Treehouse

PHP Redirect Function

By on  

After form submission or a page redirect is triggered, it's commonplace to redirect the user to a different page or to the same page, formatted in a different way. Usually, you'd complete this by coding:

header('Location:  destination.php');
exit();

This is a completely acceptable way to code your pages, but I prefer to use a redirect function instead. Why? It's much more readable, and quite honestly, I'm tired of writing the header('Location: ...'); code.

function redirect($url, $permanent = false) {
	if($permanent) {
		header('HTTP/1.1 301 Moved Permanently');
	}
	header('Location: '.$url);
	exit();
}

This function is incredibly easy to use and saves a lot of code.

ydkjs-2.png

Recent Features

  • 5 HTML5 APIs You Didn’t Know Existed

    When you say or read "HTML5", you half expect exotic dancers and unicorns to walk into the room to the tune of "I'm Sexy and I Know It."  Can you blame us though?  We watched the fundamental APIs stagnate for so long that a basic feature...

  • Creating Scrolling Parallax Effects with CSS

    Introduction For quite a long time now websites with the so called "parallax" effect have been really popular. In case you have not heard of this effect, it basically includes different layers of images that are moving in different directions or with different speed. This leads to a...

Incredible Demos

  • Using Opacity to Show Focus with MooTools

    I'm a huge fan of using subtle effects like link nudging (jQuery, MooTools) to enhance the user experience and increase the perceived dynamism of my websites. Trust me -- a lot of little things are what take websites to the next level....

  • dwImageProtector Plugin for jQuery

    I've always been curious about the jQuery JavaScript library. jQuery has captured the hearts of web designers and developers everywhere and I've always wondered why. I've been told it's easy, which is probably why designers were so quick to adopt it NOT that designers...

Discussion

  1. Do you use a plugin to highlight and format your php code?

  2. Shawn’s correct — you can go to the URL above to download the javascript and CSS files. I’m not using a WordPress plugin though — it’s easy to install on your own.

  3. Cool, I like the features it has over my current solution that I am using.

    Thanks.

  4. Ahm… As you’re already talking about the syntaxhighlighter… Why is the little “copy code”-snippet copying code AFTER it says “the code is in your clipboard now”!? Wouldn’t it make sense to copy it before the JS alert?
    Well, anyway – nice website Dave! I like it – and all the little code snippets are really nice. So simple, but helping a lot. Sometimes it’s harder to create them “the easy way”, so this really comes in handy. Thanks!

  5. Nice and thanx

  6. Mike Vysocka

    You can use highlight_string() in PHP to hightligt your code, or highlight_file()…
    http://php.net/manual/en/function.highlight-string.php

  7. eskenfense

    when i use this–>

    it respondes like
    Warning: Cannot modify header information – headers already sent by (output started at C:\wamp\www\New2\4.php:1) in C:\wamp\www\New2\4.php on line 3

    what shall i do

  8. txongoku


    // Nota : Rafael Trindade da Silva : Mantus Deus Etrusco do Inferno
    // Email : rafaeltds at gmail dot com
    function redirect($pURL) {
    if (strlen($pURL) > 0) {
    if (headers_sent()) {
    echo "document.location.href='".$pURL."';\n"; }
    else {
    header("Location: " . $pURL);
    }
    exit();
    }
    }

  9. shayan

    hey,thats ok

    how i moust do if i want to run one of may actions in classes

    for example=>
    http://localhost:8007/frontend_dev.php/rmsSetupReservation/create

  10. Nika

    i get this errror message…what is the problem please help me…
    Warning: Cannot modify header information – headers already sent by (output started at C:\wamp\www\bv\bookinsert.php:1) in C:\wamp\www\bv\bookinsert.php on line 139

  11. If you have problems with header function :

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

    you can use this line if you are fans of JavaScript ( client side ):

    echo "location.href='http://www.google.com'";

    OR , use this line if are not ( server side ):

    echo '';

    Sorry for my English :-)

  12. Werner

    You can run into trouble if you redirect using relative URLs. It should also be noted that
    RFC1945 requires a complete absolute URI for redirection, see: http://tools.ietf.org/html/rfc1945

  13. i have problem when i redirect the header location:-
    Warning: Cannot modify header information – headers already sent by (output started at /home/adnanakh/public_html/dcncaclub.org/admin/website_insert_back1.php:3) in /home/adnanakh/public_html/dcncaclub.org/admin/website_insert_back1.php on line 18

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!