adicn/phpcms/modules/poster/uninstall/extention.inc.php

<?php 
defined('IN_PHPCMS') or exit('Access Denied');
defined('UNINSTALL') or exit('Access Denied');
$poster_stat = pc_base::load_model('poster_stat_model');
$diff1 = date('Y', SYS_TIME);		//当前年份
$diff2 = date('m', SYS_TIME);		//当前月份
$diff = ($diff1-2010)*12+$diff2;

for($y=$diff;$y>0;$y--) {
	$value = date('Ym', mktime(0, 0, 0, $y, 1, 2010));
	if($value<'201006' || !$this->db->table_exists($this->db_tablepre.'poster_'.$value)) break;
	$poster_stat->query("DROP TABLE IF EXISTS `".$this->db_tablepre."poster_".$value."`");
}
?>