I have an iFrame that does some background processing. When this processing is complete I would like to re-direct the user to another page, but the header change code is only affecting the embedded iFrame. Is there a way to target the main window?
I have seen the deprecated Meta redirect have a target attribute, but I don't know how widely it is supported.
In Javascript:
top.location.href = "resultpage.htm";
Works only if the top frame is on the same domain as the emitting page.
For a solution that works across domains and without Javascript, the following would work:
Continue
Use JavaScript to track content of frame, if content change, redirect browser :)
We can use javascript like this:
target.window.location='locationpage.php';
parent.window.location='index.php';
For me this always works without fail, have tried many of the others but there always seems to be some sort of issue....and it does not matter if headers have been sent etc.....
<?php
echo "<script>window.location = 'http://www.google.com'</script>";
?>
Remember this goes at the very bottom
Related
I need to pass parameters and an anchor in a php program to make sure the cursor is positioned at the last place it was in the page when it returns.
program.php?ID=123&ID2=456#777
ID=123
ID2=456
html anchor is #777
Can someone tell me how to make this work? Since it isn't working the way I'm doing it now. Thanks
The browser will not send the anchor to web server.
So PHP can't get the anchor from url.
maybe you can use javascript to request program.php?ID=123&ID2=456&anchor=777, then you can get the anchor by $_GET['anchor'].
Sorry for my bad english (ㄒoㄒ).
If you want force the cursor to the position.
this code will redirect to http://website.com/page.php#anchor and the broswer will auto cursor the position.
<?php
header("location: http://website.com/page.php#anchor");
exit;
warning: take care about header function, there is the manual header function
If the current page is the same as the redirect page, above the code will infinite redirect and the browser will throw error. So you have to write some logic, make it redirect when you want. Or just write two different page, one to show content, other one redirect to content page with anchor.
But I still think it is better to do that by JavaScript.
I'm having a problem implementing the feed dialog function of Facebook within my canvas page.
The following code runs after the form is successfully submitted to the MySQL database.
header("Location: https://www.facebook.com/dialog/feed?
app_id=************&
link=".$applink."&
picture=".$apppicture."&
name=".$appname."&
caption=".$appcaption."&
description=".$appdescription."&
redirect_uri=".$redirecturi);
It loads the following:
Ideally I need the header to redirect the location to the _parent frame. I've tried implementing this using Javascript, and a secondary header specifying target preceding the location header - but neither of these methods worked.
I just need some way of either:
1) Not showing the top bar.
2) Hiding it using a CSS hack
Any ideas?
Thanks,
Phil
Of course the JavaScript method works – if I doesn’t for you, then you simply did it wrong.
Output something like the following in answer to the form submit, and no HTTP location header with it:
<script>
window.top.location.href = '…the URL you want the user “redirected” to …';
</script>
Surround it by a basic HTML document structure, if you like – but put nothing else in there, like actual data the user is supposed to read.
I've tried implementing this using [...] a secondary header specifying target preceding the location header - but neither of these methods worked.
There is no “target” for HTTP location headers. You can’t get stuff working by just inventing your own imaginary syntax …
On a WAMP server, I have a server-side include in a file, a.shtml, composed of the following code:
<!--#include virtual="./req.php"-->
The contents of req.php are:
<?php
Header("Location:index.php");
echo "still here";
?>
When I open a.shtml, I see the text still here, but the page has made no attempt to redirect itself. Why is this? And is there any way to make it work?
Thanks for the help
EDIT: The reason I want to do this is because I have some session variables that I want to influence the way the PHP script acts. If the session variables are not set, I need it to redirect to a login page. I know I can just write the entire thing in PHP, but I'd like to do it this way if possible. If it's not possible to change header information from an included PHP file from SSI, then I'll just do it entirely in PHP.
it's impossible
you don't need that.
just address tour script that set session variables directly, not through ssi
MAYBE (with capital letters Lol), you can pull this off if you call that script in an IFRAME and that IFRAME outputs some JScript like window.parent.location = <some_url_here> forcing its parent to change its location... Its just fast-thinking from my part, I might be wrong with IFRAMEs' parent-child relation to the original document, as I haven't tested the "idea" myself :)
If your req.php returns the following html code, the redirect will happen:
<html><head>
<title>HTTP 301 This page has been moved</title>
<meta http-equiv="Refresh" content="0;URL=https://www.example.com/index.php">
</head>
<body></body></html>
But: "Google Warning: Using The Meta Refresh Tag Is Bad Practice"
I have found out the bad news about header(), so I am no longer using it, because now my website doesn't work..
Is there any other simple way to change pages automatically?
you mean like redirect?
you can also use this:
<meta http-equiv="Refresh" content="5;
URL=http://www.yahoo.com">
Try javascript redirection
<script type='text/javascript'>
window.location = "new_page.php";
</script>
or you can use meta-refresh (many examples in google).
If you can't use header in your script, just add ob_start(); at the beginning and then you can use it AFTER html.
Ultimately you'd do well to re-work your code so you do a redirection before sending a bunch of HTML that's never going to be seen. And if you do that - you can use header(), which causes less delay for your end users, reduces processing all round, and is search-engine friendly! Win-win-win.
If jquery is added in globally used header.php across the site then How to stop to load jquery library only for those pages of site which doesn't need actually? If we can't use more than one header.
purpose of question is to not to penalize those page with slow loading which actually don't need.
Your site shouldn't need more than one global-header, if you opt to even use headers to begin with. If it does, just include jQuery on all pages. It's a small cached file, it won't hurt the browsing experience.
By using the google-hosted version, it may be the case that many of your uses already have it cached before they even reach your site.
I have been guilty of pounding my fist into the nail while asking everyone else to move the hammer that's in the way...
Why not tackle the problem from the other end and use jQuery to optimize the first load?
If you have big pages that are already taking a while to download, why not section off the less-performant areas and use $().load() to fill those in?
The page will load quicker (better user experience) and you don't have to be adding any additional processing to pages that don't need it.
Cheers,
-jc
assuming you are loading the jQuery file from a correctly-configured webserver (or from google's CDN), it will be cached and not re-downloaded on each page. Assuming a visitor will hit at least one page on your site that needs jQuery then you really won't gain anything by trying to remove it from loading on pages that don't use any javascript features from the library.
First, use the compressed jquery for production. It's much smaller. Second, IIRC, once jquery is downloaded with the first page, it will be cached and won't need to be retrieved from your server for each subsequent request.
Otherwise, if you really need to explicitly load jquery only on those pages that need it, you would have to have some way for the body of your page to tell header.php that it doesn't need to load jquery. If header.php is loaded before "body.php" then that's pretty hard to do without some fancy output buffering or such.
If you're using a templating system like Smarty you could have a conditional in the master page template to check a $loadjquery flag that you set in body.php before sending the whole page off to be rendered. But that's complicated too.
Your question is very general, some specific would be great, maybe even a link to the site. Personally if you are using a CMS I would try to make some sort of "flag" for that page, or if you are simply loading a page and then loading the header from that page, insert a variable before you load the header and use that as your flag for loading jQuery.
An example:
If a user wants to see www.mysite.com then the following file would be loaded: www.mysite.com/index.php with the following code:
<?php $needJQuery = true;
include('header.php');
echo 'content will go here';
include('footer.php'); ?>
header.php would include something such as this:
<?php if ($needJQuery) { ?>
<script src="/jquery/jquery-min-3.2.1.js" />
etc. for all the content that you need above/below.
<?php } ?>
For the pages that don't need jQuery loaded, you would either leave $needJQuery undefined or you would do as follows:
<?php $needJQuery = false; ?>
Hope this helps,
As stated earlier, modify the header file so it'll check for the presence of flag variable and only output the jquery headers if needed.
If you don't have the ability to modify the header file, you could load it with output buffering turned on and filter the output before it heads out to the client:
<?php
ob_start();
include('header.php');
$header = ob_get_flush();
$cleanheader = some_operation_that_removes_the_jquery_script_tags($header);
echo $cleanheader
?>