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@ 2021-12-25T12:57:10Z

<?php

$array1 = array(
    0 => array(
            2 => array(
                    "type" => 1,
                    "score" => 10,
                ),
        ),
    1 => array(
            2 => array(
                    "type" => 2,
                    "score" => 5,
                ),
        ),
    2 => array(
            2 => array(
                    "type" => 3,
                    "score" => 4,
                ),
        ),
    3 => array(
            2 => array(
                    "type" => 4,
                    "score" => 60,
                ),
        ),
    4 => array(
            1 => array(
                    "type" => 1,
                    "score" => 5,
                ),
        ),
    );

$array2 = array(0 => 2, 1 => 1);

$array3 = array(
    2 => array(
            "score" => 79
        ),
    1 => array(
            "score" => 5
        ),
    );    

foreach( $array1 as $array1x ){
    $key=key($array1x);
    if( in_array($key, $array2) ){
        $this_score = $array1x[$key]['score'];
        $cum_score = isset($newarray[$key]['score']) ? $newarray[$key]['score'] : 0;
        $newarray[$key]['score'] = $cum_score + $this_score;
    }
}
print_r($newarray);

Output for 7.3.13 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Array ( [2] => Array ( [score] => 79 ) [1] => Array ( [score] => 5 ) )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [2] => Array ( [score] => 79 ) [1] => Array ( [score] => 5 ) )

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152.27 ms | 402 KiB | 143 Q