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<?php 
/* Set Blog Status to 'Spam' */
$input = '65863,65872,65875,65883,65884,65899';
$array = explode( ',', $input );
for ($i = 0; $i < count($array); ++$i) {
  update_blog_status( $array[$i], 'spam', '1' );
  update_blog_status( $array[$i], 'public', '0' );
  echo 'Blog ' . $array[$i] . ' status set to SPAM<br>';
}