find-ob.php

<?php
function doFind($dir) {
    $dh = opendir($dir);
    if (!$dh) die("Could not open $dir\n");

    while (false !== ($f = readdir($dh))) {
        if ($f === '.' || $f === '..') continue;
        $path = $dir . '/' . $f;
        echo $path . "\n";

        if (is_dir($path) && !is_link($path)) {
            doFind($path);
        }
    }

    closedir($dh);
}

ob_start();
doFind($argv[1]);
ob_end_flush();