glob() help

[jollyollie]

I'm trying to use glob() to search through a series of subdirectories to return an array of filenames that match a certain criteria. It's a real estate site and I want to find all pictures matching a certain listing number. Unfortunately, the way the files get stored, they are in a long series of subdirectories. The file would have a name like 123456_001.jpg.

Is glob() the right command? and how do I configure it for searching outside the main directory?

I've been reading about this and working on it all day, I'm hoping I didn't miss the obvious answer somewhere.

Thanks

[Drakla]

If you want to recurse directories then write a recursive function. At the start of the function store the current working directory, move into the one supplied, glob for files you want and directories and if there are any subdirectories then call the function again with that directory as a parameter.

return what you find, add it all up (I'll leave that to you) change back to the directory you started in then return your list.

You could also do it iteratively, but give that a whirl.

[planetsim]

The [man]glob[/man] function doesnt go into sub directories basically it reads either the current working directory

glob("*");

or the specified directory

glob("/path/to/*");

it wont read the directory if there are sub directories, now this doesnt mean its not possible it just requires more work (if you want to search I have an example using [man]opendir[/man] in a thread not that long ago which may work for you). Basically the glob function will need to be within a function which is to be recursive.

Here is a basic structure which isnt tested and probably wont work

function glob_recur($path, $match)
{
    foreach (glob("*") as $filename) //need to find directory
    {
        if (is_dir($filename))
            glob_recur($filename, $match);
        else if (preg_match($match, $filename))
            $array[] = $filename;
    }

return $array;
}

Just an example now of course it doesnt match what you requrie but finds directories you could probably call the glob function twice in the function and set the first to find the directories only and the other to actually do the match within that directory.

[jollyollie]

Ok, I followed the suggestion to use opendir().

I now have a new problem. I can get the code to work in a subdirectory, but not the main directory. The files I am searching are in subfolders in the images folder. When I use the code in the images folder (setting

$dir="."

) it works fine. Using it in the main folder I get te following error:

Warning: readdir(): 2 is not a valid Directory resource in /xxx/xxx/public_html/xxx/xxx.php on line 7

I'm sure it's a simple issue, but it's got me stumped. Here is the code:

<?
$dir = "images/";
if (is_dir($dir)) {
   if ($dh = opendir($dir)) {
       while (($file = readdir($dh)) !== false) {
if (is_dir($file)){
           echo "filename: $file : filetype: " . filetype($file) . "<br>";
 if ($dh2 = opendir($file)) { echo "opened $file <br>";
$matches = glob("$file/$mlsid*.*");
if ( is_array ( $matches ) ) {$num=0;
   foreach ( $matches as $filename) {
    echo "$filename size " . filesize($filename) . "<br>";
$name = $filename;
$files [$num] = $name;
$num=$num+1;
   }
}

}
       }
       closedir($dh);
   }
}
} else {echo "no such directory<br>";}
echo "<img src='$files[0]' width='350' height='275'>";

?>