Question

I have an array of coordinates (latitude and longitude) in one .php script and want to pass these values to maps.php which will display a google map and plot these values passed (i.e. latitude and longitude coordinates) on the map.

My question is that, is it possible to pass these values to maps.php when clicking on
<a href="maps.php"> view map </a> ???

Thanks

Answer 1

You can serialize your array, and then pass it in a GET parameter. For instance:

# Your array of coordinates
$coord_array = array();

# Serialize the coordinates
$coord_array = serialize(coord_array);

# In your href you'd have
print '<a href="maps.php?coords=' . $coord_array . '">View Map</a>';

Now in your maps.php, you need to unserialize, and you can interact with the array as you normally would:

# Get the information from the URL
$coord_array = $_GET['coords'];

# Unserialize
$coord_array = unserialize(coord_array);

# Check the input to make sure it hasn't been changed . . .

# Now interact as you normally would with the array
print_r($coord_array);

This method would be ideal for passing a lot of values in a single GET parameter. If you’re passing only one value, then you may be better off just setting two GET parameters, one for the longitude and one for the latitude.

Also note, that I didn’t test any of this code as I didn’t have time, but the concepts should be correct.