i have this situation:

1. i have a textbox for the user to encode the url
2. by $_POST['x'] ill evaluate the url if valid or not using
file_get_contents().
if(!file_get_contents($x){
// do actions here..
}

however i dont know if what is wrong, file_get_contents() works
perfectly on
my local machine but upon loading to our webserver, it doesn't work
at all.

3. the next action is to $x as param value 'http://www.my...com?url='.
$x.
now this url will then dynamically produce another url. and that
new url is
the one that i want to get and assigned it to a string.

but i want all process to be totally invisible to the user. because
after
successfully getting the new url i post a message like your new url
is ...
is this possible? how to do this?

tnx

I don't understand your last question, but as for why file_get_contents isn't working, you should make sure that your server has allow_url_fopen set to on. Some servers have this off.

i think yes, because on my local server it is set to on. i also tried fopen and get_header still the same works fine on my local machine but doesnt upon uploading.

is there another way for me to check the validity of the url that doesnt reli with allow_url_open?

regarding my last question. i already check the url is valid, and it's a yes. next i will use this url as a parameter for a certain site www.mysite.com?url=..... after passing the parameter mysite.com will then produce a dynamic url, and i want to get the value of this new url.

For your file_get_contents issue, you'd need to give an error message or more info. Your claim is that the code works on one server and not the other. That's not usually because of the code, but because of different server configurations.

For a URL of the form www.mysite.com?url= , you'll have trouble as that's not correctly formatted. At a minimum it should look like www.mysite.com/?url= at which point the default index script will be run (usually index.html or index.php). If it's an HTML or other file, I can't help you (HTML cannot access stuff server side without SSI afaik). If it's PHP, the URL is available as $_GET['url']

check phpInfo() on your server if will tell you how allow_url_open is set.

-JasonR

so if allow_url_open is off is there another way for me to check if that certain is valid or not?

You should be able to do it with CURL. Most implementations I have see with open URL off still allow CURL.

-JasonR

Maybe with Fsock Open

can you please tell me how to use curl or fsock? if possible just a simple example

Originally Posted by shotokan99

can you please tell me how to use curl or fsock? if possible just a simple example

Hi man - here is curl example

PHP Code:

<?php
$url="http://www.your-url-address";
$curl_handle=curl_init();
curl_setopt($curl_handle,CURLOPT_URL,'$url');
curl_setopt($curl_handle,CURLOPT_CONNECTTIMEOUT,2);
curl_setopt($curl_handle,CURLOPT_RETURNTRANSFER,1);
$buffer = curl_exec($curl_handle);
curl_close($curl_handle);
if (empty($buffer))
{
    print "Sorry - no content.<p>";
}
else
{
    echo "<h1>HERE IS CONTENT:</h1><hr> $buffer";
}
?>

@hostingon
i tried your sample code and it always give "sorry no content" even if i gave a valid url. what have gone wrong?

our hosting support said..this can be achieved using .htaccess is it possible? how?