[php-src] Issue #10387: can we make curl_close() write CURLOPT_COOKIEJAR again?

Issue: https://github.com/php/php-src/issues/10387 Author: divinity76 ### Description The following code: ```php <?php declare(strict_types=1); $ch = curl_init(); $cookiefile_handle = tmpfile(); $cookiefile = stream_get_meta_data($cookiefile_handle)['uri']; curl_setopt_array($ch, array( CURLOPT_COOKIEFILE => $cookiefile, CURLOPT_COOKIEJAR => $cookiefile, CURLOPT_WRITEFUNCTION => function ($ch, $str) { // echo $str; return strlen($str); }, )); curl_setopt($ch, CURLOPT_URL, "https://example.com/"); curl_exec($ch); var_dump(file_get_contents($cookiefile)); curl_close($ch); var_dump(file_get_contents($cookiefile)); ``` will, prior to PHP8.0.0 result in: ``` $ php7.4 test.php string(0) "" string(131) "# Netscape HTTP Cookie File # https://curl.se/docs/http-cookies.html # This file was generated by libcurl! Edit at your own risk. ``` and in >=8.0.0 result in ``` $ php8.2 test.php string(0) "" string(0) "" ``` which breaks scripts relying on curl_close() writing to CURLOPT_COOKIEJAR - either we should make curl_close write to COOKIEJAR again, or we should at least add a note to https://www.php.net/manual/en/migration80.incompatible.php that you can no longer rely on curl_close to write to COOKIEJAR. ### PHP Version PHP 8.0.0 ### Operating System _No response_