http_response_code
PHP 5 >= 5.4.0, PHP 7, PHP 8
http_response_code - Get or Set the HTTP response code
Example #1 Using http_response_code in a web server environment
Result: int(200)
int(404)
Example #2 Using http_response_code in a CLI environment
Result: bool(false)
bool(true)
int(201)