How to get the IP address and region of Chianz.com in php_PHP tutorial

The result of obtaining an IP is not very perfect. The reason is that the IP resolution of ip138 is not very detailed when dealing with foreign addresses, so I re-wrote the code using Chianz.com.

$ipAddr = "4.4.44.4 ";
$ipChinazAddr = "http://tool.chinaz.com/IP/?IP=".$ipAddr;
$contents = file_get_contents($ipChinazAddr);
$pattern = "/= =>>.+
/";
$string = $contents;
preg_match_all($pattern,$string,$addrArray);
$num = count($addrArray[0]);
$pattern = "/(==>>).+(==>>s)/";
for($i = 0; $i<$num;$i++){
$addrArray[0][$i] = preg_replace($pattern,"",$addrArray[0][$i]);
}
echo "

"; <br>print_r($addrArray); <br>echo "

";
?>