JSON編碼與[]

Question

我似乎無法讓我的json_encode包括括號.. 任何幫助嗎？

我的代碼是：

$th = json_encode(array("4" => "four", "8" => "eight")); 
echo $th; 

，輸出是：

{"4":"four","8":"eight","9":"\n"} 

我需要發送給API的輸出是：

[{"4":"four","8":"eight","9":"\n"}] 

如何獲取JSON數組中的括號？ 謝謝！

Answer 1

使用此

$th = json_encode(array(array("4" => "four", "8" => "eight", "9" => "\n"))); 

Answer 2

你應該做的是這樣的：

$th = json_encode(array(array("4" => "four", "8" => "eight")));