Modern PHP apps declare minimum versions — WooCommerce, Laravel plugins, and themes regularly bump requirements. HostStack exposes MultiPHP selectors where your plan allows.
Raise memory limits or timeouts cautiously; if you constantly max PHP workers, the sustainable fix is usually caching or VPS isolation rather than unlimited ini tweaks.
Document version changes before major WooCommerce nights — rollback paths beat heroic debugging at 3 a.m.