i want to send variables when using the codeIgniter form helper.
The function in the controller takes two variables like:
public function doSomething($var1, $var2){
...
}
In the form helper I want to do something like this:
echo form_open('Controller/doSomething($var1, $var2)');
echo form_submit('doIt', 'Do it');
How can I do this because the above doesn't seem to work.
Hidden Fields
echo form_open('controller/method', array('id'=>'id'), array('var1'=>$var1));
OR
Via Route
echo form_open("controller/method/$var1/$var2", array('id'=>'id'));
Related
in laravel routing we can pass a closure and it returns the result. so my question is why it cannot echo or print the result than returning it?. is it the closurity property of php or laraveles routing rule.
Route::get('/',function(){
return 'hello world';
});
Because Laravel as a framework passes the result to other functions, for example to add headers to the response. This wouldn't work if you just echoed something there.
I am wondering if it is allowed to access/get/use the variable from one function to another function within one controller?
Thank you.
Try Something like this.
class Index extends CI_Controller {
protected $var1;
public function index() {
$this->setVar1();
echo $this->var1; // print $var1
}
public function setVar1() {
$this->var1 = 1;
}
}
$superduper = 'superduper' ;
available only locally within the method (function)
or passed like
$this->reviews->insertToReviews($superduper) ;
versus
$this->superduper = 'superduper' ;
as soon as $this->variablename is declared in a controller its instantly available to:
any method in the controller
any method in any model that is called by the controller
any view file called by the controller
so without passing the variable - in a view you can use
echo 'my lunch is ' . $this->superduper ;
but often its better to explicitly pass values to the view especially if they are unique to the method - it makes it easier to see what is going on. so in that case in controller:
$data['superduper'] = $this->superduper ;
and in view
echo 'my lunch is ' . $superduper ;
Now when anyone looks at the method in the controller - we can see that superduper is being passed to $data. the point is that even though you can avoid passing variable names to methods or the view by declaring $this->somename - if you pass them locally it can make it easier to see what is going on.
The flip side is something like:
$this->error_message = "Error retrieving database records";
is awesome. you can have error messages in any method and they will be automatically available no matter what else happens. so then in your view file have something like
if($this->error_message != '') { echo $this->error_message ;}
this is especially helpful while you are building the site.
I have stored a variable in register by Mage::register('captcha', $var); in helper. And in the controller i tried to retrieve the variable by using Mage::registry('captcha'); But i dont getting any values here. Please help me to solve this.
In your helper file create a function like below :
public function getCaptcha(){
$var = 'myValue123';
Mage::register('varun', $var);
return Mage::registry('varun');
}
In your controller function:
$registryValue = Mage::helper('yourModule')->getCaptcha();
echo registryValue ; //prints myValue123
Hope it helps !!!
It's look like syntax is right.
Please first try to set some static value like $var="test"
Mage::register('captcha', $var);
after that got this value in controller.
Mage::registry('captcha');
if you got this value test then i think you have problem with $var in your helper.
Let me know if you have any problem
'captcha' is already in use, so magento never set your data in registry. Change the name, for example 'captcha1'
Mage::register('captcha1', $var);
I'm having a problem regarding passing parameter from url. The function I use sometimes give the correct result and sometimes not.
here is my controller functions:
public function link_gen(){
$text = "i have lost my password please help me";
$encrypted_text = $this->encrypt->encode($text);
$encrypted_url = urlencode($encrypted_text);
echo $encrypted_url. br();
echo br(). $this->retrive(urldecode($encrypted_url));
echo anchor('encryption/ret_back?username='.$encrypted_url, 'click me');
// echo anchor('encryption/ret_back/'.$encrypted_url, 'click me');
}
public function ret_back(){
// echo br(). $this->retrive(urldecode($str));
$user = $this->input->get('username');
echo br(). $this->retrive(urldecode($user));
echo $user. br();
echo "hellooooo". br();
}
For the sake of testing I'm encrypting a text then encode it in URL using urlencode(), then I pass this string to another function using URL, and then decode in the string in URL using urldecode() and then decode the text. But when I run this, sometimes the decoded text appears and sometimes it does not.
Can anybody tell me the reason and solution for this?
I want to use this in a 'forgot password' module.
It depends on how you create your links and how do you retrieve the data from url.
Anyway these are simple examples to get url data:
get from $_GET[] (http://site.com/?q=hello+world)
in this case you get the param q with echo $this->input->get('q',true);
get data from uri segments (http://site.com/id/230)
in this case you get id value via echo $this->uri->segment(2);
Then, if data in url exists it is not possible that the system didn't get that, so be sure data is in your url when opening url.
I am creatting a Code Igniter project in which I want to pass a variable through the URL like a get statement, like this:
url: /site/cake/1
controller function: cake($var)
but when the variable is left blank, I receive an error, how can I get code igniter, to ignore this?
In your controller, do this:
function cake($var = null) {
// your other code here
}
When $var isn't present in the URL, it will be set to null and you'll receive no error.
To explain why Colin's answer works:
The issue you had, was that there was no default value for that controller function. In php, creating a default value for a function parameter is done by assigning it a value in the function definition ($var = false). Now when the cake() function is called with no parameter, it will set $var to false by default.