phpspy: phpspy (Low-overhead sampling profiler for PHP 7) phpspy: phpspy: phpspy is a low-overhead sampling profiler for PHP 7. For now, phpspy: it works with Linux 3.2+ x86_64 non-ZTS PHP 7.0+ with CLI, Apache, phpspy: and FPM SAPIs. phpspy: phpspy: phpspy: phpspy: phpspy: phpspy: