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@ 2018-09-25T08:53:17Z

<?php

$arr1 = array(
    array('date'=>"2018-06-23",'size'=>"L",'type'=>"shoes",'value_one'=>"66"),
    array('date'=>"2018-06-23",'size'=>"XL",'type'=>"shirt",'value_one'=>"43"),
    array('date'=>"2018-06-23",'size'=>"M",'type'=>"Bag",'value_one'=>"23")
);
$arr2 = array(
    array('date'=>"2018-06-23",'size'=>"L",'type'=>"shoes",'value_two'=>"28"),
    array('date'=>"2018-06-23",'size'=>"XL",'type'=>"shirt",'value_two'=>"56"),
    array('date'=>"2018-06-23",'size'=>"M",'type'=>"Bag",'value_two'=>"14"),
    array('date'=>"2018-06-23",'size'=>"S",'type'=>"Cap",'value_two'=>"29")
);

$final = $arr1;
foreach ($arr2 as $value) {
    $flag = 0;
    foreach ($final as $key => $data) {
        if ($data['date']===$value['date'] && $data['size']===$value['size'] && $data['type']===$value['type']) {
            $final[$key]['value_two'] = $value['value_two'];
            $flag = 1;
            break;
        }
    }
    if ($flag === 0) {
        array_push($final, $value);
    }
}
echo "<pre>";
print_r($final);

Output for git.master, git.master_jit, rfc.property-hooks: <pre>Array ( [0] => Array ( [date] => 2018-06-23 [size] => L [type] => shoes [value_one] => 66 [value_two] => 28 ) [1] => Array ( [date] => 2018-06-23 [size] => XL [type] => shirt [value_one] => 43 [value_two] => 56 ) [2] => Array ( [date] => 2018-06-23 [size] => M [type] => Bag [value_one] => 23 [value_two] => 14 ) [3] => Array ( [date] => 2018-06-23 [size] => S [type] => Cap [value_two] => 29 ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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