php - 用于搜索目录和仅限.jpg的glob

Question

What if I want to search for a only subdirectories AND certain file types. Ex. I have a folder named “stuff” where random stuff is uploaded. And say I want to search for just subfolders AND .jpg files within “stuff” and nothing more. I know to search for only .jpg is…

$array = glob('stuff/{*.jpg}', GLOB_BRACE);

and to search for only subdirectories is…

$array = glob('stuff/*', GLOB_ONLYDIR);

…but how do I combine the two without getting any other unwanted files? Is there a pattern for subirectories for GLOB_BRACE?

Answer 1

This recursive function should do the trick:

function recursiveGlob($dir, $ext) {
    $globFiles = glob("$dir/*.$ext");
    $globDirs  = glob("$dir/*", GLOB_ONLYDIR);

    foreach ($globDirs as $dir) {
        recursiveGlob($dir, $ext);
    }

    foreach ($globFiles as $file) {
        print "$file\n"; // Replace '\n' with '<br />' if outputting to browser
    }
}

Usage: recursiveGlob('C:\\Some\\Dir', 'jpg');

If you want it to do other things to the individual file, just replace the print "$file\\n" part.

The function can be more specific in its glob searches and only match directories as well as files with the specified file extension, but I made it this way for simplicity and transparency.

Answer 2

I'm not sure I am following exactly because with one you are looking for a specific file type, and with the other you are looking for subdirectories. Those are completely different patterns!

That being said, a way to have an array containing all *.jpg files in stuff/ and also subdirectories in stuff/ would be to take your code a step further:

$jpg_array = glob('stuff/{*.jpg}', GLOB_BRACE);
$subdir_array = glob('stuff/*', GLOB_ONLYDIR);

// Combine arrays
$items = array_merge($jpg_array,$subdir_array);

// Do something with values
foreach($items as $item)
{ 
   echo($item . "<br>");
}