function.file_list.php

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<?php
 
// include secure.php to protect this file and the whole CMS!
if(!defined("SEC_FILE")){define("SEC_FILE",'/framework/secure.php' );}
if (defined('LEPTON_PATH')) {   
    include LEPTON_PATH.SEC_FILE;
} else {
    $oneback = "../";
    $root = $oneback;
    $level = 1;
    while (($level < 10) && (!file_exists($root.SEC_FILE))) {
        $root .= $oneback;
        $level += 1;
    }
    if (file_exists($root.SEC_FILE)) { 
        include $root.SEC_FILE;  
    } else {
        trigger_error(sprintf("[ <b>%s</b> ] Can't include secure.php!", $_SERVER['SCRIPT_NAME']), E_USER_ERROR);
    }
}
// end include secure file
 
function file_list(
    string $directory,
    array $skip = [],
    bool $show_hidden = false,
    string $file_type = "",
    string $strip = "",
    bool $recursive = false
): array
{
    $result_list = [];
 
    if (is_dir($directory))
    {
        $use_skip = !empty($skip);
 
        $dir = dir($directory);
        while (false !== ($entry = $dir->read()))
        {
            // Skip hidden files
            if (($entry[0] == '.') && (false === $show_hidden))
            {
                continue;
            }
            // Check if we to skip anything else
            if ((true === $use_skip) && (in_array($entry, $skip)))
            {
                continue;
            }
 
            if (is_file($directory.'/'.$entry))
            {
                // Add file to list
                $temp_file = $directory.'/'.$entry;
                if ($strip != "")
                {
                    $temp_file = str_replace($strip, "", $temp_file);
                }
                
                if ($file_type === "")
                {
                    $result_list[] = $temp_file;
                } else {
                    if (preg_match('/\.'.$file_type.'$/i', $entry))
                    {
                        $result_list[] = $temp_file;
                    }
                }
            } 
            else 
            {
                if (true === $recursive)
                {
                    $aTemp = file_list($directory.'/'.$entry, $skip, $show_hidden, $file_type, $strip, $recursive);
                    if (!empty($aTemp))
                    {
                        $result_list = array_merge($result_list, $aTemp);
                    }
                }
            }
        }
        $dir->close();
    }
    natcasesort($result_list);
    return $result_list;
}