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PHP namespaces allow importing classes and creating aliases, but overusing these features leads to long import lists and confusing aliases that increase cognitive load. The recommended approach is to import parent namespace prefixes instead of individual classes, letting you reference classes relative to their namespace context. This reduces the number of imports, eliminates the need for aliases, and makes the origin of each class immediately visible. Concrete before/after diffs using Symfony demo application code illustrate the technique.

Avoiding imports and aliases in PHP

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