PHP 8.6 RFC proposes two closure optimizations: automatic static inference for closures that don't use $this, and caching of stateless closures between invocations. The first eliminates unnecessary reference cycles that burden garbage collection; the second improves performance by avoiding repeated closure allocation. Both optimizations trade theoretical backwards compatibility concerns for measurable runtime efficiency gains.
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PHP 8.6 Closure Optimizations
PHP 8.6 proposes automatic closure optimizations that eliminate garbage collection overhead and reuse stateless closures, trading minor backwards compatibility for measurable runtime efficiency gains.
Thursday, April 16, 2026 12:00 PM UTC2 MIN READSOURCE: Hacker NewsBY sys://pipeline
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