Delete files then directory

问题

I have this so far:

<?php

$path = "files/";

$files = glob("" . $path . "{*.jpg, *.gif, *.png}", GLOB_BRACE);

$i = 0;

foreach($files as $file)
{
    $delete = unlink($file);

    if($delete)
    {
        echo $file . " deleted!<br />";
        $i - 1;
    }
    else
    {
        echo $file . " could not be deleted...<br />";
        $i + 1;
    }   
}

if($i == 0)
{   
    if(is_dir($path))
    {
        $remove = rmdir($path);

        if($remove)
        {
            echo "directory was deleted</br />";
        }
        else
        {
            echo "directory could not be deleted</br />";
        }
    }
    else
    {
        echo "not a valid directory<br />";
    }
}
else
{
    echo "there are some files in the folder";
    echo $i;
}

?>

It deletes every file, which is great. However, it doesn't remove the directory. What's wrong with this?

回答1:

You need to pull the rmdir out of the loop. Something like:

$numfailed = 0;

foreach($files as $file)
{
    $delete = unlink($file);

    if($delete)
    {
        echo $file . " deleted!<br />";
    }
    else
    {
        echo $file . " could not be deleted...<br />";
        $numfailed++;
    }   
}

if($numfailed == 0)
{   
    if(is_dir($path))
    {
        $remove = rmdir($path);

        if($remove)
        {
            echo "directory was deleted</br />";
        }
        else
        {
            echo "directory could not be deleted</br />";
        }
    }
    else
    {
        echo "not a valid directory<br />";
    }
}
else
{
    echo "there are still files in the folder, failed to remove $numfailed";
}

回答2:

You're trying to remove your directory in the foreach-loop which will delete the files inside that directory.

I'd try deleting all files first and then delete the directory, otherwise it won't be empty and can't be deleted.

Also you $i-counter won't do the job of telling you when the directory is empty: imagine your first file will be deleted, then $i = -1. If now your second file is not deleted, your $i = 0 ... which is the condition to delete the directory, even though it's not empty because at least your second file remains.

回答3:

rmdir removes a directory, but only if it is empty. You have to delete each file (and each subdirectory with their files) before a directory can be removed.

回答4:

Possibly permissions.

As you only deleting certain certain filetypes there may be other files left in the directory that you do not have permissions to delete, there for you cannot delete the folder.

Try checking if the folder is empty before trying to rmdir command on it.

来源：https://stackoverflow.com/questions/3450157/delete-files-then-directory