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marcoconsiglio/phprimes-generator
=================================

A PHP primes number generator originally created by Pol Dellaiera.

v2.0.0(4mo ago)04MITPHP

Since Jan 5Pushed 4mo agoCompare

[ Source](https://github.com/MarcoConsiglio/phprimes-generator)[ Packagist](https://packagist.org/packages/marcoconsiglio/phprimes-generator)[ RSS](/packages/marcoconsiglio-phprimes-generator/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (3)Dependencies (1)Versions (5)Used By (0)

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PHPrimes Generator
==================

[](#phprimes-generator)

A PHP primes number generator originally created by [*Pol Dellaiera*](https://github.com/drupol) in its [drupol/primes-bench](https://github.com/drupol/primes-bench) repo.

Installation
============

[](#installation)

```
composer require marcoconsiglio/phprimes-generator

```

Usage
=====

[](#usage)

`OptimusPrime` is the library endpoint to use the [`Prime3` class](https://github.com/drupol/primes-bench/blob/master/src/Primes3.php) which is the best performing prime number generator written by *Pol Dellaiera*.

Keep in mind that:

- the generator in question continues forever, so it is highly recommended to set a limit (by default it is the first 500 prime numbers);
- random access is not possible, like in `$primes[$i]`;
- if you rewind the iterator, it start over again.

```
use MarcoConsiglio\PHPrimesGenerator\OptimusPrime;

// Generate the first 5 prime numbers.
$primes = new OptimusPrime(5)->generate();
// For older PHP versions use this
// $primes = (new OptimusPrime(5))->generate();
foreach($primes as $number) {
    echo $number.PHP_EOL;
}
```

```
2
3
5
7
11

```

Integer safe iterator
---------------------

[](#integer-safe-iterator)

The `OptimusPrime` class uses an integer safe iterator which throws exception `MaximumIntegerIteratorValueReached` when PHP\_INT\_MAX + 1 value is reached.

```
use MarcoConsiglio\PHPrimesGenerator\OptimusPrime;

try {
    $primes = new OptimusPrime(PHP_MAX_INT)->generate();
    foreach($primes as $number) {
        echo $number.PHP_EOL;
    }
} catch (MaximumIntegerIteratorValueReached $e) {
    echo $e->getMessage();
}
```

Generate to file
----------------

[](#generate-to-file)

Do you rapidly need primes numbers on a text file? Uncomment the test method `OptimusPrimeTest::test_record_primes_numbers_to_file()`, set a `$limit` of your preference and launch the same test method with:

```
vendor/bin/phpunit --filter=test_record_primes_numbers_to_file
```

You will find your file in [`prime_numbers.txt`](prime_numbers.txt);

API documentation
=================

[](#api-documentation)

You can find API documentation in [`docs/html`](docs/html/index.html).

###  Health Score

32

—

LowBetter than 72% of packages

Maintenance77

Regular maintenance activity

Popularity3

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity37

Early-stage or recently created project

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~1 days

Total

3

Last Release

125d ago

Major Versions

v1.1.0 → v2.0.02026-01-06

### Community

Maintainers

![](https://www.gravatar.com/avatar/5fb36102dfc597a74e864afc65952e328f158bff88f21ad993c1d79c51c80133?d=identicon)[MarcoConsiglio](/maintainers/MarcoConsiglio)

---

Top Contributors

[![MarcoConsiglio](https://avatars.githubusercontent.com/u/39809954?v=4)](https://github.com/MarcoConsiglio "MarcoConsiglio (7 commits)")

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/marcoconsiglio-phprimes-generator/health.svg)

```
[![Health](https://phpackages.com/badges/marcoconsiglio-phprimes-generator/health.svg)](https://phpackages.com/packages/marcoconsiglio-phprimes-generator)
```

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