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PHP - Detect location by IP - Here is an useful code snippet to detect the location of a specific IP. The function below takes one IP as a parameter, and returns the location of the IP. If no location is found, UNKNOWN is returned. - Source: http://snipplr.com/view/48386/detect-location-by-ip-city-state/
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<?php | |
function detect_city($ip) { | |
$default = 'UNKNOWN'; | |
if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost') | |
$ip = '8.8.8.8'; | |
$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; | |
} | |
} |
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