src/Debug/Utilities.php
public static function requestId()
    {
        return \hash(
            'crc32b',
            (isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : 'terminal')
                .(isset($_SERVER['REQUEST_TIME_FLOAT']) ? $_SERVER['REQUEST_TIME_FLOAT'] : $_SERVER['REQUEST_TIME'])
                .(isset($_SERVER['REMOTE_PORT']) ? $_SERVER['REMOTE_PORT'] : '')
        );
    }
public static function requestId()
    {
        return \hash(
            'crc32b',
            (isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : 'terminal')
                .(isset($_SERVER['REQUEST_TIME_FLOAT']) ? $_SERVER['REQUEST_TIME_FLOAT'] : $_SERVER['REQUEST_TIME'])
                .(isset($_SERVER['REMOTE_PORT']) ? $_SERVER['REMOTE_PORT'] : '')
        );
    }
Generate a unique request id

@return string