155 lines
4.4 KiB
PHP
155 lines
4.4 KiB
PHP
<?php
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/*
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This PHP class is free software: you can redistribute it and/or modify
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the code under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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However, the license header, copyright and author credits
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must not be modified in any form and always be displayed.
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This class is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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@author geoPlugin (gp_support@geoplugin.com)
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@copyright Copyright geoPlugin (gp_support@geoplugin.com)
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$version 1.01
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This PHP class uses the PHP Webservice of http://www.geoplugin.com/ to geolocate IP addresses
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Geographical location of the IP address (visitor) and locate currency (symbol, code and exchange rate) are returned.
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See http://www.geoplugin.com/webservices/php for more specific details of this free service
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*/
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class geoPlugin {
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//the geoPlugin server
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var $host = 'http://www.geoplugin.net/php.gp?ip={IP}&base_currency={CURRENCY}';
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//the default base currency
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var $currency = 'USD';
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//initiate the geoPlugin vars
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var $ip = null;
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var $city = null;
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var $region = null;
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var $areaCode = null;
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var $dmaCode = null;
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var $countryCode = null;
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var $countryName = null;
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var $continentCode = null;
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var $latitude = null;
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var $longitude = null;
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var $currencyCode = null;
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var $currencySymbol = null;
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var $currencyConverter = null;
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function geoPlugin() {
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}
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function locate($ip = null) {
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global $_SERVER;
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if ( is_null( $ip ) ) {
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$ip = $_SERVER['REMOTE_ADDR'];
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}
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$host = str_replace( '{IP}', $ip, $this->host );
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$host = str_replace( '{CURRENCY}', $this->currency, $host );
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$data = array();
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$response = $this->fetch($host);
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$data = unserialize($response);
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//set the geoPlugin vars
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$this->ip = $ip;
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$this->city = $data['geoplugin_city'];
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$this->region = $data['geoplugin_region'];
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$this->areaCode = $data['geoplugin_areaCode'];
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$this->dmaCode = $data['geoplugin_dmaCode'];
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$this->countryCode = $data['geoplugin_countryCode'];
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$this->countryName = $data['geoplugin_countryName'];
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$this->continentCode = $data['geoplugin_continentCode'];
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$this->latitude = $data['geoplugin_latitude'];
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$this->longitude = $data['geoplugin_longitude'];
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$this->currencyCode = $data['geoplugin_currencyCode'];
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$this->currencySymbol = $data['geoplugin_currencySymbol'];
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$this->currencyConverter = $data['geoplugin_currencyConverter'];
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}
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function fetch($host) {
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if ( function_exists('curl_init') ) {
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//use cURL to fetch data
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $host);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_USERAGENT, 'geoPlugin PHP Class v1.0');
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$response = curl_exec($ch);
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curl_close ($ch);
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} else if ( ini_get('allow_url_fopen') ) {
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//fall back to fopen()
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$response = file_get_contents($host, 'r');
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} else {
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trigger_error ('geoPlugin class Error: Cannot retrieve data. Either compile PHP with cURL support or enable allow_url_fopen in php.ini ', E_USER_ERROR);
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return;
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}
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return $response;
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}
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function convert($amount, $float=2, $symbol=true) {
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//easily convert amounts to geolocated currency.
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if ( !is_numeric($this->currencyConverter) || $this->currencyConverter == 0 ) {
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trigger_error('geoPlugin class Notice: currencyConverter has no value.', E_USER_NOTICE);
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return $amount;
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}
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if ( !is_numeric($amount) ) {
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trigger_error ('geoPlugin class Warning: The amount passed to geoPlugin::convert is not numeric.', E_USER_WARNING);
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return $amount;
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}
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if ( $symbol === true ) {
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return $this->currencySymbol . round( ($amount * $this->currencyConverter), $float );
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} else {
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return round( ($amount * $this->currencyConverter), $float );
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}
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}
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function nearby($radius=10, $limit=null) {
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if ( !is_numeric($this->latitude) || !is_numeric($this->longitude) ) {
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trigger_error ('geoPlugin class Warning: Incorrect latitude or longitude values.', E_USER_NOTICE);
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return array( array() );
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}
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$host = "http://www.geoplugin.net/extras/nearby.gp?lat=" . $this->latitude . "&long=" . $this->longitude . "&radius={$radius}";
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if ( is_numeric($limit) )
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$host .= "&limit={$limit}";
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return unserialize( $this->fetch($host) );
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}
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}
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?>
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