My variable with javascript looks like this:
var email = encodeURIComponent($('input[name=\'email\']').val())
email is clearly being encoded and is producing this when sent to server: email%2540yahoo.com
What function in PHP will decode this value properly?
I've tried using html_entity_decode
The correct url encoding for # is %40.
When a url, for example from an e-mail, with the encoded # character in it, is redirected using a rewrite rule, it will be rewritten as %2540 (the % is encoded as %25). If you keep rewriting / redirecting, you will replace % with %25 each time, ending up with %25252540 (or more 25, you get the picture).
For example clicking this:
http://example.org?email=info%40example.org
Will produce after a rewrite and redirect using a rewrite rule:
https://example.org?info%2540example.org
in the browser address bar, which does not correctly translate to info#example.org in php.
What function in PHP will decode this value properly?
You don't need to decode anything. $_GET["email"] and $_POST["email"] will work just fine. The encodeURIComponent function is used to properly url encode a url to avoid having invalid urls. If you have a valid url, PHP will successfully be able to read the parameters.
echo urldecode(urldecode('email%2540yahoo.com')); // email#yahoo.com
Try urldecode(<value_to_decode_here>);
Related
I want to use the GET method to send a string to the receive page, but if the string includes '#', the receiver page can only get the sub string before the '#'.
As the following example:
test
When I click the 'test' link to open the 'test.php' page, which has the following code:
<?php
if(isset($_GET["q"])) {
echo $_GET["q"];
}
?>
It only display 'string1' on the page, '#string2' is missing.
So I want to know what happened to the string, and how to fix this problem.
Thank you for any help!
=======Update===========
With the help of #Eric Shaw and #JP Dupéré, I know how to fix this problem.
The simplest way is encoding the string before using the get method.
To encode the query string, you can:
use urlencode() in PHP, and urldecode() can decode the string.
use encodeURIComponent() in JavaScript, and decodeURIComponent() can decode the string.
Try
urlencode("string1#string2")
before calling GET.
The #foo is used to jump to an <a name="foo"/> tag on the page, rather than viewing the top of the page when the browser loads it.
The stuff after the # is processed by the browser and NOT sent to the server.
You can escape the # and the escaped version will be sent to the server, i.e.
test
will do what you want I think
This escaping is also a common technique to get the # passed along in the URL for redirectors.
There is a string XX&YY and I'm passing it to another page. ie, localhost/sample/XX&YY/1 for some processing. Now when I try getting the name value on the other side I'm able to get only XX and not full XX&YY. How to rectify it? Any ideas?
Note : here is my url localhost/sample.php?name=somevalue&pageno=somevalue has been url re-written to localhost/sample/name/pageno.
You have to escape the URL . You can use rawurlencode() or urlencode() to encode your URL.
sidenote: Difference of the 2 functions
If I'm understanding correctly, this is the URL to your script:
http://localhost/sample/name/pageno
Which is then rewritten by your web server to this:
http://localhost/sample.php?name=somevalue&pageno=somevalue
Then, this is how you should format the URL:
$url = sprintf('http://localhost/sample/%s/%s',
urlencode('XX&YY'),
urlencode('1')
);
I have been using URL decode on encoded URL variables from $_get.
The current problem I am facing is I have a URL encoded like this:
blah.php?url=http%3A%2F%2Fm.youtube.com%2F#/watch?feature=player_embedded&v=zd7c5tQCs1I&desktop_uri=%2Fwatch%3Fv%3Dzd7c5tQCs1I%26feature%3Dplayer_embedded
I'm not sure what kind of encoding this is, can someone help me? When I use just "urldecode" on this it just returns m.youtube.com
Edit: My problem is not that url decode isn't working, it works if I manually enter this encoded URL and use urldecode(), but when this encoded url is in the actual pages url and I use the _GET function then I try to decode it it stripes off everything after the "#" in the URL.
<?php print urldecode($_GET["url"]);?>
It returns
"http://m.youtube.com/"
instead of
"http://m.youtube.com/#/watch?feature=player_embedded&v=zd7c5tQCs1I&desktop_uri=/watch?v=zd7c5tQCs1I&feature=player_embedded"
I think the issue is that the pound sign is not encoded, if I refresh the page it strips away the pound sing and everything after it, so how do I get around this? Can I still retrieve the info from "GET" even though there is a pound sign? (#)
The problem is that the full link has multiple = signs, and browser cant determine, that the other = signs refer just to the url= parameter.
in your case, at first, you need to use function before link is given to url= parameter:
========================= 1) JAVASCRIPT ======================
<script type="text/javascript">
var mylink = encodeURIComponent('http://testest.com/link.php?name=sta&car=saab');
document.write("http://yoursite.com/url=" + mylink);
</script>
========================= 2)or PHP ===========================
<?php
$mylink = 'http://testest.com/link.php?name=sta&car=saab';
echo 'http://yoursite.com/url='.urlencode($mylink);
?>
so, your output (url parameter) will get like this
http://yoursite.com/url=http%3A%2F%2Ftest.com%2Flink.php%3Fname%3Dsta%
so, the url parameter will get the encoded url.
after that, your .php file needs to decode that "url" parameter-
<?php
$varr = $_GET['url'];
$varr = preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($varr));
$varr = html_entity_decode($varr,null,'UTF-8');
echo $varr;
?>
that will give you the correct value
I read on php.net about urldecode function and they say that superglobal $_get is already decoded, ex: "The superglobals $_GET and $_REQUEST are already decoded. Using urldecode() on an element in $_GET or $_REQUEST could have unexpected and dangerous results."
It is encoded into ASCII format .
see http://www.w3schools.com/tags/ref_urlencode.asp
So here is the problem, the pound sign (#) (Hash) wasn't encoded... since I can't go back and re-encode it I have to use javascript (ex. alert(window.location.hash);) to send me the full URL after the hash then I append it to PHP's version of the URL, I THEN use a find and replace function in PHP to replace the "#" with "%23", then I use the urldecode method and it returns the full proper url decoded.
This encoding is called percent encoding or URL encoding. You can use urldecode for decoding it. (Example: http://phpfiddle.org/lite/code/0nj-198 )
I've been visiting stackoverflow.com for a long time and always found the solution to my problem. But this time it's different. That's why I'm posting my first question here.
The situation looks like this: My website provides a directory explorer which allows users to download whole directory as a zip file. The problem is I end up with error when I want to download a dir containg special characters in it's name, i.e. 'c++'. I don't want to force users to NOT name their folders with those special chars, so I need a clue on this one. I noticed that the whole problem comes down to GET protocol. I use ajax POST for example to roll out the directory content, but for making a .zip file and downloading it I need GET:
var dir_clicked = $(e.target).attr('path'); //let's say it equals '/c++'
window.location = 'myDownloadSite.php?directory_path='+dir_clicked;
I studied whole track of dir_clicked variable, step by step, and it seems that the variable in adress is sent correctly (I see the correct url in browser) but typing:
echo $_GET['directory_path']
in myDownloadSite.php prints
'/c'
instead of
'/c++'
Why the GET protocol is cutting my pluses?
You can use:
encodeURIComponent() //to get the url then use
decodeURIComponent() //to decode and access ur filename.
Use urlencode() and urldecode() on server side.
Try encoding your URI with encodeURI(url) JavaScript function.
window.location = encodeURI('myDownloadSite.php?directory_path=' + dir_clicked);
Maybe use encodeURIComponent() and then remove all %xx occurrences?
When the information is posted it is encoded with special chars, sounds like you just need to decode them before using the information.
You can use php function urldecode() to decode the folder names before using them...
$_GET[directory_path]=urldecode($_GET[directory_path]);
I have a really strange problem
ok the problem is thus
let say I have this url
http://www.example.com/?file=WFS010C.part3.rar&url=http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar
If I do base64_encode($_GET['url'])
the results is this
aHR0cDovL3d3dy5maWxlc2VydmUuY29tL2ZpbGUvdkVwQnlwMy9XRlMwMTBDLnBhcnQzLnJhcg==
after applying this rewrite condition
RewriteEngine On
RewriteBase /
RewriteRule ^file-(.*)-(.*)\.html$ index.php?file=$1&url=$2
The url is like this
http://www.example.com/file-WFS010C.part3.rar-http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar.html
now if I do base64_encode($_GET['url'])
the results is this
aHR0cDovd3d3LmZpbGVzZXJ2ZS5jb20vZmlsZS92RXBCeXAzL1dGUzAxMEMucGFydDMucmFy
**Note that the value of $_GET['url'] is exactly the same in both cases if printed without encoding!!!!
how come same string giving different results just after using rewrite ?**
Does anyone know whats the problem
You can use base64_decode to see whether they are same.
In fact:
The first one is
http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar
And the second one is
http:/www.fileserve.com/file/vEpByp3/WFS010C.part3.rar
You can see, they are not same.
You are rewriting your URl so the part after the second - is stored in url parameter. So in second case you receive url = http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar.html. Just like you had before.
What you are encoding is marked with bold:
With first url
http://www.example.com/?file=WFS010C.part3.rar&url=http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar
With second URL you are rewriting it to
http://www.example.com/index.php?file=WFS010C.part3.rar&url=http://www.fileserve.com/file/vEpByp3/WFS010C.part3.rar
UPDATE your second base64_encoded URL is decoding to http:/www.fileserve.com/file/vEpByp3/WFS010C.part3.rar. Note single / after http. Are you sure you have no typos in second URL?
First you need to urlencode the 'url' parameter. I'm guessing the parameter does not get correctly parsed because of invalid characters like '/' in it.