更简单、更安全的查询方法

//另一种更安全的方法，且解决了查询，分页的问题，以后都应该用这种方法来做

publicfunction manage($n) {

$tab = M($n);

$Bigtitle = I(‘Bigtitle‘);

$Publishtime = I(‘Publishtime‘);

$page = isset($_POST[‘page‘]) ?intval($_POST[‘page‘]) : 1;

$rows = isset($_POST[‘rows‘]) ?intval($_POST[‘rows‘]) : 10;

$offset = ($page - 1) * $rows;

$sql[‘Lixiao‘] = ‘否‘;

$sql[‘SchoolID‘] ="$_SESSION[SchoolID]";

if ($Bigtitle != ‘‘) {

$sql[‘Bigtitle‘] ="$Bigtitle";

}

if ($Publishtime != ‘‘) {

$sql[‘Publishtime‘] ="$Publishtime";

}

$sql[‘_logic‘] = ‘AND‘;

$total =$tab->where($sql)->count();

$rs =$tab->where($sql)->limit($offset, $rows)->select();

if (!isset($rs)) {

$json->total = 0;

$json->rows = array();

} else {

$json->total = $total;

$json->rows = $rs;

}

$this->ajaxReturn($json);

}