PHP Debugger is a new PHP extension forked from Xdebug that strips out everything except step debugging — no profiler, no code coverage, no tracing. Benchmarks show dramatically lower overhead when loaded but idle: up to 97% less than Xdebug (e.g., +12.9% vs +661.6% on a synthetic benchmark). It works as a drop-in replacement,
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# Near-Zero Idle Overhead# Drop-In Xdebug Replacement# Debug-Only Focus# New PHP Debugger-Specific API# Installation1 Comment
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