How to get cookies from curl into a variable in PHP ?

The cURL standing for Client URL refers to a library for transferring data using various protocols supporting cookies, HTTP, FTP, IMAP, POP3, HTTPS (with SSL Certification), etc. This example will illustrate how to get cookies from a PHP cURL into a variable. The functions provide an option to set a callback that will be called for each response header line. The function will receive the curl object and a string with the header line. Along with their purpose, required for this example are described below:

  • curl_init(): Used to initialize a curl object.
  • curl_setopt(object, parameter, value): Used to set the value of parameter for a certain curl object.
  • curl_exec(object): Used to execute the current curl session. Called after setting the values for desired curl parameters.
  • preg_match_all(regExp, inputVariable, OutputVariable): Used to perform a global regular expression check.

Example 1: This example illustrates how to fetch cookies from www.amazon.com

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
   
// URL to fetch cookies
   
// Initialize cURL object
$curlObj = curl_init();
   
/* setting values to required cURL parameters.
CURLOPT_URL is used to set the URL to fetch 
CURLOPT_RETURNTRANSFER is enabled curl
response to be saved in a variable 
CURLOPT_HEADER enables curl to include
protocol header CURLOPT_SSL_VERIFYPEER
enables to fetch SSL encrypted HTTPS request.*/
curl_setopt($curlObj,  CURLOPT_URL,  $url);
curl_setopt($curlObj,  CURLOPT_RETURNTRANSFER,  1);
curl_setopt($curlObj,  CURLOPT_HEADER,  1);
curl_setopt($curlObj,  CURLOPT_SSL_VERIFYPEER,  false);
$result = curl_exec($curlObj);
   
// Matching the response to extract cookie value
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi',
          $result$match_found);
   
$cookies = array();
foreach($match_found[1] as $item) {
    parse_str($item$cookie);
    $cookies = array_merge($cookies$cookie);
}
   
// Printing cookie data
print_r( $cookies);
   
// Closing curl object instance
curl_close($curlObj);
?>

chevron_right


Note: Each website has its own format of storing cookies according to its requirements. Therefore, any specific format is not available for cookies.
Output:

Example 2: This example illustrates how to fetch cookies from www.google.com

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
$curlObj = curl_init();
  
curl_setopt($curlObj, CURLOPT_URL, $url);
curl_setopt($curlObj, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curlObj, CURLOPT_HEADER, 1);
curl_setopt($curlObj, CURLOPT_SSL_VERIFYPEER, false);
$result = curl_exec($curlObj);
      
preg_match_all('/^Set-Cookie:\s*([^;]*)/mi',
                $result, $match_found);
$cookies = array();
  
foreach($match_found[1] as $item) {
    parse_str($item, $cookie);
    $cookies = array_merge($cookies, $cookie);
}
      
print_r( $cookies);
curl_close($curlObj);
?>

chevron_right


Output:

Note: Personal data is blurred out.




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.