| Re: error while call php function in javascript? [message #173882 is a reply to message #173877] |
Wed, 11 May 2011 13:38   |
Gregor Kofler
Messages: 69
Registered: September 2010
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Am 2011-05-11 14:10, Amit Prakash Pawar meinte:
> function encrypt_url($string)[/color]
[color=blue]> {[/color]
[color=blue]> $key = "1AT2#mr(luv^iU3tp>";[/color]
[color=blue]> $result = '';[/color]
[color=blue]> for($i=0; $i<strlen($string); $i++)[/color]
[color=blue]> {[/color]
[color=blue]> $char = substr($string, $i, 1);[/color]
[color=blue]> $keychar = substr($key, ($i % strlen($key))-1, 1);[/color]
[color=blue]> $char = chr(ord($char)+ord($keychar));[/color]
[color=blue]> $result.=$char;[/color]
[color=blue]> }[/color]
[color=blue]> return urlencode(base64_encode($result));[/color]
[color=blue]> }
>
> $data=encrypt_url('http://www.test.com');
> Normally through PHP code i got encrypted value ->
> pqW1xGxSnOmf46Pqw9zJYdffqw%3D%3D
>
> When i try through javascript getting some wrong output
>
Depends what you mean by "some wrong output". I suppose this "wrong
output" should tell you all you need. (Error reporting is activated, I
assume...)
> // Javascript
> [/color]
[color=blue]> var my_url=document.getElementById('url').value;[/color]
[color=blue]> [/color]
[color=blue]> // my_url='http://www.test.com';[/color]
[color=blue]> [/color]
[color=blue]> var final_post_url=<?=encrypt_url(my_url)?>;[/color]
How do is PHP supposed to know about a JS variable? In this case the
server-side PHP assumes that my_url is a constant, which it won't find
(and issue a warning).
You'd have to send your JS value to the server, have it processed there
and work with the response. Though it escapes me, why you'd like to
encode a URI, which is already on the page - plain and un-encoded.
[color=blue]> alert(final_post_url);[/color]
[color=blue]>
> how to get correct encrypted data through java script?
It might be useful to know the differnce between server-side and
client-side scripting.
Gregor
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