What does swoole fatal error mean?

swoole What is the fatal error?

Capture fatal errors during Server runtime

Once a fatal error occurs during Server runtime, the client connection will not be able to receive a response. For example, a web server should send an HTTP 500 error message to the client if there is a fatal error.

In PHP, fatal errors can be captured through register_shutdown_function error_get_last 2 functions and the error information is sent to the client connection. The specific code examples are as follows:

register_shutdown_function('handleFatal');
function handleFatal()
{
    $error = error_get_last();
    switch ($error['type'] ?? null) {
        case E_ERROR :
        case E_PARSE :
        case E_CORE_ERROR :
        case E_COMPILE_ERROR :
            $message = $error['message'] . PHP_EOL;
            if (isset($_SERVER['REQUEST_URI'])) {
                $message .= '[QUERY] ' . $_SERVER['REQUEST_URI'];
            }
            // log or send:
            // error_log($message);
            // $server->send($fd, $message);
            break;
    }
}

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