I'm using Zend Framework and it has a controller formatted to be accessed like this: url/search/Steve where Steve is a $_GET variable(name=keyword). It parses it correctly.
Now, the big question is: how can I have an url like that after the form is submitted? Instead of having ?keyword=Steve.
Thanks
have a look at the getParam method for Zend_Controller_Request
Something like this...
$var = Zend_Controller_Request::getParam('keyword');
$url = 'url/search'.$var;
If you var_dump($var) in between the two lines of code above you can test what values your application is returning.
This is all part of Zends Request object
Remember you can still use the $_GET superglobal with zend so the above becomes
$var=$_GET['keyword'];
$url = 'url/search'.$var;
I'm unsure of what you really want to have done.
If you have forms then what you should do in your case is to put method="POST" so that the fields don't end up in the URL at all in your case.
Or you need to do some JavaScript trickery to change the action="" of the form whenever the field you mention is changed. However, I've found this to be a bit unreliable as some browsers doesn't really like this for some reason.
Or, perhaps better, you could do a redirect after the form is submitted, where you redirect to the new "prettier" URL.
It all depends on your purpose.
Related
I'm kind of a noob at this stuff.
But I've been browsing around and I see sites that are kind alike this
www.store.com/product.php?id=123
this is really cool. but How do I do it?
Im stuck using something like this
www.store.com/product/product123.php
If you could tell me how I can go about do this it would be awesome!
What you're looking at is a $_GET argument.
In your PHP code, try writing something like this:
$value = $_GET['foo'];
Then open your page like this:
hello.php?foo=123
This will set $value to 123.
You need to use the $_GET here.
if you use the following:
?id=123
then this will be how to use it and the result
$_GET['id'] (returns the 123)
You can use as many $_GET arguments as you need, for example:
?id=123&foo=bar&type=product
$_GET is an array of what parameters are in the url, so you use it the same way as an array.
Create a file called product.php with this code:
<?php
echo "The argument you passed was: " . $_GET['id'];
?>
Now run this URL in your browser:
http://<yourdomain>/product.php?id=123
and you will understand how $_GET works.
Those are called URL parameters (what they're contained in is called a query string), and they're not unique to PHP but can be accessed in PHP using the $_GET superglobal.
Similarly, you can get POST parameters using the $_POST superglobal, though in POST requests, these parameters are not appended to the URL.
Note: Generally, for usability purposes (and thus also SEO purposes), you want to avoid using query strings as much as possible. These days, the standard practice is to use URL rewriting to display friendly URLs to the user. So your application might accept a URL like:
/products.php?id=32
But the user only sees:
/product/32
You can do this by using mod_rewrite or similar URL rewriting capabilities to turn the friendly URL into the former query string URL internally, without having the user type out the query string.
You might want to have a look at the documentation at www.php.net, especially these pages: http://www.php.net/manual/en/reserved.variables.php
Specifically, have a look at $_GET and $_POST, which are two frequently used ways to transmit information from a browser to the server. (In short, GET-parameters are specified in the URL, as in your question, while POST-parameters are "hidden from view", but can contain more data - typically the contents of forms etc, such as the textbox you posted your question in).
I use;
$referrer = $_GET['_url'];
If I echo $referrer; it will display correctly.
If I use $referrer within a $_POST, it is empty. I think due to $referrer being assigned to $_GET.
How can I extract the value of $referrer into another variable so it is no longer assigned to the $_GET?
I hope that makes sense..
$_POST will only contain data IF you send that from form.
So, your code is basically right. Because you use referrer from within your URL.
If you really want to have $referer from $_POST, you will have to code something like this:
<form method="post" action="somewhere.php">
<input type="hidden" name="_url" value="{place the referrer here}" />
</form>
Or, like #Michael Gillette answer, you can change that with $_REQUEST.
hope that makes sense..
sorry, but it doesn't :)
$referrer become distinct variable with no relation to $_GET['_url']. It already contains value extracted from $_GET
there are not a single reason for $_GET sourced variables to conflict with $_POST.
Your problem is somewhere else.
It seems you're just trying to access variable that doesn't exist. Because every variable dies along with whole PHP after it's execution.
PHP scripts execution is atomic. It's not like a desktop application constantly running in your browser, and not even a demon with persistent connection to your desktop application. It's more like a command line utility - doing it's job and exits. It runs discrete:
a browser makes a call
PHP wakes up, creates an HTML page, sends it to the browser and dies
Browser renders that HTML and shows it to the user.
User clicks a link
a browser makes a call
another PHP instance, knowing nothing of the previous call, wakes up and so on
So, if you set your $referrer in one instance and trying to access it in another, it will fail. You have to re-sent it's value with next call
Use the clone keyword, as seen in the examples in this article:
http://php.net/manual/en/language.references.php
could you post an example of what you might like to do?
$referrer = $_REQUEST['_url'];
will return true on both GET and POST requests
I an redirection (in some cases) from a controller to the error controller, action 'not-logged-in' using the redirector helper. My problem is the following: I want to pass an argument in the $_POST array (an URL from where the redirection happened) so the user will be able to return to that page after performing a login.
How can i place data in the $_POST array while using redirect helper?
Thank you ahead.
When you use the redirector with an internal redirect (ie. goToRoute) the paramters are passed along with it. Thus if you add your refferrer to the the request before you actually redirect:
// Assuming $request is a Zend_Controller_Request
$request->setParam('ref', $referrer);
// then use the redirector
then that variable will be passed along with the request upon redirect. So then you would need to check for/grab that variable from the request in the action youve redirected to and then set it as a hidden field in the form. Then when your form posts to your login action you can check again for a ref variable and on successful login redirect to that location.
Now if i were you i would not actually use the referral as the url but a serialized or json encoded array of the previous request's parameters. that way you can use goToRoute in this second instance as well.
Ofcourse if the redirection came form some sort of post action that contained sensitive data you wouldnt want to do this. In that case you would want to use the session as has been previously suggested.
Above all the best advice i can give is to look at the code of Zend_Controller_Router_Rewrite and Zend_Controller_Action_Helper_Redirector.
Not possible without some socket or Curl jiggery pokery.
Why not try using $_SESSION array in the same way?
Does it really matter if the user can see the redirection url in the address bar? i doubt they will care and i see it a few times on some top sites.
Passing control to the login page just feels more like a _forward than a _redirect, like it all belongs under the one action. Especially since you're coming right back.
_forward($action, $controller = null, $module = null, array $params = null)
Then, you can pass your originating location in $params as you'd like.
I'm pretty sure that you can't send POST when redirecting a person to another page. But maybe you can, and if so, I hope somebody proves me wrong here.
I'm not sure how you'd do what you want using Zend Framework, but I would suggest two ways how to do it in general. You can either send a GET variable, or use a session variable to store a back-URL.
I'm trying to make a bookmarklet that will take the URL of the current page you are on, and send it to an application written using CodeIgniter.
The problem I keep running into is that I can't do a standard AJAX call, because it's cross-domain. It is disallowed, and I can't figure out a way to use the JSONP via $_GET method since CodeIgniter blows away the $_GET parameter.
At this point I'll take any suggestions on how to do this. Please note that I need to send a URL, and if it's to be passed via a URL itself it obviously needs to be encoded or something. This I also haven't figured out how to do, so any pointers on that end would be appreciated as well.
Codeigniter unsets $_GET but you can get the data from the query string. It is a little inefficient because PHP will probably end parsing the query string twice, but it should work:
parse_str($_SERVER['QUERY_STRING'], $get);
print_r($get);
All the GET variables should be accesible in the variable $get. See parse_str() documentation for some more information.
As an alternative you could url-encode the current URL and append it to what you are requesting e.g.
var url = 'http://example.com/bookmarklet/'
+ encodeURIComponent(window.location);
Then in Codeigniter do something like:
//you might have to call urldecode() on this value
$url = $this->uri->segment(0);
but you may find you then have this problem
It is possible to enable query strings in Codeigniter, but watch out for the caveats - you can't use the URL helper, for example.
How do I make it so that I can make a thing at the end of the address where the .php is and then tell it to do certain things. For example pull up a page like this:
sampardee.com/index.php?page=whatever
Help?
Anything else I could do with this?
This is generally achieved with the global php array $_GET. You can use it as an associative array to 'get' whatever variable you name in the url. For example your url above:
//this gives the $page variable the value 'whatever'
$page = $_GET['page'];
if($page == 'whatever'){
//do whatever
}
elseif($page == 'somethingelse'){
//do something else
}
Check out the php documentation for more information:
$_GET documentation
and there's a tutorial here:
Tutorial using QUERY_STRING and _GET
A small improvement over Brett's code:
if (array_key_exists('page', $_GET) === false)
{
$_GET['page'] = 'defaultPage';
}
$page = $_GET['page'];
// ... Brett Bender's code here
$_GET is usually used if you are sending the information to another page using the URL.
$_POST is usually used if you are sending the information from a form.
If you ever need to write your code so that it can accept information sent using both methods, you can use $_REQUEST. Make sure you check what information is being sent though, especially if you are using it with a database.
From your question it looks like you are using this to display different content on the page?
Perhaps you want to use something like a switch to allow only certain page names to be used?
i.e.
$pageName=$_REQUEST['page'];
switch($pageName){
case 'home':$include='home.php';break;
case 'about':$include='about.php';break;
case default:$include='error.php';break;
}
include($include);
This is a really simplified example, but unless the $page variable is either home or about, the website will display an error page.
Hope it helps!
I'm not quite sure what you're asking, but I think you're asking how to use GET requests.
Make GET requests against any PHP page as follows:
www.mysite.com/page.php?key1=value1&key2=value2
Now, from within PHP, you'll be able to see key1 -> value1, key2 -> value2.
Access the GET hash from within PHP as follows:
$myVal1 = $_GET['key1'] #resolves to "value1"
$myVal2 = $_GET['key2'] #resolves to "value2"
From here, play with your GET variables as you see fit.
The system of adding page parameters to a URL is know as HTTP GET (as distinct from HTTP POST, and some others less commonly used).
Take a look at this W3 schools page about GET in PHP and ahve a play about in getting parameters and using them in your PHP code.
Have fun!