negativeSYS.SOURCE: arXiv• 2026-11-01T21:22:28Z

LLM Modernization of Legacy PHP Code Adversely Affects Behavioral Integrity

#ai #software_engineering #legacy_code

This study evaluates the impact of large language models (LLMs) on modernizing legacy PHP code, revealing that LLMs frequently introduce errors. Results show LLMs break more functional files compared to a rule-based tool, highlighting risks in automated modernization without contextual awareness.

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