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@ 2020-12-01T19:21:22Z

<?php

function getDestroyChance($death_stars_number, $diameter) {
    $death_stars_vars = array(0, 0, 0, 10, 10);
    $diameter_vars = array(-20, -80, 100, 0, 15);
    $diameter_exp_const = 18000;
    $offset = 30;
    $death_stars_factor = 0.0;
    for ($i = 0; $i < sizeof($death_stars_vars); $i++){
        $death_stars_factor += $death_stars_vars[$i] * pow(log10($death_stars_number), $i);
        
    }
    
    $diameter_factor = 0.0;
    for ($i = 0; $i < sizeof($diameter_vars); $i++) {
        $diameter_factor += $diameter_vars[$i] * pow(exp($diameter / $diameter_exp_const), $i);
    }
            
    $chance = 100 - $death_stars_factor / $diameter_factor + $offset;
    $chance = min($chance, 100);
    $chance = max($chance, 10);
    return round($chance);
}


$res = getDestroyChance(3000000, 2500);

var_dump($res);

Output for git.master, git.master_jit, rfc.property-hooks: float(10)

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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