A succinct parallel concurrency API for PHP 8

Documentation

Documentation can be found in the PHP manual: https://php.net/parallel

Requirements and Installation

Hello World

<?php
$runtime = new \parallel\Runtime();
$future = $runtime->run(function(){
    for ($i = 0; $i < 500; $i++)
        echo "*";
    return "easy";
});
for ($i = 0; $i < 500; $i++) {
    echo ".";
}
printf("\nUsing \\parallel\\Runtime is %s\n", $future->value());

This may output something like (output abbreviated):

.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*
Using \parallel\Runtime is easy

Development

See CONTRIBUTING.md for guidelines on contribution and development (and debugging).