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@ 2020-01-30T12:55:16Z

<?php

$data = [["label" => "Ai", "male" => 0, "female"=>10, ],   ["label" => "Bi", "male" => 0, "female"=>20, ],   ["label" => "Ci", "male" => 10, "female"=>20, ],]; 
//$minmax = 'min';
//$gen = 'male';

function getMinMaxGen($data,$minmax,$gen){
    
    $res = ['value' => 0,'sets' => []];
    
    if(in_array($minmax,['min','max'])){
        $arcol = array_column($data,$gen);
        $res['value'] = $minmax($arcol);
    }
    
    if(in_array($gen,['male','female'])){
        foreach($data as $person){
            if ($person[$gen] === $res['value']) $res['sets'][] = ['label' => $person['label'], "$gen" => $person[$gen]];
        }
    } 
    return $res;
}

$result = getMinMaxGen($data,'max','female');
print_r($result);
//print_r(getMinMaxGen($data,'min','female'));
//print_r(getMinMaxGen($data,'max','male'));
//print_r(getMinMaxGen($data,'min','male'));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [value] => 20 [sets] => Array ( [0] => Array ( [label] => Bi [female] => 20 ) [1] => Array ( [label] => Ci [female] => 20 ) ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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