IP地址查询工具

<?php
if(isset($_GET['ip'])){  
	$ip = $_GET['ip'];  
	$details = json_decode(file_get_contents("http://ipinfo.io/{$ip}/json"));  
	echo "<h2>查询结果：</h2>";  
	echo "<p><strong>IP地址：</strong> {$details->ip}</p>";  
	echo "<p><strong>所在地区：</strong> {$details->region}, {$details->country}</p>";  
	echo "<p><strong>运营商：</strong> {$details->org}</p>";  
}
?>