What is www.phpbenchmarks.com?
You will find lot of benchmarks for PHP frameworks and template engines.
You can compare results between Apache Bench and Siege, PHP 5.6 to 7.3 and versions of your favorites PHP code.
It's data for Rest API benchmark.
You can find how we benchmark it here.
You will need this repository for framework REST API benchmark.
You can retrieve data to serialize with PhpBenchmarksRestData\Service::getUsers().