<?php
include ("php_includes/db_conx.php");
$sql = "SELECT sun_zodiac, mon_zodiac, tue_zodiac, wed_zodiac, thur_zodiac, fri_zodiac, sat_zodiac FROM horoscope WHERE zodiac_sign = 'Taurus' OR zodiac_sign = 'Virgo'OR zodiac_sign = 'Capricorn' LIMIT 0 , 30";
$result = mysqli_query($db_conx,$sql);
while($row = mysqli_fetch_array($result)) {
//Array is set up to capture values out the database by rows which will number 3.
$sunday_daily[] = $row['sun_zodiac'];
$monday_daily[] = $row['mon_zodiac'];
$tuesday_daily[] = $row['tue_zodiac'];
$wednesday_daily[] = $row['wed_zodiac'];
$thursday_daily[] = $row['thur_zodiac'];
$friday_daily[] = $row['fri_zodiac'];
$saturday_daily[] = $row['sat_zodiac'];
}
?>
<?php
//Values return fine using PHP
echo $sunday_daily[0] . "
";
echo $sunday_daily[1] . "
";
echo $sunday_daily[2] . "
";
?>
You forgot to echo everything in your script code 
[php]
echo ’';
[/php]