[ cURL ] Basics

When using cURL with PHP, you can automate alot of operations easily.

- Basic cURL:


<?php

    $ch = curl_init('http://www.target.com'); // the target

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // return the page

    $result = curl_exec ($ch); // executing the cURL

    curl_close ($ch); // Closing connection



echo $result;

?> 

 


that code would get the source code of target.com, and echo it.

- Post via cURL:





<?php



$data = "field_name=field_value&submit_value=submit";



    $ch = curl_init('http://www.target.com'); // the target

    curl_setopt ($ch, CURLOPT_POST, 1); // telling cURl to POST

    curl_setopt ($ch, CURLOPT_POSTFIELDS, $data);

    curl_exec ($ch); // executing the cURL

    curl_close ($ch); // Closing connection



?> 




Simple posting via cURL.

- Using cookies with cURL:

( You will find this usefull when you are trying to do something that needs a login and a cookie stored )






<?php



    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, 'http://www.target.com');

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_COOKIEJAR, '/path/to/cookie.txt');

    curl_setopt($ch, CURLOPT_COOKIEFILE, '/path/to/cookie.txt');

    $result = curl_exec($ch);

    curl_close($ch);



echo $result;



?>

 



ofcourse you might need to post first into the login form, to get the cookies stored, then you can do other things with you being logged in.

- Extra info:

you can set `user-agent`, `referrer`, `headers`.. using cURL:






<?php

// set user-agent to DarkMindZ

curl_setopt($ch, CURLOPT_USERAGENT, 'DarkMindZ');

?>

 



<?php

// set referrer darkmindz.com

 curl_setopt($ch, CURLOPT_REFERER, "http://www.darkmindz.com");

?>




- Making life easier:

This function will help you alot in making things go easy:






<?php

function curl_it($method, $target, $post_var) 

{

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $target);

    curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_COOKIEJAR, '/path/to/cookie.txt');

    curl_setopt($ch, CURLOPT_COOKIEFILE, '/path/to/cookie.txt');



    if ($method == 'POST') {

        curl_setopt($ch, CURLOPT_POST, 1);

        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_var);

    }



    $result = curl_exec($ch);

    curl_close($ch);

}



 // usage:



curl_it('', 'http://www.darkmindz.com'); // get darkmindz.com homepage



curl_it('POST', 'http://www.darkmindz.com', 'user=dude&pass=dude2'); // login using dude:dude2



?>




By RoMeO






Published: 10:24:40 24.04.2008 by commander



Source
http://www.darkmindz.com