What are the limitations of setting cookies on a different domain using cURL in PHP?

When using cURL in PHP to make requests to a different domain, setting cookies on that domain may not work due to the Same-Origin Policy. This policy restricts a web page from making requests to a different domain than the one it originated from. To work around this limitation, you can manually set the cookies in the cURL request headers. 

<?php
$ch = curl_init();
$url = 'https://example.com';
$cookie = 'CookieName=CookieValue';

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Cookie: ' . $cookie));

$response = curl_exec($ch);

if($response === false){
    echo 'cURL error: ' . curl_error($ch);
}

curl_close($ch);

Keywords

cookies cURL limitations different domain PHP

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