wp-includes/Requests/src/Proxy/Http.php:114Set cURL parameters before the data is sent
$handleresource|CurlHandle public function curl_before_send(&$handle) { curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP); curl_setopt($handle, CURLOPT_PROXY, $this->proxy); if ($this->use_authentication) { curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY); curl_setopt($handle, CURLOPT_PROXYUSERPWD, $this->get_auth_string()); } }Introduced in 1.6. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Requests/src/Proxy/Http.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.