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【PHP】根据IP查找地址

作者:Dezai.CN / 发布于2012/1/29/ 654

<div>
<div>function detect_city($ip) {</div>
<div>$default = 'UNKNOWN';</div>
if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost')
$ip = '8.8.8.8';</div>
<div>$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)';</div>
<div>$url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);
$ch = curl_init();</div>
<div>$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://' . $_SERVER['HTTP_HOST'],
);</div>
<div>curl_setopt_array($ch, $curl_opt);</div>
<div>$content = curl_exec($ch);</div>
if (!is_null($curl_info)) {
$curl_info = curl_getinfo($ch);
}
<div>curl_close($ch);</div>
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;
}
<div>}
<div>
</div>
</div>

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