Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Curl redirect,, not working?

Tags:

php

curl

I'm using the following code:

$agent= 'Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.9) Gecko/2008052906 Firefox/3.0';

$ch = curl_init();

curl_setopt($ch, CURLOPT_USERAGENT, $agent);

curl_setopt($ch, CURLOPT_URL, "www.example.com");

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_HEADER, 0);

$output = curl_exec($ch);

echo $output;

But it redirects to like this:

http://localhost/aide.do?sht=_aide_cookies_

Instead of to the URL page.

Can anyone help me solve my problem, please?

like image 933
Sushant Panigrahi Avatar asked Apr 02 '10 08:04

Sushant Panigrahi


People also ask

How do I enable redirects in curl?

To follow redirect with Curl, use the -L or --location command-line option. This flag tells Curl to resend the request to the new address. When you send a POST request, and the server responds with one of the codes 301, 302, or 303, Curl will make the subsequent request using the GET method.

Do not follow redirects curl?

In curl's tradition of only doing the basics unless you tell it differently, it does not follow HTTP redirects by default. Use the -L, --location option to tell it to do that. When following redirects is enabled, curl will follow up to 50 redirects by default.

How do you send a POST request on curl?

To make a POST request with Curl, you can run the Curl command-line tool with the -d or --data command-line option and pass the data as the second argument. Curl will automatically select the HTTP POST method and application/x-www-form-urlencoded content type for the transmitted data.

How do HTTP redirects work?

In HTTP, redirection is triggered by a server sending a special redirect response to a request. Redirect responses have status codes that start with 3 , and a Location header holding the URL to redirect to. When browsers receive a redirect, they immediately load the new URL provided in the Location header.


2 Answers

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

http://docs.php.net/function.curl-setopt says:

CURLOPT_FOLLOWLOCATION
TRUE to follow any "Location: " header that the server sends as part of the HTTP header (note this is recursive, PHP will follow as many "Location: " headers that it is sent, unless CURLOPT_MAXREDIRS is set).
like image 59
VolkerK Avatar answered Sep 30 '22 13:09

VolkerK


If it's up to URL redirection only then see the following code, I've documented it for you so you can use it easily & directly, you've two main cURL options control URL redirection (CURLOPT_FOLLOWLOCATION/CURLOPT_MAXREDIRS):

// create a new cURL resource
$ch = curl_init();

// The URL to fetch. This can also be set when initializing a session with curl_init().
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");

// The contents of the "User-Agent: " header to be used in a HTTP request.
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.9) Gecko/2008052906 Firefox/3.0");

// TRUE to include the header in the output.
curl_setopt($ch, CURLOPT_HEADER, false);

// TRUE to return the transfer as a string of the return value of curl_exec() instead of outputting it out directly.
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

// TRUE to follow any "Location: " header that the server sends as part of the HTTP header (note this is recursive, PHP will follow as many "Location: " headers that it is sent, unless CURLOPT_MAXREDIRS is set).
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

// The maximum amount of HTTP redirections to follow. Use this option alongside CURLOPT_FOLLOWLOCATION.
curl_setopt($ch, CURLOPT_MAXREDIRS, 10);

// grab URL and pass it to the output variable
$output = curl_exec($ch);

// close cURL resource, and free up system resources
curl_close($ch);

// Print the output from our variable to the browser
print_r($output);

The above code handles the URL redirection issue, but it doesn't deal with cookies (your localhost URL seems to be dealing with cookies). If you wish to deal with cookies from the cURL resource, then you may have to give the following cURL options a look: CURLOPT_COOKIE CURLOPT_COOKIEFILE CURLOPT_COOKIEJAR

For further details please follow the following link: http://docs.php.net/function.curl-setopt

like image 43
Omranic Avatar answered Sep 30 '22 12:09

Omranic