我可以使用JSON从PHP服务器获取数据到Android应用程序吗？

I am not sure about understanding about JSON, PHP, and MySQL.

In my plan, I will create a web server and android application.The database server is MySQL. In my understanding, PHP can send data and encode it into a JSON array, how can I use this JSON array in my Android application?

Your question is difficult to understand.

It seems like you're asking how to send JSON data using PHP.

Use the PHP json_encode and json_decode functions to convert between JSON and PHP arrays.

To send a JSON string, first convert the array to JSON using json_encode(), then print the resulting string and exit the program.

<?php
$my_array = array('this'=>'is', 'just'=>'an', 'example'=>'array');

$json_string = json_encode($my_array);
print $json_string;
die;
?>

Hope that helps.

following is PHP code...

<?php
mysql_connect("host","username","password");
mysql_select_db("Deal");
$sql=mysql_query("select * from CITY where CITY_NAME like 'A%'");
while($row=mysql_fetch_assoc($sql))
$output[]=$row;
print(json_encode($output));
mysql_close();
?>

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