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PHP tests

phpcb (php code benchmark)

phpcb is a very simple and very lightweight tool for speed benchmarking of various little pieces of PHP code, written in PHP, of course.

Why

phpcb is meant to be used in those situations when there are multiple ways of how to do something - and you know all will have the exact same result - but you just can't decide which would ultimately be the best (meaning "fastest") to use.

Requirements

  • PHP 7.4+
  • BCMath Arbitrary Precision Mathematics library for PHP; shouldn't be a problem, since it is commonly shipped with PHP itself.

Installation

composer require --dev smuuf/-hpcb

Usage

Write your microbenchmarks in a some file. For example mymicrobench.php (here placed in phpcb's root directory, so it's clear we rquire Composer's autoload file from correct place):

<?php

require __DIR__ . '/../vendor/autoload.php';
$bench = new \Smuuf\Phpcb\PhpBenchmark;

const COUNT = 100;

$bench->addBench(function() {
	for ($i = 1; $i <= COUNT; $i++) {}
});

$bench->addBench(function() {
	for ($i = COUNT; $i > 0; $i--) {}
});

$bench->addBench(function() {
	for ($i = COUNT; $i--;) {}
});

$bench->addBench(function() {
	for ($i = -COUNT; $i++;) {}
});

$bench->run();

And then run it:

$ php ./mymicrobench.php

And observe results:

PHP Code Benchmark (phpcb)
█ PHP 7.4.27

Engine used: Chaotic Engine
Total time: 1.3220 sec
Iterations: 1 000 000

██ 2. Score: 100.00, 0.2660 sec
┌
│ $bench->addBench(function() {
│       for ($i = COUNT; $i > 0; $i--) {}
│ });
└

██ 1. Score: 86.54, 0.3074 sec, 1.16x slower
┌
│ $bench->addBench(function() {
│       for ($i = 1; $i <= COUNT; $i++) {}
│ });
└

██ 4. Score: 71.13, 0.3740 sec, 1.41x slower
┌
│ $bench->addBench(function() {
│       for ($i = -COUNT; $i++;) {}
│ });
└

██ 3. Score: 71.02, 0.3746 sec, 1.41x slower
┌
│ $bench->addBench(function() {
│       for ($i = COUNT; $i--;) {}
│ });
└