encode and decode json and php data

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PHP

JSON

i have a page call json_1.php where the code is
<?php



mysql_connect("localhost","root","root") or die("NOT CONNECTED WITH LOCALHOST");
mysql_select_db("tems");


$sql = mysql_query("SELECT * FROM prm_country");
while($row = mysql_fetch_assoc($sql)):

$arr[] = $row;

endwhile;

echo json_encode($arr);


?>


i am fetching data from next page call get_json.php
<?php



$json = file_get_contents("json_1.php");
$v = json_decode($json);

var_dump($v);

?>
But i cant fetch data from json_1.php