php curl problem

Question

I am trying to get information of remote file with curl. Problem is that other web-server is on port 81.

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt ($ch, CURLOPT_PORT , 81);
curl_setopt($ch, CURLOPT_URL, 'http://98.246.25.185/server_status2.php');
$store = curl_exec ($ch);
echo substr($store, 1);
curl_close ($ch);
?>

And as you can see it doesnt work.

<?php $ch = curl_init(); curl_setopt($ch, CURLOPT_VERBOSE, true); curl_setopt ($ch, CURLOPT_PORT , 81); curl_setopt($ch, CURLOPT_URL, '98.246.25.185/server_status2.php'); $store = curl_exec ($ch); echo substr($store, 1); curl_close ($ch); ?> — DanSpd
– DanSpd, Commented Dec 19, 2009 at 17:11
@DanSpd : the code is not messaed up by the "stupid script" : you just didn't respect the code-formating specification : on the right of the edit form, there should be a quick reference about the syntax, and a link to the full reference : stackoverflow.com/editing-help ;; and in the toolbar of the edit-form, there is an icon with some 0 and 1, which indents code so it is formated. — Pascal MARTIN
– Pascal MARTIN, Commented Dec 19, 2009 at 17:14

Pascal MARTIN · Accepted Answer · 2009-12-19 17:17:04Z

5

What happens if you specify the port number in the URI ?

What I mean is first remove the CURLOPT_PORT line, and, then, modify the CURLOPT_URL one to add the port number :

curl_setopt($ch, CURLOPT_URL, 'http://98.246.25.185:81/server_status2.php');

Edit after the comment : I just tryied this portion of code :

$ch = curl_init();
curl_setopt($ch, CURLOPT_VERBOSE, true);
//curl_setopt ($ch, CURLOPT_PORT , 81);
curl_setopt($ch, CURLOPT_URL, 'http://98.246.25.185:81/server_status2.php');
$store = curl_exec ($ch);
echo substr($store, 1);
curl_close ($ch);

And I get this output :

Online Peak: 59
Online: 17
Distributive server: Online
Agent server: Online

So, the code seems to be OK.

Are you sure there is not a firewall or anything or your network, that prevents you from doing HTTP requests on port 81 to that server ?
Does it work when you type that URI in your browser ?

edited Dec 19, 2009 at 17:17

answered Dec 19, 2009 at 17:11

Pascal MARTIN

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2 Comments

DanSpd Over a year ago

it will keep loading for ever

Pascal MARTIN Over a year ago

I confirm it remains "waiting" forever ^^ Which is generally caused by some network connection not being possible : like if there were some firewall on your network, preventing your first server from connecting to that second server (I've seen that kind of situation of few times, where non-standard port where blocked by hosting providers -- maybe it's the case here ? )

Matthew Erwin · Accepted Answer · 2014-10-27 23:10:54Z

2

Not sure if you're using SELinux or not (e.g. under Centos) but you may need to allow this specific permission (non-typical ports):

setsebool -P httpd_can_network_connect on

I would also strongly suggest adding additional configuration options to get any error output from CURL such as:

curl_setopt($ch,CURLOPT_FAILONERROR,1);
$data = curl_exec($ch);
$curl_errno = curl_errno($ch);
$curl_error = curl_error($ch);
if($curl_errno > 0)
    die("cURL Error ($curl_errno): $curl_error");

answered Oct 27, 2014 at 23:10

Matthew Erwin

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Comments

Atli · Accepted Answer · 2009-12-19 17:16:05Z

1

Your original code works fine for me. Returns:

<b>Online Peak: </b>59        <br /><b>Online: </b> 17<br /><b>Distributive server:</b> <font color=green>Online</font><br /><b>Agent server:</b> <font color=green>Online</font><br />

Perhaps the port is being blocked by your firewall?

P.S. The echo in your code is redundant. The curl_exec prints the result to the output buffer unless you set CURLOPT_RETURNTRANSFER as TRUE.

answered Dec 19, 2009 at 17:16

Atli

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