android - Sending string arrays to php -

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i want send string array php json , retrieve there. 

string[] books = {"book1", "book2", "book3", "book4",..};

in json:

list<namevaluepair> namevaluepairs = new arraylist<namevaluepair>; namevaluepairs.add(new basicnamevaluepair("books", books)); httppost.setentity(new urlencodedformentity(namevaluepairs)); ...

in php side:

$books = $_post['books']; $result = json_decode($books);    // ok?

or can use below? 

$book1 = $result[0]; 

$jsonstring = '["xxx@gmail.com","yy@gmail.com","rr@gmail.com"]'; $arrayofyouremails=json_decode($jsonstring);

or

$jsonstring = "[\"xxx@gmail.com\",\"yy@gmail.com\",\"rr@gmail.com\"]"; $arrayofyouremails=json_decode($jsonstring);

and yes code right

$books = $_post['books']; $result = json_decode($books);

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