PHP: Count Duplicates and Remove Duplicate Rows - php

Question

I have a mysql database of visitor IPs, and I'm trying to create an HTML table that shows how many of those IPs are from X country. I can get the script to show which country the visitor is from, but I cannot seem to find a way to show it in groups rather than line by line.
For example, currently I'm getting:
Country | Visitors
------------------
US | Array
UK | Array
UK | Array
UK | Array
US | Array
MX | Array
MX | Array
What I want is:
Country | Visitors
------------------
US | 2 Visitors
UK | 3 Visitors
MX | 2 Visitors
I've tried array_count_values, but it still lists every visitor by line and assigns a value of "Array" to every line.
The IPs are in a database and the script pulls the IPs and then assigns the IP a Country Code value based on the data in a separate file.
Here's what I hacked up with my amateur skills. If there's a better way to accomplish this, suggestions welcome!
require_once("geoip.inc");
$gi = geoip_open("GeoIP.dat",GEOIP_STANDARD);
include_once($_SERVER['DOCUMENT_ROOT'] . 'connect.php');
/* Performing SQL query */
$data = mysql_query("SELECT * FROM the_ips LIMIT 100")
or die(mysql_error());
echo "<table>";
echo "<td><strong>Country</strong></td><td><strong>Visitors</strong></td></tr>";
while($info = mysql_fetch_array( $data ))
{
$ip = $info['ip_address'];
$country_code = geoip_country_code_by_addr($gi, $ip);
$countrylist = array($country_code);
$frequency = array_count_values($countrylist);
echo "<tr><td style='width: 100px;'>".$country_code."</td><td style='width: 100px;'>".$frequency."</td></tr>";
}
echo "</table>";
geoip_close($gi);

Answer 1

SELECT
Count(Distinct country) As country_number
, country
FROM the_ips
GROUP BY country
LIMIT 100
try this for a start

Answer 2

For anyone else looking for the exact method to remove duplicate entries, here it is. Assuming that your duplicates are in the 'name' column. Just change the 'name' and 'id' to your tables respective column names.
// Select duplicate entries
$result = mysql_query("SELECT id, name
FROM tble_name
GROUP BY name
HAVING COUNT(*) > 1");
// Loop through the results
while($rows=mysql_fetch_assoc($result)){
// Delete each row by id
mysql_query("DELETE FROM tble_name
WHERE id = ".$rows['id']."");
}
Note: This will remove the selected results for good, be sure to backup your data before messing with any DELETE queries if you're uncertain.
I hope this helps :)