check and read file from subdomain

Question

i have subdomain sub.domain.com. the subdomain points on a directory root/sub of my root dir on my Webserver. now i have pdfs on another dir on the server root/pdf. How can i check if a specific pdf exists and if it exists i want to copy the file to a temp dir of the subdomain.

if i call a php script sub/check.php an try to check a pdf that exists :

$filename = "http://www.domain.com/pdf/1.pdf";
if (file_exists($filename)) 
{
    "exists";
} 
else 
{
    "not exists";
}

It always shows : not exists. If i take the url and put it in a browser - the pdf will be shown.

How can my php script in the /sub-folder access files in the root or root/pdf ?

bye jogi

Is your question answered by now? – nl-x Sep 12 '13 at 21:29 — nl-x, Sep 12 '13 at 21:29

Shankar Narayana Damodaran · Accepted Answer · 2013-09-12T07:45:07.763

0

file_exists() function does not work that way. It does not take remote URLs.
This function is used to check the file that exists on the file system.

Check the manual here

Make use of cURL to accomplish this.

    <?php
    $ch = curl_init("https://www.google.co.in/images/srpr/logo4w.png"); //pass your pdf here

    curl_setopt($ch, CURLOPT_NOBODY, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,false);
    curl_exec($ch);
    $retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    if($retcode==200)
     {
      echo "exists";
     }
   else
     {
      echo "not exists";
     }

    ?>

edited Sep 12 '13 at 07:45

answered Sep 12 '13 at 07:36

Shankar Narayana Damodaran

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ok, thanks so far. but how can i copy the file to my sub-dir ? – user1121575 Sep 12 '13 at 08:08
`system("cp http://www.domain.com/pdf/1.pdf http://www.domain.com/sub/temp/1.pdf")` – user1121575 Sep 12 '13 at 08:20
and `system("cp ../pdf/1.pdf ./temp/1.pdf");` – user1121575 Sep 12 '13 at 08:25
@user1121575, That is not related to the question right ? Anyways you can look at this thread http://stackoverflow.com/questions/9843933/copy-file-from-remote-server-or-url – Shankar Narayana Damodaran Sep 12 '13 at 08:48
i thought it is possible to use curl for both ways. i want to check and read the file - so i thought it is related to the question – user1121575 Sep 12 '13 at 08:51

score 0 · Answer 2 · answered Sep 12 '13 at 07:51

0

file_exists() looks locally on the machine if a file exists. But what you are doing is using a URL.

Since you say your script is in the root folder, you need to do change

$filename = "http://www.domain.com/pdf/1.pdf";

into

$filename = realpath(dirname(__FILE__)) . "/pdf/1.pdf"; // first part gets current directory

answered Sep 12 '13 at 07:51

nl-x

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my script is not in the root folder. it is in the /sub - folder – user1121575 Sep 12 '13 at 07:55
@user1121575 Ok, then do: `$filename = realpath(dirname(__FILE__)) . "/../pdf/1.pdf";` The .. will take you one directory back. – nl-x Sep 12 '13 at 08:00

check and read file from subdomain

2 Answers2