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I have a server with php 5.4 and needed to upgrade to php 5.6 in order to run cake 3. It turns out that the client has a pure php system running in this old version and is now afraid to do this upgrade and end up stopping things already existing.
Does anyone know if the change from 5.4 to 5.6 is too drastic, how likely it is to stop what exists today?
Thank you in advance
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You can keep the version of PHP 5.4 and the applications will not have problems running in version 5.6. And vice versa.
the development environment can be PHP 5.4 or PH|P 5.6 and the production environment can be from version PHP 5.3 to version PHP 5.6 clear except applications that use extinct features for newer or newer versions for older versions.
But you can also run two different versions of php on the same server if you prefer.
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