Something

<?php
  $node = array('type' => 'official_photo');
  $values['title'] = t('Sample official photo');
  $values['body'] = t('A sample official photo.');
  $values['name'] = 'adminn';
  $values['moderate'] = 0;
  $values['field_photo'][0] = array(
    'alt' => 'official-photo.png',
    'title' => 'official-photo.png',
    'filename' => 'official-photo.png',
    'filepath' => $_SERVER['DOCUMENT_ROOT'] .'/profiles/multisite/files/official-photo.png',
    'filemime' => 'image/png',
    'filesize' => 6231,
    'fid' => 'upload',
  );
  drupal_execute('official_photo_node_form', $values, $node);
?>