| Mixing a bit of PHP that reads in a city-country list from a MariaDB database and the Google JavaScript Geocoding API, I created a quick way to take a peek at some cities throughout the world.
Here it is in action:
Hello World Maps
Show me the code.
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V
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Code:
<?php
require_once ($_SERVER['DOCUMENT_ROOT']."/mobileapp/PDO_hpialcontacts.php") ;
if (!isset($_GET['city'])) {
$city = 'Spring';
} else {
$city = $_GET['city'];
}
if (!isset($_GET['country'])) {
$country = 'United States of America';
} else {
$country = $_GET['country'];
}
?>
<!DOCTYPE html>
<html>
<head>
<title>HP Cities featuring Google Geocoding Service</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 100%;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: 'Roboto','sans-serif';
line-height: 30px;
padding-left: 10px;
}
</style>
</head>
<body>
<div id="floating-panel">
<select name="address" id="address" style="height: 20px; width: auto;">
<option value="">Select a City ...</option>
<?php if (isset($city)) { ?>
<option value="<?php echo $city.', '.$country; ?>" selected><?php echo $city.', '.$country; ?></option>
<?php } ?>
<?php
$query="SELECT city.CityName, country.CountryName
FROM city
LEFT OUTER JOIN country ON country.CountryId = city.CountryID
ORDER BY city.CityName;";
foreach ($lddb->query($query) as $row) {
?>
<option value="<?php echo $row['CityName'].', '.$row['CountryName']; ?>"><?php echo $row['CityName'].', '.$row['CountryName']; ?></option>
<?php } ?>
</select>
</div>
<div id="map"></div>
<script>
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: {lat: 30.03758, lng: -95.5573227}
});
var geocoder = new google.maps.Geocoder();
document.getElementById('address').addEventListener('change', function() {
geocodeAddress(geocoder, map);
});
}
function geocodeAddress(geocoder, resultsMap) {
var address = document.getElementById('address').value;
geocoder.geocode({'address': address}, function(results, status) {
if (status === google.maps.GeocoderStatus.OK) {
//alert(results[0].geometry.location);
resultsMap.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: resultsMap,
position: results[0].geometry.location
});
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?signed_in=false&callback=initMap"
async defer></script>
</body>
</html>
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