Online PHP editor | rfc for 4ok0u

@ 2020-07-04T21:44:18Z

<?php

$array1= [
    [
    "month1" => "January",
    "2020cs" => 84,
    "2020as" => 500,
    "2019cs" => 17,
    "2019as" => 500,
    ],
    [
    "month1" => "February",
    "2020cs" => 54,
    "2020as" => 200,
    "2019cs" => 12,
    "2019as" => 1000,
    ],
    [
    "month1" => "April",
    "2020cs" => 4,
    "2020as" => 100,
    "2019cs" => 12,
    "2019as" => 1400,
    ],
    [
    "month1" => "November",
    "2020cs" => 0,
    "2020as" => 0,
    "2019cs" => 7,
    "2019as" => 200,
    ],
];

$array2= [
    [
    "month1" => "January",
    "2020cr" => 13,
    "2020ar" => 300,
    "2019cr" => 0,
    "2019ar" => 0,
    ],
    [
    "month1" => "March",
    "2020cr" => 1,
    "2020ar" => 100,
    "2019cr" => 0,
    "2019ar" => 0,
    ],
    [
    "month1" => "November",
    "2020cr" => 0,
    "2020ar" => 0,
    "2019cr" => 1,
    "2019ar" => 800,
    ],
    [
    "month1" => "December",
    "2020cr" => 0,
    "2020ar" => 0,
    "2019cr" => 2,
    "2019ar" => 500,
    ],
];
// top-level array from indexed to associative (name of month)
$array1 = rekey($array1);
$array2 = rekey($array2);

function rekey(array $arr = []): array
{
    foreach ($arr as $key => $record) {
        $arr[$record['month1']] = $arr[$key]; // indexed to name of month
        unset($arr[$key]);
    }
    return $arr;
}
// run the merge
$result = array_merge_recursive($array1, $array2);

// clean up double entries key 'month1'
foreach($result as $key => &$value) {
    if(is_array($value['month1'])) $value['month1'] = $value['month1'][0];
}

// sort result set
$months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
foreach($result as $key0 => $value0) {
    foreach($months as $key1 => $value1) {
        if($key0 === $value1) {
            $result[$key1] = $result[$key0]; // set index based on month 0-11
            unset($result[$key0]);
        }
    }
}
ksort($result);

print_r(array_values($result));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => Array ( [month1] => January [2020cs] => 84 [2020as] => 500 [2019cs] => 17 [2019as] => 500 [2020cr] => 13 [2020ar] => 300 [2019cr] => 0 [2019ar] => 0 ) [1] => Array ( [month1] => February [2020cs] => 54 [2020as] => 200 [2019cs] => 12 [2019as] => 1000 ) [2] => Array ( [month1] => March [2020cr] => 1 [2020ar] => 100 [2019cr] => 0 [2019ar] => 0 ) [3] => Array ( [month1] => April [2020cs] => 4 [2020as] => 100 [2019cs] => 12 [2019as] => 1400 ) [4] => Array ( [month1] => November [2020cs] => 0 [2020as] => 0 [2019cs] => 7 [2019as] => 200 [2020cr] => 0 [2020ar] => 0 [2019cr] => 1 [2019ar] => 800 ) [5] => Array ( [month1] => December [2020cr] => 0 [2020ar] => 0 [2019cr] => 2 [2019ar] => 500 ) )

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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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