您不应使用echo，因为它是一个数组。使用print_r或var_dump即可。

you should not use echo because it is an array. use print_r or var_dump .it works fine

$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
print_r(json_decode($json, true));

输出：

Array
(
   [a] => 1
   [b] => 2
   [c] => 3
   [d] => 4
   [e] => 5
)