How to catch php errors with swoole

Once a fatal error occurs during the running of swoole_serverServer, the client connection will not be responded to.

For example, a web server, if there is a fatal error, an HTTP 500 error message should be sent to the client. (Recommended study: swoole video tutorial)

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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