PHP Header Redirect, If Variable Then Redirect - php

Question

I want to use one URL to redirect users to various outgoing URLs. For example http://example.com/out.php?ofr=2 where ofr will refer to the appropriate URL the user should be redirected to.
I have the following php code for out.php
Is this acceptable, or is there a more efficient way to accomplish this (assuming there were 10 or so different URLs in the below script)?
<?php
$ofr = $_GET['ofr'];
if ($ofr == 1) {
header('location: http://google.com');
}
elseif ($ofr == 2) {
header('location: http://yahoo.com');
}
else {
header('location: http://msn.com');
}
?>
Edit: Looking at switch statements as suggested, I believe it would look like:
$ofr = $_GET['ofr'];
switch ($ofr){
case 1: header('location: http://example_1.com');
break;
case 2: header('location: http://example_2.com');
break;
default: header('location: http://example_2.com');
break;
}
Does that look correct? Thanks!

Answer 1

First of all I suggest to make a redirect function like so:
function redirect($url)
{
$baseUri=_URL_;
if(headers_sent())
{
$string = '<script type="text/javascript">';
$string .= 'window.location = "' . $baseUri.$url . '"';
$string .= '</script>';
echo $string;
}
else
{
if (isset($_SERVER['HTTP_REFERER']) AND ($url == $_SERVER['HTTP_REFERER']))
header('Location: '.$_SERVER['HTTP_REFERER']);
else
header('Location: '.$baseUri.$url);
}
exit;
}
then in a file called redirectFiles.php make array of the urls that you want to redirect:
$redirecUrls = [
'location: http://example_1.com',
'location: http://example_2.com',
'location: http://example_3.com',
]
then make a function to do the redirecting:
function redirectUrls($index){
if(isset($redirecUrls[ $index])
return redirect($redirecUrls[ $index])
return false;
}
After that you can do something like this:
$ofr = $_GET['ofr'];
if($ofr!='')
redirectUrls($ofr)

Answer 2

Try something like this:
<?php
$ofr=$_GET['ofr'];
$url_array=array([1]=>http://google.com [2]=>http://yahoo.com);
foreach($url_array as $key=>$value)
{
if($ofr==$key)
header('location: ".$value."');
}
?>