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developer-roadmap/roadmaps/php/content/memory-management@bt7dK2PcOZ72B9HXPyMwL.md

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Memory Management

PHP allocates and frees memory automatically, but developers can influence it. The memory_limit directive in php.ini caps memory per request. Unset large variables with unset() when no longer needed. For long-running scripts or batch jobs, careful object lifecycle management prevents memory exhaustion.

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