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')
);
Related
Ho you all, I've got a script in a Wordpress post that sends the value of 4 variable to a URL.
The fact is that since natively WordPress converts & to &, the URL that is meant to recive those variable cannot get them, since the final URL will be
http://localhost/php/add.php?a=VALUE1&b=VALUE2&c=VALUE3&d=VALUE4
instead of http://localhost/php/add.php?a=VALUE1&b=VALUE2&c=VALUE3&d=VALUE4
Now I know that it is possible to fix this problem by commenting to lines in wp-includes/formatting.php, but I'm looking for a PHP function that can convert the URL with '&' to an URL with just '&'.
Is it possible? Thanks!
You will need to use htmlspecialchars_decode(). Consider this example:
$url = 'http://localhost/php/add.php?a=VALUE1&b=VALUE2&c=VALUE3&d=VALUE4';
$url = htmlspecialchars_decode($url);
echo $url;
// http://localhost/php/add.php?a=VALUE1&b=VALUE2&c=VALUE3&d=VALUE4
I have a small problem with my PHP script. I want to be able to have a URL within a query string so it would look like this:
http://example.com/?url=http://google.com/
This works absolutely fine and $_GET['url'] will return http://google.com.
The problem is when the URL in my query string already has query string, for example:
http://example.com/?url=http://www.amazon.com/MP3-Music-Download/b/ref=sa_menu_mp3_str?ie=UTF8&node=163856011
will return:
http://www.amazon.com/MP3-Music-Download/b/ref=sa_menu_mp3_str?ie=UTF8
and I want it to return:
http://www.amazon.com/MP3-Music-Download/b/ref=sa_menu_mp3_str?ie=UTF8&node=163856011
I am using PHP for server side.
Could anybody please help?
Update
I am using Codeigniter, so if this is the reason why it isn't working as it should then please let me know.
You need to encode the url passed as query argument:
If you send it from PHP, use urlencode or rawurlencode.
If you send it from JS, use encodeURIComponent.
Use urldecode() to pass query string
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 $_REQUEST could have unexpected and dangerous results."
It is encoded into ASCII format .
see http://www.w3schools.com/tags/ref_urlencode.asp
So here is the problem, the pound sign (#) (Hash) wasn't encoded... since I can't go back and re-encode it I have to use javascript (ex. alert(window.location.hash);) to send me the full URL after the hash then I append it to PHP's version of the URL, I THEN use a find and replace function in PHP to replace the "#" with "%23", then I use the urldecode method and it returns the full proper url decoded.
This encoding is called percent encoding or URL encoding. You can use urldecode for decoding it. (Example: http://phpfiddle.org/lite/code/0nj-198 )
My variable with javascript looks like this:
var email = encodeURIComponent($('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>);
I have a URL like:
http://www.google.com/test.html?d=1232&u=32
and I want to add it as a part of a GET query string like:
http://www.mysite.com/index.html?a=123&d=http://www.google.com/test.html?d=1232&u=32
Note the double "d" used. I want the URL sent to be just a url and not be read for it's query string...
What is the best way to do this to avoid problems?
You can use the urlencode() function.
Example:
$url = 'http://www.mysite.com/index.html?a=123&d='
. urlencode('http://www.google.com/test.html?d=1232&u=32');
You can use urlencode() to put that in the URL without having it interfere with anything else you have in there.
URL-encode the second url:
http://mysite.com/index.html?a=123&d=<?php echo urlencode('http://google.com/etc..'); ?>
You can assign a url to a variable and have it be query-string safe by using urlencode() (http://us3.php.net/urlencode). So you could do:
$url = 'http://www.mysite.com/index.html?a=123&d=' . urlencode('http://www.google.com/test.html?d=1232&u=32');
In this example the query-string var 'd' now houses all the contents of the second url. You will have to urldecode() it on the receiving end in order to extrapolate the data.