8
    [8] => Content-Length: 9273
)


http://www.dougalmatthews.com/Default2.aspx

Array
(
    [0] => HTTP/1.1 404 Not Found
    [1] => Connection: close
    [2] => Date: Thu, 27 Sep 2007 14:11:15 GMT
    [3] => Server: Microsoft-IIS/6.0
    [4] => X-Powered-By: ASP.NET
    [5] => X-AspNet-Version: 2.0.50727
    [6] => Cache-Control: private
    [7] => Content-Type: text/html; charset=utf-8
    [8] => Content-Length: 3511
)

[GeeG]

use array numbers. For Example :
$ur[0]
$url[1]
.
.
.

and u dont have to specify $url as a array. U can delete the line that $url=array();

[dougal85]

I don't think you understood my question.

[GeeG]

sorry dougal85, i read only " In the array only one out of the espc.com links work "

what output would u expect ?

servers can be set up with closing requests whose different servers.

i wish i see your question now 🙂

[dougal85]

In the code there are 4 links, in the output there are 4 arrays.

only 3 of the links are valid but 3 our of the 4 links are http/1.1 200 OK

So, the espc.com seems to be reporting broken links as being valid. you can check this by following the links.