PHP funkce header_register_callback()

Dostupnost ve verzích: PHP 4.0

Registers a function that will be called when PHP starts sending output. The callback is executed just after PHP prepares all headers to be sent,
and before any other output is sent, creating a window to manipulate the outgoing headers before being sent.

Parametry

Parametr	Datový typ	Výchozí hodnota	Poznámka
$callback	callable

Návratové hodnoty

bool

true on success or false on failure.

Další zdroje

https://www.php.net/manual/en/function.header-register-callback.php