Simple Ajax Jquery script- How can I get information for each of the rows in the table?

Question

I\'m following a simple ajax>php>mysql example posted here http://openenergymonitor.org/emon/node/107

I can only display information from the first row. My table is

Answer 1

$result = mysql_query("SELECT * FROM $tableName");
$array = array(mysql_fetch_row($result));

// To store every row in the $array
while($row = mysql_fetch_row($result)) { 
    $array[] = $row; 
} 
echo json_encode($array);