Custom snippet to echo ditto

while ($row = mysql_fetch_array($resultmain )) {
  echo "[!Ditto? &parents=`134` &documents=" . $row['id'] . " &tpl=`usedtempchunk`!]";
}

<?php
$output ='';
while ($row = mysql_fetch_array($resultmain )) {
    $output .= $modx->runSnippet("Ditto", array(
        'parents'   => '134',
        'documents' => $row['id'],
        'tpl'       => 'usedtempchunk'));
}
return $output;
?>

$ids = array();
while ($row = mysql_fetch_array($resultmain )) {
    $ids[] = $row['id'];
}
return   $modx->runSnippet("Ditto", array(
        'documents' => implode(',',$ids),
        'tpl'       => 'usedtempchunk'));