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 have a url "http://localhost/codeigniter/index.php/manual_export/". I need to get last segment from the url which is suppose to be a id. So for example "http://localhost/codeigniter/index.php/manual_export/2". I need to get the last segment which is "2".
I tired to use following code:
$id = end($this->uri->segment_array());
This works when I don't add "2" to the url and gives me "manual_export". However when I pass the id to the url I get an error "The page you requested was not found.". I think this is to do with routing. How can I fix this error.
the other way to do it is by defining a route, it will then be converted to a param
so for example if your controller is called manual_export and the method is getrecord
in the file application/routes.php
$route['manual_export/(:any)'] = "manual_export/getrecord/$1";
in your controller manual_export
function getrecord($id){ // etc etc }
You should use:
$this->uri->segment(n);//in your case n == 2 count starts just after index.php
Docs.
I'm using htmlspecialchars() on input field for user last name to prevent xss, but it's not working..
Let's say $user_data->user_last_name; is my user last name, so I did:
htmlspecialchars( $user_data->user_last_name, ENT_QUOTES, 'UTF-8' );
When I try to save user last name as 'Lastname<script>alert("xss")</script>', I get JS alert with 'xss' message.
Any clue maybe?
Try this, may work:
$string = htmlentities($user_data->user_last_name, ENT_QUOTES, 'ISO-8859-15');
While retrieving the input you should use:
$value = $this->input->post('input_name', true);
Here, true will clean the input value of xss.
It works, but The output is interpreted by your browser as HTML
// use That Simple Line Above Your Code To See The Real output
<?php
header('Content-Type: text/plain');
?>
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 $this->uri->segment(2);
Then, if data in url exists it is not possible that the system didn't get that, so be sure data is in your url when opening url.
how do i pass a large string as a variable in codeigniter? i am trying show the user an article, if the article has more than 800 characters and less than 3044 characters i am showing it in a jquery pop up window, and if the article is more than 3044 charcters i want to pass the article body and title through the url to a controller function.
here is what i have tried:
<?php
if(strlen($home_content[1]['content'])>800 && strlen($home_content[1]['content'])<3044)
{
$substr=substr($home_content[1]['content'],0,786);
echo $substr.'<p id="button"><i>read more...</i></p>';
}
else if(strlen($home_content[1]['content'])<800)
{
echo $home_content[1]['content'];
}
else
{
$substr=substr($home_content[1]['content'],0,786);
echo $substr.'<br/>';
echo anchor('site/read_article/'.$home_content[1]['title'].$home_content[1]['content'],'<i>read more...</i>');
}
?>
and this is the url after passing the data:
http://192.168.1.111/my_project/site/read_article/title%20mid%20left%3Cp%3Etesttesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lifesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lifesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.%20True%20Mirror,%20can%20come%20to%20life.ife.%20True%20Mirror,%20can%20come%20to%20life.ife.%3C/p%3E%3Cp%3E%C2%A0%3C/p%3E%3Cp%3Etesttesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lifesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lifesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.%20True%20Mirror,%20can%20come%20to%20life.ife.%20True%20Mirror,%20can%20come%20to%20life.ife.%3C/p%3E%3Cp%3Etesttesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20lBut%20we%20have%20already%20arrivesafOnly%20True%20Light,%20reflected%20in%20a%20True%20Mirror,%20can%20come%20to%20life.ife.testtesthave%20already%20arrivesafOnly%20True%20Light,%3C/p%3E.html
and i get this error message:
An Error Was Encountered
The URI you submitted has disallowed characters.
how do i do it correctly? the url looks very messy, how do pass the string and still have a clean url? please help me with it.
Why not pass the article ID instead? You could then access the article through the controller function, count the characters and decide the method of display.
Alternatively, you could use CI's Session Flashdata to pass the article title/body to the next controller and access it that way.
The URI is failing as security is set up to deny specific characters being passed in the URL. This is for your protection, but, although not recommended, could be disabled in the config files if required.