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@ 2014-03-06T09:23:28Z

<?php
$a = json_decode('{"3":{"friend":45,"all":100},"2":{"friend":30,"all":50},"1":{"friend":25,"all":25}}');

$arr = array();
foreach ($a as $key => $value) {
    $arr[$key] = $value;
}
var_dump($arr);
$n = 3;
var_dump($arr[$n]);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
json_decode: documentation ( source)

preferences:dark modelive preview

40.15 ms | 402 KiB | 5 Q