Question

php中关于json_encode的问题

var_dump(json_encode(array("Apple", "Banana", "Pear")));
输出：
string'["Apple","Banana","Pear"]'(length=25)
问题：
["Apple","Banana","Pear"]是json格式吗？为什么不是{"0":"Apple","1":"Banana","2":"Pear"}

Answer 1

是的，["Apple","Banana","Pear"]是json的数组格式
需要在php上改动：
var_dump(json_encode(array("Apple", "Banana", "Pear"), JSON_FORCE_OBJECT));

所选答案错误，有眼无珠

Answer 2

json格式中[]用于下标数组，{}用于键值数组
例如
var_dump(json_encode(array('0' => 'Apple')));
你看到的应该就是{"0":"Apple"}了