Lets say you want to copy php.ini to all the domain directors in hostgator (but NOT the subfolders). Here's something that you can do. Just create a file called php_modifed.php and do your settings there. And copy that file and this file to the base directory and run the PHP script.

<?php
   
    function dirTree($dir) {

    $file = "php_modified.php";

    $d = dir($dir);

    while (false !== ($entry = $d->read())) {
       if($entry != '.' && $entry != '..' && is_dir($dir.$entry))
       
        copy ($file, $entry . "/php.ini");
    }
    $d->close();
    return $arDir;
}

function printTree($array, $level=0) {
   foreach($array as $key => $value) {
       echo "<div class='dir' style='width: ".($level*20)."px;'> </div>".$key."<br/>\n";
       if(is_array($value))
           printTree($value, $level+1);
   }
}

$dir = "./";
dirTree($dir);

?>