PHP - DETECT LOCATION OF THE USER

Using the below function you can check the city from which the user is visiting your website.

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function detect_city($ip) {                  $default = 'UNKNOWN';           $curlopt_useragent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)';                  $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);         $ch = curl_init();                  $curl_opt = array(             CURLOPT_FOLLOWLOCATION  => 1,             CURLOPT_HEADER      => 0,             CURLOPT_RETURNTRANSFER  => 1,             CURLOPT_USERAGENT   => $curlopt_useragent,             CURLOPT_URL       => $url,             CURLOPT_TIMEOUT         => 1,             CURLOPT_REFERER         => 'http://' . $_SERVER['HTTP_HOST'],         );                  curl_setopt_array($ch, $curl_opt);                  $content = curl_exec($ch);                  if (!is_null($curl_info)) {             $curl_info = curl_getinfo($ch);         }                  curl_close($ch);                  if ( preg_match('{<li>City : ([^<]*)</li>}i', $content, $regs) )  {             $city = $regs[1];         }         if ( preg_match('{<li>State/Province : ([^<]*)</li>}i', $content, $regs) )  {             $state = $regs[1];         }           if( $city!='' && $state!='' ){           $location = $city . ', ' . $state;           return $location;         }else{           return $default;         }              }

Syntax

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<?php $ip = $_SERVER['REMOTE_ADDR']; $city = detect_city($ip); echo $city; ?>