phpunit/php-timer

php-timer is a tiny utility library that provides high-resolution timing for PHP scripts, originating from the PHPUnit ecosystem. It wraps PHP’s underlying timing functions to give consistent start/stop measurements even across different PHP versions and environments. The library’s API is intentionally small so you can drop it into tests, benchmarks, and command-line tools without overhead. Beyond raw seconds, it can format durations into human-readable strings, which is especially handy for reporting test suite performance. It supports multiple timers, letting you measure nested or labeled segments of code independently. Because it is dependency-light and thoroughly battle-tested through PHPUnit usage, it’s a reliable choice for profiling micro-benchmarks and long-running tasks alike.