漂亮的打印JSON输出

Question

这是我的代码，用于显示数据库中的JSON输出。

while ($row = mysql_fetch_array($result)) {
    $row_array['option_id'] = $row['option_id'] . "<br>"; 
    $row_array['option_name'] = $row['option_name'] . "<br>";  
    $row_array['option_value'] = $row['option_value']. "<br>";  
    $row_array['autoload'] = $row['autoload']. "<br><br>";
    //push the values in the array
    array_push($json_response, $row_array);
}
echo json_encode($json_response);

输出如下：

[{"option_id":"262
","option_name":"carl
","option_value":"manere
","autoload":" 

"},{"option_id":"263
","option_name":"John
","option_value":"John Smith
","autoload":" 

"},{"option_id":"265
","option_name":"James
","option_value":"James Doe
","autoload":" 

"},{"option_id":"266
","option_name":"Dwight
","option_value":"Dwight Howard
","autoload":" 

"}]

我想要输出就像这样。

[
  {
    "option_id": 262,
    "option_name": "carl",
    "option_value": "carl manere",
    "autoload": " "
  }, . . .etc

我该如何格式化呢？

Answer 1

<?php
echo json_encode($json_response);