php - header location redirect: https to https, http to http

Question

How do I properly use header function, so

header("location: http://".$_SERVER['HTTP_HOST']."/?para=abc"); //for http

and

header("location: https://".$_SERVER['HTTP_HOST']."/?para=abc"); //for https

could be written in 1 string if possible?

.htaccess file will take care of all http pages to be redirected to https with no problem, but I believe it makes sense to use a proper syntax for http/https pages in header("location:...), so it is correct for all browsers.

user1756209 · Accepted Answer · 2013-07-28 16:34:56Z

10

You could also use the following code:

header("Location: //www.google.com");

answered Jul 28, 2013 at 16:34

user1756209

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1 Comment

cederlof Over a year ago

This doesn't work for me. It appends the URL to the current root url.

Eugen Rieck · Accepted Answer · 2012-01-10 11:07:33Z

4

$protocol='http';
if (isset($_SERVER['HTTPS']))
  if (strtoupper($_SERVER['HTTPS'])=='ON')
    $protocol='https';

header("location: $protocol://".$_SERVER['HTTP_HOST']."/?para=abc");

edited Jan 10, 2012 at 11:07

answered Jan 10, 2012 at 10:01

Eugen Rieck

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Comments

jeanreis · Accepted Answer · 2012-01-10 10:01:44Z

2

if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != '') {
    header("location: https://".$_SERVER['HTTP_HOST']."/?para=abc");
} else {
    header("location: http://".$_SERVER['HTTP_HOST']."/?para=abc")
}

This should work for Apache, at least.

answered Jan 10, 2012 at 10:01

jeanreis

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DonCallisto · Accepted Answer · 2012-01-10 10:04:18Z

1

You can isolate the protocol-type by doing something like this:

$protocol = isset($_SERVER['HTTPS']) and 'https' or 'http'

Then

header("location: $protocol://".$_SERVER['HTTP_HOST']."/?para=abc");

answered Jan 10, 2012 at 10:04

DonCallisto

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tsanchev · Accepted Answer · 2015-05-22 10:18:30Z

0

You can get the protocol by following code:

$protocol = strtolower( substr( $_SERVER[ 'SERVER_PROTOCOL' ], 0, 5 ) ) == 'https' ? 'https' : 'http';

and then redirect like this

header( 'location: ' . $protocol . '://' . $_SERVER[ 'HTTP_HOST' ] . '/?para=abc' );

answered May 22, 2015 at 10:18

tsanchev

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