Online PHP editor | rfc for mkSng

@ 2018-10-31T15:21:00Z

<?php

$recipes = [
'cc' => [
    'in' => ['c' => 1],
    'out' => ['cc' => 2],
    'time' => 0.5,
    'terminal' => true,
    ],

'gc' => [
    'in' => ['cc' => 1.5, 'i' => 1,],
    'out' => ['gc' => 1],
    'time' => 0.5,
    'terminal' => false,
],

'rc' => [
    'in' => ['gc' => 2, 'p' => 2, 'cc' => 2],
    'out' => ['rc' => 1],
    'time' => 6,
    'terminal' => false,
],

'bc' => [
    'in' => ['gc' => 20, 'rc' => 2],
    'out' => ['bc' => 1],
    'time' => 10,
    'terminal' => false,
    ],
];

function solveFor($recipes, $type, $numAssemblers, $requirements = []) {
    if ( $recipes[$type]['terminal']) {
        foreach($recipes[$type]['in'] as $k => $v) {
            if (! array_key_exists($type, $requirements)) { $requirements[$type] = 0; }
            
            $perMinute = 60 / $recipes[$type]['time'];
            $requirements[$k] = $requirements[$k] + ($numAssemblers * $v * $perMinute);
            return $requirements;
        }
    } else {
        foreach($recipes[$type]['in'] as $k => $v) {
            $depReq = solveFor($recipes, $k, 1, $requirements);
            foreach ($depReq as $k2 => $v2) {
                $requirements[$k2] += $v2;
            }
        }
        
        return $requirements;
    }
        
        
}

print_r(  solveFor($recipes, 'cc', 4, [])  );

Output for git.master_jit, git.master, rfc.property-hooks: Warning: Undefined array key "c" in /in/mkSng on line 39 Array ( [cc] => 0 [c] => 480 )

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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
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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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