CURLOPT_HEADERFUNCTION

Constant

CURLOPT_HEADERFUNCTION is one of the accepted parameters for curl_setopt parameter #2.

CURLOPT_HEADERFUNCTION — A callable with the following signature:

 The callback should return the number of bytes written.
 Available as of cURL 7.7.2.

PHP 5

PHP 7

PHP 8.0

PHP 8.1-8.2

PHP 8.3

PHP 8.4

PHP 8.5

PHP 8.6

CURLOPT_HEADERFUNCTION = 20079;

`CURLOPT_HEADERFUNCTION` Constant Availability