In this article, you will learn about How to Draw Route Path between two locations on Map using Google Maps Direction API in PHP. You can easily display maps on the website using Google Maps API and point the location using…
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Hello! In this post, you will learn how to calculate distance between two places using google map API in php.Here you will calculate by air distance between two countries. See below ..how to do it.
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<?php function getDistance($addressFrom, $addressTo, $unit){ //Change address format $formattedAddrFrom = str_replace(' ','+',$addressFrom); $formattedAddrTo = str_replace(' ','+',$addressTo); //Send request and receive json data $geocodeFrom = file_get_contents('https://maps.google.com/maps/api/geocode/json?address='.$formattedAddrFrom.'&sensor=false&key=AIzaSyBOMQKyG37IA6VhextrNpB0YxQnsR6Phys'); $outputFrom = json_decode($geocodeFrom); $geocodeTo = file_get_contents('https://maps.google.com/maps/api/geocode/json?address='.$formattedAddrTo.'&sensor=false&key=AIzaSyBOMQKyG37IA6VhextrNpB0YxQnsR6Phys'); $outputTo = json_decode($geocodeTo); //print_r($outputFrom); //Get latitude and longitude from geo data $latitudeFrom = $outputFrom->results[0]->geometry->location->lat; $longitudeFrom = $outputFrom->results[0]->geometry->location->lng; $latitudeTo = $outputTo->results[0]->geometry->location->lat; $longitudeTo = $outputTo->results[0]->geometry->location->lng; //Calculate distance from latitude and longitude $theta = $longitudeFrom - $longitudeTo; $dist = sin(deg2rad($latitudeFrom)) * sin(deg2rad($latitudeTo)) + cos(deg2rad($latitudeFrom)) * cos(deg2rad($latitudeTo)) * cos(deg2rad($theta)); $dist = acos($dist); $dist = rad2deg($dist); $miles = $dist * 60 * 1.151; $unit = strtoupper($unit); if ($unit == "K") { return ($miles * 1.609344).' km'; } else if ($unit == "N") { return ($miles * 0.8684).' nm'; } else { return $miles.' mi'; } } if(isset($_REQUEST['cal'])) { $addressFrom = $_POST['addressfrom']; $addressTo =$_POST['addressto']; $distance = getDistance($addressFrom, $addressTo, "K"); } ?> <html> <head> <title>Distance Calculation </title> <style> * { margin: 0; padding: 0; } .container { width: 800px; margin: 0 auto; border: 0px green dashed; } p { text-align: center; margin-bottom: 15px; padding: 5px; font-size: 16px; } input { padding: 10px; width: 500px; font-size: 16px; border: 1px #003366 solid; } textarea { width: 500px; height: 150px; resize: none; font-size: 16px; padding: 10px; border: 1px #003366 solid; } </style> <link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500"> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBOMQKyG37IA6VhextrNpB0YxQnsR6Phys&libraries=places"></script> <script> var autocomplete; function initialize() { autocomplete = new google.maps.places.Autocomplete( /** @type {HTMLInputElement} */(document.getElementById('autocomplete')), { types: ['geocode'] }); google.maps.event.addListener(autocomplete, 'place_changed', function() { }); autocomplete = new google.maps.places.Autocomplete( /** @type {HTMLInputElement} */(document.getElementById('autocomplete1')), { types: ['geocode'] }); google.maps.event.addListener(autocomplete1, 'place_changed', function() { }); } </script> </head> <body onload="initialize()"> <div class="container" id="locationField"> <center> <h1>Distance: <?php if(isset($distance)) { echo $distance; } ?></h1> </center> <form action="" method="post"> <p> <input type="text" required placeholder="From" name="addressfrom" id="autocomplete" onFocus="geolocate()" /> </p> <p> <input type="text" required placeholder="To" name="addressto" id="autocomplete1" onFocus="geolocate()" /> </p> <p> <input type="submit" name="cal" value="Calculate"> </p> </form> </div> </body> </html> |