I need to link to a specific page in my Facebook app. The app is not in a page tab, and cannot be in one due to the project constrictions.
This is the url format:
https://apps.facebook.com/myappname
I would need to pass a parameter at the end (like /next.html or ?page=next) so that I can link to the specific page directly from outside the app (from an email).
How would I set this up? My project uses PHP and jQuery. I would love to be able to do this strictly in Javascript if possible.
I have found tons of info on how to deep link a page tab or a mobile app, but not to a regular application. I have found messages stating it's possible, but nothing about how to actually do it anywhere online or on Facebook.
Thanks for your help.
EDIT:
Okay, I got it working in PHP. For anyone else with this issue, this is what I did.
Add a "?" at the very end of the 'Site URL' in your FB app, then create a redirect file similar to this as your app landing page (just use absolute paths instead of relative ones like I did below):
<?php
$query = $_SERVER['QUERY_STRING'];
$params = explode("/", $query);
if (in_array("gallery", $params)) {
header("Location: /gallery.html");
exit;
}
else {
header("Location: /index.html");
exit;
}
?>
This answer is what helped me figure this out:
$_GET on facebook iframe app
I may be missing something here, but why don't you just link to http://apps.facebook.com/yourapp/something.php - this should automatically load your canvas URL, with something.php appended to the path
Obviously this won't work if your canvas URL points to a specific file and not a directory, but plenty of apps do this with success
When you are using the ? all you are doing is issuing a $_GET request, so all of the info you require will exist in the $_GET array.
Rather than query the $_SERVER array, query the $_GET array.
So if you had:
http://myurl.com?info=foobar
You can simply access that info using:
$info = $_GET['info'];
It is good practice to check for the existence first though:
if (isset($_GET['info']))
{
$info =$_GET['info'];
}
else
{
$info="default";
}
Incidently if you use the & character you can have multiple parameters:
http://myurl.com?info=foo&moreinfo=bar
You get a special parameter called app_data that you can use however you want. I've used it in the past to encode a full querystring of my internal app. for example, &app_data=My/Custom/Page
More found in this SO question: Retrieve Parameter From Page Tab URL
Related
I want to have a navigation bar that tells the user where they just came from.
Example: Homepage -> Post
But if they are in their posts manager and click on a post, I want it to say
Posts manager -> Post
I read that $_SERVER['HTTP_REFERER'] is not good enough to get the full url so that's not useful as I want the navigation bar all clickable
Any help is much appreciated!
I believe what you want is called breadcrumbs.
What to use for navigation chain storage is actually up to you. You might use even $_SERVER['HTTP_REFERER'] if you want, but that'd be unreliable as it's client-side. Usual way to store such chain is actual URI or session.
For example, you have such URI: http://www.example.com/post_manager/post
Then you can iterate through explode("/", $_SERVER["REQUEST_URI"]) to get each step.
That's basic explanation to guide you to a right direction. You can google alot of samples and snippets using keyword breadcrumbs.
On the topic of saving last visited location (the way to determine wether abonent came from manager or homepage): you can use session's variables to do that. Here's an example:
This way you can set a variable on your homepage:
<?php
session_start();
$_SESSION['previous_location'] = 'homepage';
?>
And then you just access it from another page:
<?php
$previous_location = $_SESSION['previous_location'];
?>
It's important to set session.save_path in your PHP configuration file or your sessions might get lost.
You could do it on the client side if you use the Javascript document.referrer property. However, a better solution may be to use the global session array.
if (!isset($_SESSION['referrer'])) {
$_SESSION['referrer'] = $current_uri;
} else {
$previous_uri = $_SESSION['referrer'];
$_SESSION['referrer'] = $current_uri;
}
The best solution IMO is to save the location into session, every time the user goes to a 'meaningful' page (that you want to be able to navigate back to via this feature), then simply use this array of, say, last 2 visited pages to pull up all the information. Simple and effective.
<?php
session_start();
$_SESSION['user_interactions'][] = $_SERVER['HTTP_REFERER'];
// get previous
$previous_page = end($_SESSION['user_interactions']);
// list all user interactions
foreach($_SESSION['user_interactions'] as $key => $value){
echo $value;
if(count($_SESSION['user_interactions'])-1 != $key) echo ">";
}
?>
I want to check redirect to another link from our webpage if user clicking on back from browser I must be alert for user such as 'Backword Forbidden ...'
I'm using this code and that not working for me:
$referer = Request::header('referer');
or how to check witch URL user backword to our site?
If you want to get the Referer URL, you can use either Request::header('referer') or native $_SERVER["HTTP_REFERER"]. But there are (at least) 2 problems with that:
It can be spoofed, empty etc.
It will only work if the person got to your page through a link. It won't work when pressing the browser's back button or backspace.
The function you're looking for is Request::server() which functions just like the $_SERVER super global, so to get the page referer you'd do the following.
$referer = Request::server('HTTP_REFERER');
Using Request::header('refer') will only work for POST requests.
GET requests are the one your're looking for.
You can use Request::segment(1) or Request::segment(2), depends on the exact URL you're using.
I do not care about people viewing my source code, however, I want Bots to avoid coming on to my site and getting through my security. I was hoping to disable page source viewing. To do this, I am using this code:
$url= $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$needle = "view-source:";
if (strpos($url,$needle)) { echo "You can not see me";}
else {
//The rest of my index page
}
The objective here is that if someone tries to view my page source or if a bot tries to, that rather than being able to see it, the code will detect that the page URL is view-source:www.yoururl.com and will display a "Nice try" message in the source instead of the page source. The code above in theory should have worked, but didn't. Any other idea's to try and make this work?
This cannot be done, the HTML source code is passed to whoever requests it. You should probably redesign your captcha, as it is not secure from how you described it. Use session variables to store the data and to check against the submitted value on the form processor script.
you could use mod_rewrite and a permanent 301 redirect in your .htaccess to hide the ?captcha=xxxx part of your url, if it is your sole concern.
Im new to this and im trying to rewrite URL so that utm_expid is hidden so if my url is:
http://www.myweb.com/?utm_expid=67183125-2
how would i make it so when user visits
myweb.com
it does not show utm_expid in url
Is this possible using PHP/JS?
NOTE: i cant use RUBY or any other languages except PHP/JS/HTML
There is a way. Just redirect the page to base url once the utm_expid=67183125-2 is got. ie,
if($_GET['utm_expid']) { //header to redirect to myweb.com }
Its a tricky way. Hope you are permitted to use it.
Just start a session and store value in session variable. you can regain it even page is re directed.
ie
<?php
session_start();
if($_GET['utm_expid']) {
$_SESSION['variable_name']=$_GET['utm_expid']
//header to redirect to myweb.com
}
?>
Let me add this Javascript trick that is server agnostic.
if (location.search.indexOf('utm_expid') > -1) {
history.replaceState('page', 'Title', '/')
}
I recommend you to place it at the end of the body.
If you wanted a clean URL (as you do for branding and manual sharing purposes), I'd script it so that you load a full page iFrame which loads the gA test queried URL. That way the user see s the clean URL in the address bar and still see the experiment.
You could use PHP to set up your index page (or any server side, or even client side script).
I have a quick question i hope you guys can answer, i've got a search system that uses POST to do searches, now i want to track queries using Google Analytics but it requires using GET url parameters to pull parameters out the URL, what i don't want to do is rewrite the entire search system to use GET instead of POST. Is there any way around this? I was thinking maybe i can make a GET call to a new page from the page that recieves the search POSTs, but i don't want it to redirect, i merely want it to "hit" the url without actually redirecting?
Is this possible?
Any other solutions would also be appreciated.
Thanks for the help
You can specify an abritrary URL when you add your GA code. For example, all our different checkout pages go through validate.php, so this is the URL that the person would see, however, we put in some extra code to give a specific tracking URL to google.
For example:-
<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("UA-XXXXX-1");
pageTracker._setDomainName("example.com");
pageTracker._trackPageview("/checkout/login/");
} catch(err) {}
</script>
Would make google track this as being /checkout/login/ even though the page in the browser actually shows /validate.php
You can output (as we do) this page variable from different PHP variables
$searchterm = $_POST['search'];
echo 'pageTracker._trackPageview("/search/' . urlencode($searchterm) . '");';
Sure, use the apache mod_rewrite module to create a fancy, seo friendly url and pass the user keywords in the url.
Something like "www.yoursite.com/search/what+a+user+searches+for/"
In a .htaccess file you create a rule
RewriteRule ^search/(.*)/$ /search.php?keywords=$1
You're orignal script keeps working with your postvalues and you provide an URL with GET variables. With explode("+", $_GET["keywords"]) you can extract the searchvalues.
With the array $_REQUEST you can access all request parameters GET and POST.
The only way you will be able to do this, is re-set the forms method to GET and just changed the $_POST requests to $_GET
Thats not such a huge change?
You should be able to do that with HTTPRequest:
http://php.net/manual/en/class.httprequest.php
You can just alter your Google Analytics code - see Tracking Custom Variables