etutorialspoint
  • Home
  • PHP
  • MySQL
  • MongoDB
  • HTML
  • Javascript
  • Node.js
  • Express.js
  • Python
  • Jquery
  • R
  • Kotlin
  • DS
  • Blogs
  • Theory of Computation

Calculate the distance between two locations using PHP

In this article, we introduce a simple code to calculate the distance between two locations in PHP. For this, first we will get the latitude and longitude of both source and destination addresses in JSON format by sending request to google map geocode api. After that, we will calculate the distance between two locations from latitude and longitude in kilometer or miles.

Calculate the distance between two locations using PHP

This is the main file, that we will call on the browser. This file contains two input boxes to enter source and destination addresses and a selection option to select the unit. When the user clicks on the submit button, getRouteDistance() method will be called. This function calls the google api and gets the latitude and longitude of the entered addresses from json_encode and calculate the distance between them.

<!DOCTYPE html>
<html>
   <head>
       <title>Calculate the distance between two locations</title>
       <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" >
       <style type="text/css">
            .formbg { background-color: #66CCFF; padding: 10px 0 10px 20px; color: #191919;
                    border-radius: 10px;  border: 2px solid #6D0839; width: 780px; margin: 0 auto;
            }
	   label { font-size: 18px; }
	   h1 {color: #003366;}
       </style>
   </head>
   <body>
      <?php 
      function getRouteDistance($source_adrs, $dest_adrs, $unit){
          //Send request and receive json data
          $s_geocode = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$source_adrs.'&sensor=false');
          $s_latlong = json_decode($s_geocode);
          $d_geocode = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$dest_adrs.'&sensor=false');
          $d_latlong = json_decode($d_geocode);
          //Get latitude and longitude
          $lat1 = $s_latlong->results[0]->geometry->location->lat;
          $long1 = $s_latlong->results[0]->geometry->location->lng;
          $lat2 = $d_latlong->results[0]->geometry->location->lat;
          $long2 = $d_latlong->results[0]->geometry->location->lng;

          //Calculate distance from latitude and longitude
          $theta = $long1 - $long2;
          $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
          $dist = acos($dist);
          $dist = rad2deg($dist);
          $miles = $dist * 60 * 1.1515; 
          $unit = strtoupper($unit);
          if ($unit == "K") {
              return ($miles * 1.609344).' KM';
          } else {
              return $miles.' MI';
          }
      } 
      ?>
      <div class="form-group row formbg">
          <?php
          if(($_POST['source'] != '') && ($_POST['destination'] != '')) {
              $source = $_POST['source'];
              $destination = $_POST['destination'];
              $unit = $_POST['unit'];
              $source_adrs = str_replace(' ', '+', $source);
              $dest_adrs = str_replace(' ', '+', $destination);
              $distance = getRouteDistance($source_adrs, $dest_adrs, $unit);
              if($distance != '') {
                echo 'Distance Between <b>'.$source.'</b> and <b>'.$destination.' : </b><b>'.$distance.'</b>'
                    .'<br/><br/>';
              }
          }
          ?>
          <form action="" method="post">
             <div class="form-group row">
                <label class="col-xs-3 col-form-label">Enter Source Address: </label>
                <div class="col-xs-5">
                 <input class="form-control" type="text" name="source" value="" placeholder="Source">
                </div>
             </div>
             <div class="form-group row">
                <label class="col-xs-3 col-form-label">Enter Destination Address: </label>
                <div class="col-sm-5">
                 <input class="form-control" type="text" name="destination" value="" placeholder="Destination">
                </div>
              </div>
              <div class="form-group row">
                 <label class="col-xs-3 col-form-label">Unit: </label>
                 <div class="col-sm-5">
                  <select name="unit" class="form-control">
                      <option value="k">Kilometer</option>
                      <option value="m">Mile</option>
                  </select>
              </div>
             </div>
             <div class="form-group row">
                 <label class="col-xs-3 col-form-label"> </label>
                  <div class="col-sm-5">
                   <input class="btn btn-primary" type="submit" value="Submit"/>
                  </div>
                </div>
          </form>
      </div>
 </body>
</html>


◀ Previous Article
Simple star rating system using PHP, jQuery and Ajax
Next Article ▶
Convert MySQL to JSON
Most Popular Development Resources
Retrieve Data From Database Without Page refresh Using AJAX, PHP and Javascript
-----------------
Characteristics of a Good Computer Program
-----------------
Get current visitor\'s location using HTML5 Geolocation API and PHP
-----------------
Simple star rating system using PHP, jQuery and Ajax
-----------------
Dynamically Add/Delete HTML Table Rows Using Javascript
-----------------
PHP MYSQL Advanced Search Feature
-----------------
How to Sort Table Data in PHP and MySQL
-----------------
Simple pagination in PHP
-----------------
Submit a form data using PHP, AJAX and Javascript
-----------------
jQuery loop over JSON result after AJAX Success
-----------------
PHP user registration and login/ logout with secure password encryption
-----------------
Polling system using PHP, Ajax and MySql
-----------------
Fibonacci Series Program in PHP
-----------------
jQuery File upload progress bar with file size validation
-----------------
Create pie chart using Google API, PHP and MySQL
-----------------
PHP Secure User Registration with Login/logout
-----------------
Recover forgot password using PHP7 and MySQLi
-----------------
SQL Injection Prevention Techniques
-----------------
PDO MySQL Connection in PHP
-----------------
Php file based authentication
-----------------
How to add multiple custom markers on google map
-----------------
Set and Get Cookies in PHP
-----------------
Date Timestamp Formats in PHP
-----------------
Convert MySQL to JSON using PHP
-----------------
Detect Mobile Devices in PHP
-----------------
Simple PHP File Cache
-----------------
Simple File Upload Script in PHP
-----------------
PHP Server Side Form Validation
-----------------
Simple Show Hide Menu Navigation
-----------------
Calculate the distance between two locations using PHP
-----------------
To check whether a year is a leap year or not in php
-----------------
How to generate QR Code in PHP
-----------------
Get Visitor\'s location and TimeZone
-----------------
PHP User Authentication by IP Address
-----------------
PHP Programming Error Types
-----------------
How to get current directory, filename and code line number in PHP
-----------------
Sending form data to an Email using PHP
-----------------
Simple way to send SMTP mail using Node.js
-----------------
Divide Large Data Into Two Columns Using PHP
-----------------
CSS Simple Menu Navigation Bar
-----------------
Preventing Cross Site Request Forgeries(CSRF) in PHP
-----------------
Driving route directions from source to destination using HTML5 and Javascript
-----------------
How to use google map street view api on webpage
-----------------
How to encrypt password in PHP
-----------------
How to select/deselect all checkboxes using Javascript
-----------------
Print different sections of a web page using javascript
-----------------
How to add google map on your website and display address on click marker
-----------------
Hypertext Transfer Protocol Overview
-----------------
Create And Download Word Document in PHP
-----------------
PHP code to send email using SMTP
-----------------
Simple XML Manipulation In PHP
-----------------
Getting Document of Remote Address
-----------------
File Upload Validation in PHP
-----------------
PHP Connection and File Handling on FTP Server
-----------------
R Plot Types
-----------------


Most Popular Blogs
Most in demand programming languages
Best mvc PHP frameworks in 2019
MariaDB vs MySQL
Most in demand NoSQL databases for 2019
Best AI Startups In India
Kotlin : Android App Development Choice
Kotlin vs Java which one is better
Top Android App Development Languages in 2019
Web Robots
Data Science Recruitment of Freshers - 2019


Interview Questions Answers
Basic PHP Interview
Advanced PHP Interview
MySQL Interview
Javascript Interview
HTML Interview
CSS Interview
Programming C Interview
Programming C++ Interview
Java Interview
Computer Networking Interview
NodeJS Interview
ExpressJS Interview
R Interview



Blogs

  • Jan 27

    Best AI Startups In India

    Artificial Intelligence is a process of making an intelligent computer machine that does tasks intelligently...

  • Jan 23

    Most in demand programming languages for 2019

    In this article, we have mentioned the analyzed results of the most in demand programming language for 2019...

  • Jan 15

    Web Robots

    Web robots is an internet robot or simply crawlers, or spiders and do not relate this with hardware robots...

  • Jan 12

    Most in demand NoSQL databases software for 2019

    In this article, we have mentioned the analyzed result of most in demand NoSQL database softwares for 2019...

  • Jan 10

    Kotlin : Android App Development Choice

    Kotlin is a general-purpose open-source programming language. It runs on the JVM and its syntax is much like Java...

Follow us

  • etutorialspoint facebook
  • etutorialspoint twitter
  • etutorialspoint linkedin
etutorialspoint youtube
About Us      Contact Us


  • eTutorialsPoint©Copyright 2019. All Rights Reserved.