如何数字索引数组转换为关联数组

Question

我有这个

{"1":{"name":"cat"},"2":{"name":"elephant"}} 

如何将其转化为

[{"name":"dog"},{"name":"cat"}] 

或将其转换为反之亦然

Answer 1

$arr = json_decode('{"1":{"name":"cat"},"2":{"name":"elephant"}}'); 
$result = array(); 
foreach($arr as $item) { 
    $data = ['name' => $item->name]; 
    $result[] = $data; 
} 

$json = json_encode($result); 
print_r($json);