So suppose I have the url:
http://url?x=1&y=2
Then I can just get all the get parameters via PHP using the $_GET variable
so print_r($_GET) will echo all the get variables
Now suppose I'm using zend framework and i'm trying to take advantage of the /var/value/var/value feature:
so now my url is
http://url/controller/action/x/1/y/2
I know how to get the values for individual parameters x and y:
$this->request = $this->getRequest();
$x = $this->request->getParam('x');
But suppose if I want to get all the GET parameters just like using the $_GET object without Zend framework so that I don't have to access the variable individually....how do I do this within the framework using that newly formatted url?
If all you want is $_GET, use $request->getQuery()
If you want merged parameters (like getParam() does, use $request->getParams()
Related
Just want to know if Yii2 cleans the $_POST variables if I use this method:
Yii::$app->request->post()
If suppose I am using the following method to get the value of x:
$x = Yii::$app->request->post('x');
Does Yii2 framework internally cleans the $_POST variable? Or else we have to do it manually?
No, the $_POST stays untouched, in its initial condition.
Yii just copies and holds it in private $_bodyParams property.
And I don't think it's a good practice to manually modify or clean $_POST parameters.
I am using Zend framework and it does URL rewriting
but I want to handle in controller just regular querysting, get request
seomthing like this transactionsExternal.phppage=1&start=0&limit=100&sort=threadid&dir=ASC&callback=Ext.data.JsonP.callback1
Can somebody tell me how to get this GET request variables in controller? considering that Zend prevents me just to use variables like $_GET[something]
$this->getRequest()->getParams(); also is not returning anything
ZF does not prevent you using $_GET, although doing so is discouraged. $this->getRequest()->getParam('start'), or $this->getRequest()->getParams() will give you the GET params. So if this isn't working for you something else is going wrong somewhere.
Is 'transactionsExternal.php' definitely part of your ZF app?
How are your controllers and actions set up?
Zend Framework 1 works with key/pair values for get parameters. So you might have a transaction controller and a get action. A request would look like so:
domain.com/transactions/get
To append and ID GET parameter you would do:
domain.com/transactions/get/id/10
Then In your controller action you would do the following to get the id value:
$request = $this->getRequest();
$request->getParam('id');
Zend Framework 1 had a very simple way of parsing URL routes and setting found params in the $_GET superglobal for easy access. Sure, you could use ->getParam($something) inside the controller, but if the param was found in the URL, it was also accessible via $_GET.
Example for url mypage.com/mymodule/mycontroller/myaction/someparam/5:
ZF1
$this->getParam('someparam'); // 5
$_GET['someparam']; // 5
ZF2
$this->getEvent()->getRouteMatch()->getParam('someparam'); // 5
$_GET['someparam'] // undefined index someparam
Obviously, the difference is that ZF2 does NOT put the route params into the $_GET superglobal.
How do I make it put the parsed parameters into the $_GET superglobal, since extending the controller and just defining a constructor that does that is out of the question (because RouteMatch is not an object yet and cannot be called from the controller's constructor)?
Calling $_GET = $this->getEvent()->getRouteMatch()->getParam('someparam'); in every one of my controllers would work, but I don't want that.
In other words, following the example URL from above, I want to be able to do $_GET['someparam'] and still get the value "5" in any component in the application.
Edit: Looks like I wasn't clear enough, so I'll try to clarify some more. I want whatever param I enter in the URL via /key/value formation to be available in $_GET instantly. I don't really have a problem with getting the param, I know how to get it and I extended Zend's controller so I can just call $this->getParams again like in ZF1, and now all controllers extend that one, I just want the params from the URL to automatically be in $_GET as well, so I can access them easily in third party components which use $_GET natively.
Edit 2: Updated as reaction to Samuel Herzog's answer:
I don't really mind invalidating the SRP in this case, because the libraries are built in such a way that they need direct access to $_GET - they do their own filtering and directly depend on this superglobal. They also directly fetch $_FILES and $_POST for processing, it's just the way their code works.
I've made the following method in the abstract controller:
$this->mergeGet(); which basically makes $_GET absorb all the route matched params and everything works as intended, but seeing as the libraries will be required in every controller/action, it might get tedious to call that method every time. If only the controller had an init() method like in ZF1...
In ZF2, Im using this
$getparams = $this->getRequest()->getQuery();
First of all, you shouldn't use $_GET or any other superglobal directly if you're building on an object oriented stack. The SRP is invalidated this way.
If you have no possibility to change the way of your (3rd party?) librarys to change you might want to hook into the MvcEvent, listen to --event-- and then get the RouteMatch, you may fill $_GET with a simple loop.
For a most-performant answer, you should know if the named library will be needed for every action, just for one module, or only in certain controllers/actions.
If the latest is your use-case, you should write a controller plugin instead.
some example code for the first approach:
namespace YourModule;
use Zend\EventManager\EventInterface as Event;
use Zend\Mvc\MvcEvent;
class Module
{
...
public function onBootstrap(Event $ev)
{
$application = $e->getApplication();
$eventManager = $application->getEventManager();
$eventManager->attach('route', function(MvcEvent $mvcEvent) {
$params = $mvcEvent->getRouteMatch()->getParams();
foreach ( $params as $name => $value )
{
if ( ! isset($_GET[$name])
{
$_GET[$name] = $value;
}
}
});
}
}
You could use in your controlller:
$paramValue = $this->params()->fromQuery('your_param_here');
Regards
I had a read of the documentation, but couldn't see an example of how it would be possible to use the variable in traditional PHP style of $_POST['var']
I'm pretty sure my URL is legit:
domain.com/module/controller/action/var/value/
Using the above as an example:
$var didn't work
$_POST['var'] didn't work
How is it done?
As presented in zend controller's documentation page you can retrieve parameters like this:
public function userinfoAction()
{
$request = $this->getRequest();
$username = $request->getParam('username');
$username = $this->_getParam('username');
}
You should also note that request documentation states:
In order to do some of its work, getParam() actually retrieves from several sources. In order of priority, these include: user parameters set via setParam(), GET parameters, and finally POST parameters. Be aware of this when pulling data via this method.
If you wish to pull only from parameters you set via setParam(), use the getUserParam().
Additionally, as of 1.5.0, you can lock down which parameter sources will be searched. setParamSources() allows you to specify an empty array or an array with one or more of the values '_GET' or '_POST' indicating which parameter sources are allowed (by default, both are allowed); if you wish to restrict access to only '_GET' specify setParamSources(array('_GET')).
$this->_request->getParam('paramName', $defaultValueToReturnIfParamIsNotSet);
I am using the Zend framework and what I need is to construct a url in my view. Normally in regular php code I'd just grab the GET Variable by using the global $_GET. However with Zend I'm setting it to clean URIs so :
?ac=list&filter=works&page=2
Looks like
index/ac/list/filter/works/page/2
In my view I'm setting a links cs such that if the GET variable filter equals works then the color of that link would be different and it would point to the same page only linked as so:
index/ac/list/filter/extra/page/2
And like wise I have a number of other links all which just one GET value - how do I set this up - I am using the Zend framework.
To access a request variable direct in the view you could do:
Zend_Controller_Front::getInstance()->getRequest()->getParam('key');
But as others have said, this is not a good idea. It may be easier, but consider other options:
set the view variable in the controller
write a view helper that pulls the variable from the request object
If you need to access a GET parameter from a view, i think you're doing it the wrong way.
I suggest that you set up a route with all your parameters, and then use $this->url from your view to render a valid and correct url.
Fore som more info, check out the following blog post (no, i'm not the author):
http://naneau.nl/2007/07/08/use-the-url-view-helper-please/
Edit:
If you want to be 'lazy', you can set a view parameter from your controller by doing $this->view->param = $this->_getParam('param'). You can then access param from your view by doing echo $this->param;. However, i do not recommend this.
To access the Request Object one way that is common is to save it in the Registry.
http://osdir.com/ml/php.zend.framework.mvc/2007-08/msg00158.html
http://www.zfforums.com/zend-framework-components-13/model-view-controller-mvc-21/how-access-request-object-customizing-layout-view-3349.html
You can pass it in from a controller: $this->view->page = $this->_getParam('page');.
Footnote: I agree with #alexn.
i am using Zend Framework v1.11 and i am doing like this
In Controller
$this->view->request = $this->_request;
then in View you can access any Request param like this
<h3><?= $this->request->fullname ?></h3>