Displaying multiple map markers in Google Maps API

Question

working on some perl code in a .cgi file that loops through a hash list of IP addresses, then runs each IP address through a web service that returns that latitude and longitude

Answer 1

Obviously you need to save all the latitudes and longitudes, rather than just print them. I'd use 2 globals, outside your unless($result){

my $lats = '';
my $lons = '';
....
$lats .= $latitude . ',';
$lons .= $longitude . ',';

(You might need a chop($lats); chop($lons) after the loop to remove the last comma) Then in your javascript section:

// create two arrays from that lats and lons string using split()
var latitudes = "$lats".split(',');
var longitudes = "$lons".split(',');
.....
// create map code
....
for(var i = 0; i < latitudes.lenght; i++){
    var latitude = latitudes[i];
    var longitude = longitudes[i];
   // Creating a marker and positioning it on the map
   var marker = new google.maps.Marker({
       position: new google.maps.LatLng(latitude,longitude),
       map: map
   });
}