Making a temporary dir for unpacking a zipfile into

Question

I have a script that checks a zipfile containing a number of matching PDF+textfiles. I want to unpack, or somehow read the textfiles from the zipfile, and just pick out some

Answer 1

The "mkdir" function raises a warning if the directory already exists, so you can catch this using "@mkdir" and avoid any race condition:

function tempDir($parent = null)
{
    // Prechecks
    if ($parent === null) {
        $parent = sys_get_temp_dir();
    }
    $parent = rtrim($parent, '/');
    if (!is_dir($parent) || !is_writeable($parent)) {
        throw new Exception(sprintf('Parent directory is not writable: %s', $parent));
    }

    // Create directory
    do  { 
        $directory = $parent . '/' . mt_rand();
        $success = @mkdir($directory);
    }
    while (!$success);

    return $directory; 
}