leblanc-simon/ip.php

## ip.php
<?php
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");

/**
 * @see https://gist.github.com/cballou/2201933
 */
function getIp()
{
    $ip_keys = array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR');
    foreach ($ip_keys as $key) {
        if (array_key_exists($key, $_SERVER) === true) {
            foreach (explode(',', $_SERVER[$key]) as $ip) {
                // trim for safety measures
                $ip = trim($ip);
                // attempt to validate IP
                if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) !== false) {
                    return $ip;
                }
            }
        }
    }

    return isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : false;
}

if (isset($_GET['text'])) {
    header('Content-Type: text/plain');
    die(getIp());
}

?><!DOCTYPE html>
<html lang="fr">
    <head>
        <meta charset="utf-8" />
        <title>MyIP</title>
        <style type="text/css">
        html, body{margin:0;padding:0;text-align:center;font-family:monospace}
        h1{font-size:6em;padding-top:3em;}
        ::-moz-selection{background:transparent}
        ::selection{background:transparent}
        </style>
    </head>
    <body>
        <h1 id="ip"><?php echo htmlentities(getIp()) ?></h1>
        <script type="text/javascript">
            function selectText(b){var d=document;var a,c;if(d.body.createTextRange){a=document.body.createTextRange();a.moveToElementText(b);a.select()}else{if(window.getSelection){c=window.getSelection();a=document.createRange();a.selectNodeContents(b);c.removeAllRanges();c.addRange(a)}}}
            selectText(document.getElementById('ip'));
        </script>
    </body>
</html>
	<?php
	header("Cache-Control: no-cache, must-revalidate");
	header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");

	/**
	* @see https://gist.github.com/cballou/2201933
	*/
	function getIp()
	{
	$ip_keys = array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR');
	foreach ($ip_keys as $key) {
	if (array_key_exists($key, $_SERVER) === true) {
	foreach (explode(',', $_SERVER[$key]) as $ip) {
	// trim for safety measures
	$ip = trim($ip);
	// attempt to validate IP
	if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 \| FILTER_FLAG_NO_PRIV_RANGE \| FILTER_FLAG_NO_RES_RANGE) !== false) {
	return $ip;
	}
	}
	}
	}

	return isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : false;
	}

	if (isset($_GET['text'])) {
	header('Content-Type: text/plain');
	die(getIp());
	}

	?><!DOCTYPE html>
	<html lang="fr">
	<head>
	<meta charset="utf-8" />
	<title>MyIP</title>
	<style type="text/css">
	html, body{margin:0;padding:0;text-align:center;font-family:monospace}
	h1{font-size:6em;padding-top:3em;}
	::-moz-selection{background:transparent}
	::selection{background:transparent}
	</style>
	</head>
	<body>
	<h1 id="ip"><?php echo htmlentities(getIp()) ?></h1>
	<script type="text/javascript">
	function selectText(b){var d=document;var a,c;if(d.body.createTextRange){a=document.body.createTextRange();a.moveToElementText(b);a.select()}else{if(window.getSelection){c=window.getSelection();a=document.createRange();a.selectNodeContents(b);c.removeAllRanges();c.addRange(a)}}}
	selectText(document.getElementById('ip'));
	</script>
	</body>
	</html>