Counting .jpg images

[Owen]

I have a wallpapers directory with a lot of subdirectories like this:

wallpapers/category/item/file.jpg

for every jpg there is also a thumnail, so I'd like to divide the total number of jpg's by 2 so I get my wallpaper count.

I have had a looka t some functions at php.net but wasnt able to figure it out...

[Xenon]

on php5 this might help:
http://de2.php.net/manual/de/function.scandir.php

on php4 you can use the dir class:
http://www.php.net/manual/class.dir.php

[Owen]

Would I somehow use the count function to count the files that class dir outputs?

[Xenon]

should be possible, but i don't know if you have to create a new dir class for each subdirectory or not.

I haven't worked much with this class, it just know it's name an thought it may help ya :)

[Owen]

<?
function CheckExt($filename, $ext) {
$passed = FALSE;
$testExt = "\.".$ext."$";
if (eregi($testExt, $filename)) {
$passed = TRUE;
}
return $passed;
}

//Define an array of common extensions.
$exts = array("gif","jpg$|\\.jpeg","png","bmp");

$dir = opendir("/home/cardesk/public_html/wallpapers/");
$files = readdir($dir);

while (false !== ($files = readdir($dir))) {
foreach ($exts as $value) {
if (CheckExt($files, $value)) {

$count++; //Keep track of the total number of files.
break; //No need to keep looping if we've got a match.
}
}

}
echo $count." image(s) found in this directory.\n";

closedir($dir);

?>

Now I have this, doesnt seem to look for subdirectories though, how do I make it do so?

[Xenon]

you have to write it recursively.

so wheneve the pointer shows to a directory instead of a file, then call the function using that subdirectory

[Owen]

Problem being, I have no idea how to do that.

[Owen]

Could someone please help me make this recursive?

[NTLDR]

Here is some pseudo code on how to do it:


function print_image_list($startdir)
{
// read directory contents
if (file is an image file)
{
// print it out or do what you want with the name
}
elseif (is directory other than . or ..)
{
print_image_list($this_directory);
}
}


Thats a basic 'shell' of how to do it.

[Owen]

I have seen code that lists things recursively, I am just not good enough at php to make an image counter with such a code.

[Owen]

Well I found a much better way of doing it.

So for anyone who is interested:


$path=$_SERVER['DOCUMENT_ROOT'].'/wallpapers/';
$number =`find '$path' -type f -regex '.*t_.*jpe?g$' | wc -l` /1;