How to get IP address of Client in PHP ?

Simple PHP program to get IP address and name of Client

<?php


echo "<h3>Welcome ! Your IP address is: "  .$_SERVER['REMOTE_ADDR'];
echo "<br/>Your Computer Name is: ".$_SERVER['HTTP_HOST']."</h3>";


?>

PHP has $_SERVER superglobal array which provides important information about Client and Server.


$_SERVER['REMOTE_ADDR'] - gives IP address of Client accessing website.
$_SERVER['HTTP_HOST']     - gives Host name of Client accessing website.