NoiseByNorthwest/php-spx

Health v2 · maintenance only

Adoption not part of the score

2629 stars · 104 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

SPX is a PHP profiling extension written in C that collects function-level performance metrics (time, memory, I/O) with full call stack context. It ships with a built-in web UI featuring interactive timeline, flat profile, and flamegraph visualizations.

Use cases

• profile slow PHP scripts
• find performance bottlenecks in PHP web requests
• generate flamegraphs for PHP applications
• profile long-running PHP CLI scripts
• analyze memory usage of PHP code
• trace millions of PHP function calls with a timeline
• self-hosted PHP profiling without SaaS

When to choose

• you need zero-instrumentation profiling of PHP apps via an environment variable or web toggle
• you want timeline or flamegraph analysis that preserves full call stacks (unlike Xhprof)
• you require profiling data to stay on your own infrastructure
• you need to profile both web requests and CLI scripts

When to avoid

• you need profiling on platforms other than GNU/Linux, macOS, or FreeBSD
• you need continuous production APM with alerting and dashboards rather than on-demand profiling
• your PHP version is outside 5.4-8.5 or your architecture is not x86-64/ARM64

Facets

plugin · maturity active

monitoring benchmarking data-visualization developer-tools performance developer-tools web-development data-visualization php cli profiler php-extension flamegraph tracing statistical-profiling web-ui self-hosted linux macos web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="NoiseByNorthwest/php-spx")