Redirect everyone except my ip index.php - php

Question

i am running a website and my website root directory have .htaccess and index.php, now i want to redirect all user's/traffic to "Under-Construction.php" page except my ip address.
i.e
www.example.com redirect to "www.example.com/under-construction/under-construction.php"
except my ip address.
How can do this with .htaccess.
How can do this with index.php.
example: if $_SERVER['REMOTE_ADDR'] is 123.123.123 redirect index.php else redirect "www.example.com/under-construction/under-construction.php"
Regards.

Answer 1

Like this with php. Put the code at the top of index.php.
if (!in_array(#$_SERVER['REMOTE_ADDR'], array('127.0.0.1', '123.123.123.123')))
{
header('Location: http://www.example.com/under-construction/under-construction.php');
exit;
}

Answer 2

I tested this on my server:
<?php
// echo $_SERVER['REMOTE_ADDR'];
// For proof of concept
if($_SERVER['REMOTE_ADDR'] == "123.123.123.123") {
header( 'Location: http://www.google.com/' ) ;
}
?>
(Obviously that's not my ip ;)
Just as a side note, this may not be the best way to filter incoming clients, especially if you don't have a static ip address that you'll be requesting from. Perhaps set a cookie on your machine that tells the site who you are? Or add a $_GET parameter i.e. if $_GET['dev'] == true then redirect.

Answer 3

Use this .htaccess code
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_URI} ^\/index.php$
RewriteCond %{REMOTE_ADDR} !^127.0.0.1$ # replace 127.0.0.1 with your IP address
RewriteRule ^ http://www.example.com/under-construction/under-construction.php
</IfModule>
Note: Replace 127.0.0.1 with your IP address