<?php

/**
 * @author: unknown
 */

/**
 * Simulates a "wget url" and do not buffer data in the memory in order
 * to avoid thouse problems on large files.
 *
 * @param string $file_source
 * @param string $file_target
 * @return bool
 */
function download($file_source, $file_target)
{
    $rh = fopen($file_source, 'rb');
    $wh = fopen($file_target, 'wb');

    // error reading or opening file
    if ($rh===false || $wh===false) return false;

    while (! feof($rh) )
    {
        // 'Download error: Cannot write to file ('.$file_target.')';
        if (fwrite($wh, fread($rh, 1024)) === FALSE) return false;
    }

    fclose($rh);
    fclose($wh);

    // No error
    return true;
}