valiating file extension / url

netmastan

I m trying to make simpe banner rotation script(support gif/jpg and flash file). I am having problem with flash file.

how to check url . ?

letsay I have $imageurl variable which holds the banner link.

if the image url is gif or jpg (ie. http://www.something.com/something.gif)

then i want to display follwoing code

if the image url is swf (ie. http://www.something.com/something.swf)

then i want to display

so.. i want to use the same variable for pictures and flash file.

Any smart functin or technic ?

cheers

MrAlaska

I hardly qualify as a smart functin or technic, but I think I would approach this using a string search function, but there are a few other techniques you can employ if something this light weight won't cut it:

if (strstr($url, '.swf'))
http://www.php.net/manual/en/function.strstr.php

Weedpacket

I'd be happier with if(strrchr($url,'.')=='.swf') ... to make sure you really are looking at the file extension.

intenz

The long/hard way... 😃

The function...

function CheckExt($strUrl)
{
        $arrUrl = parse_url($strUrl);
        $arrUrl['path'] = substr($arrUrl['path'],1);
        $arrUrlParts = explode('/',$arrUrl['path']);
        $arrUrlParts = array_reverse($arrUrlParts);
        $arrFileParts = explode('.',$arrUrlParts[0]);
        $arrFileParts = array_reverse($arrFileParts);
        return $arrFileParts[0];
}

Let's test the function...

if(CheckExt('http://www.something.com/just/a/test/path/file.swf') == 'swf')
        echo 'Yes, it is a SWF extension!';
else
        echo 'No, it is not a SWF extension!';

netmastan

thanks..guys it's working . I have used this code

if(strrchr($imageurl,'.')=='.swf')

very simple and works...

Now i have new problem.. How do i count clicks on flash file

this is the code I am using..it's working only with gif or jpg file.But does not counts the clicks on flash file.

function clickbanner($bid) {
    global $prefix, $dbi;
    $bresult = sql_query("select clickurl from ".$prefix."_banner where bid=$bid", $dbi);
    list($clickurl) = sql_fetch_row($bresult, $dbi);
    sql_query("update ".$prefix."_banner set clicks=clicks+1 where bid=$bid", $dbi);
    Header("Location: $clickurl");
}