Best Application Performance Monitoring (APM) Software for Symfony

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Perfbase is a PHP performance monitoring and profiling tool built for developers who need to understand what their applications are actually doing at runtime. Perfbase supports PHP 7.4 through PHP 8.5 and works across the wider PHP ecosystem, including Laravel, Symfony, WordPress, custom PHP applications, Composer-based projects, APIs, queues, workers, cron jobs, and CLI scripts. It is not limited to a single framework or request lifecycle. Perfbase can help profile application code, framework internals, Composer packages, vendor libraries, middleware, service classes, templates, third-party SDKs, HTTP clients, background jobs, and other PHP code paths. Many PHP debugging tools stop at framework events, database queries, logs, or manually added spans. These are useful, but they often leave a large amount of execution time unexplained. A request may take over a second, while the database only accounts for a small fraction of that time. Perfbase helps fill that gap by capturing runtime-level PHP traces. Developers can inspect where time is being spent across methods, functions, library calls, loops, templates, middleware, queues, crons, and CLI processes. This makes Perfbase useful for diagnosing slow requests, finding expensive functions, investigating performance regressions, profiling background jobs, understanding third-party library overhead, and deciding whether a problem should be fixed in code before scaling infrastructure. Perfbase is designed for real-world PHP teams, including indie developers, agencies, SaaS companies, and businesses running production PHP systems.