In this way, your vhost is setup to go directly to legacy stack, and developers will see almost no differences.
In this setup you can not use any of the new Symfony and or Platform features as the , and legacy bundle ( "bridge") is will not be used used for integrating the two system together. So this is more of a first step toward eZ Platform, getting your legacy code to work with eZ Publish 5.x.
If you choose this because of performance concerns setting up a combined setup, recommendation is to move to PHP 7.x when moving to Platform setup which will result in a overall faster setup then a pure legacy setup on PHP 5.x.
Anchor Usingezpublish5.0throughthelegacystackbutrelyingonthenewcontrollerandnewtemplatesystemaswellasthenewkernel. Usingezpublish5.0throughthelegacystackbutrelyingonthenewcontrollerandnewtemplatesystemaswellasthenewkernel.