Answer
DI containers use reflection caching, lazy loading, compiled containers, and autowiring rules. They reduce runtime reflection calls and speed up object graph construction.
Quick Answer
Advanced DI containers (Laravel, Symfony) use reflection to inspect constructor parameters and auto-resolve dependencies. They cache reflection results. Use lazy loading (proxy objects) for expensive services not always needed. Bind interfaces to concrete classes. Use contextual binding for different implementations per caller. Benchmark container overhead - some use code generation to avoid runtime reflection.
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SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ