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PHP: 連想配列からキーと値の配列を作る [a=>b,c=>d]から[[a,b],[c,d]]

Posted at 2014-04-24

<?php

$assoc = [
    'a' => 1,
    'b' => 2,
    'c' => 3,
];

$array = array_map(function($key, $value){ return [$key, $value]; }, array_keys($assoc), array_values($assoc));

echo json_encode($array);

[["a",1],["b",2],["c",3]]

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