javascript array generated by php

<script type='text/javascript'>
<?php
$php_array = array('abc','def','ghi');
$js_array = json_encode($php_array);
echo "var javascript_array = ". $js_array . ";\n";
?>
</script>
<?php
$query = $pdo->query("SELECT name,CountryCode FROM city where CountryCode  REGEXP '^[BR]'  order by Co>

$stack = array();
while ($row = $query->fetch()) { echo "<span class='city ".$row['CountryCode']."'>".$row['name']."</sp>
array_push($stack, $row['CountryCode'].",".$row['name']);
}

//$stmt = $pdo->query('SELECT Name FROM city'); while ($row = $stmt->fetch()) { echo $row['name'] . "\>
//print_r($stack);
print("<script>");
print("var asa = ".json_encode($stack));
print("</script>");
?>