The PHP worlds is moving fast. Since the acceptance of PSR-7, see http://www.php-fig.org/psr/psr-7/, the door opened for a entire new level of compatiblity between PHP code, both between libraries and frameworks.

This talk with give an overview about the state of HTTP integration into PHP, provide a high level overview about the tools before PSR-7 and then describe what IS already possible with PSR-7 based tools, and will be possible in some point in the future