Question 356119 in PHP Question posted in
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Php shorthand for making an associative array whose keys and values are derived from the values of an array

Is there a shorthand for the following code:

$result = array_combine(array_map(fn($elem) => "key_$elem", $array), array_map(fn($elem) => "value_$elem", $array));

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I do not like the idea (from readability point of view) of having to use array map twice on the same array and then combining the intermediate results.

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  1. Chosen as BEST ANSWER
    0

    Thanks for the suggestions. However, I have reached a solution that I like more:

    $result = array_merge(...array_map(fn($elem) => ["key_$elem" => "value_$elem"], $array));

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  2. 0

    You can use array_reduce

    https://www.php.net/manual/en/function.array-reduce.php

    $result = array_reduce($array, fn ($carry, $item) => $carry + ["key_$item" => "value_$item"], []);

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  3. 0

    I’d just define simple function, like that:

    function array2map($a) {
    $r = []; foreach ($a as $v) $r['key_'.$v] = 'value_'.$v; return $r;
}

$result = array2map($array);
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