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@ 2014-03-05T04:46:30Z

<?php
function compareCombinations($toFind, $toTry){
    $nb = 4;
        $goodPlace = 0;
        $wrongPlace = 0;

        $toFind = str_split($toFind);
        $toTry = str_split($toTry);

    var_dump($toFind, $toTry);

        //Look for good places
        for($i = 0; $i < $nb; $i++){
            if($toFind[$i] === $toTry[$i]){
                $goodPlace++;
            }
        }

        //Look for wrong places
        for($i = 0; $i < $nb; $i++){
            for($j = 0; $j < $nb; $j++){
                if($i == $j){
                    continue;
                }
				if($toTry[$i] === $toFind[$j]){
                    $wrongPlace++;
                }
            }
        }

        return array(
            'good' => $goodPlace,
            'wrong' => $wrongPlace,
            'absent' => $nb - $goodPlace - $wrongPlace
        );
    }

foreach(array('0000' => '0001') as $find => $try){
    $r = compareCombinations($find,$try);
    var_dump(array(
        'find' => $find,
        'try' => $try
        ) + $r);
}

Output for git.master, git.master_jit, rfc.property-hooks: array(4) { [0]=> string(1) "0" [1]=> string(1) "0" [2]=> string(1) "0" [3]=> string(1) "0" } array(4) { [0]=> string(1) "0" [1]=> string(1) "0" [2]=> string(1) "0" [3]=> string(1) "1" } array(5) { ["find"]=> string(4) "0000" ["try"]=> string(4) "0001" ["good"]=> int(3) ["wrong"]=> int(9) ["absent"]=> int(-8) }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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