多维数组PHP-JSON
问题描述：
如何在PHP中使用json_encode()创建一个数组，其结构如下:
How to create an array in PHP that with json_encode() becomes a thing with following structure:
Array(
[1] => Array(
[id] => 1
[data] => 45
)
[2] => Array(
[id] => 3
[data] => 54
)
);
答
尝试如下操作:
//initialize array
$myArray = array();
//set up the nested associative arrays using literal array notation
$firstArray = array("id" => 1, "data" => 45);
$secondArray = array("id" => 3, "data" => 54);
//push items onto main array with bracket notation (this will result in numbered indexes)
$myArray[] = $firstArray;
$myArray[] = $secondArray;
//convert to json
$json = json_encode($myArray);