$indexArr = ["PHP","Java","Golang"];
var_dump($indexArr);
以上打印输出
array(3) {
[0]=>
string(3) "PHP..."
[1]=>
string(4) "Java"
[2]=>
string(6) "Golang"
}
键值是从0开始的一个索引
索引数组转为json后是数组
$indexArr =...["PHP","Java","Golang"];
echo json_encode($indexArr);
以上输出
["PHP","Java","Golang"]
数组转为json会是数组形式的...后是对象
$mapArr = ["name" => "Tinywan","age" => 24, "schoole" => "GanSu"];
echo json_encode($mapArr);
输出...{"name":"Tinywan","age":24,"schoole":"GanSu"}
数组转为json会是对象形式的。