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ThinkPHP使用心得分享-分页类Page的用法_PHP

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Release: 2016-06-01 11:53:30
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ThinkPHP

ThinkPHP中的Page类在ThinkPHP/Extend/Library/ORG/Util/Page.class.php中,所以使用前要引入Page类:

复制代码 代码如下:
import('ORG.Util.Page'); //Page类的引入
$db = M('abc');//实例化数据表abc
$where = array(
'id'=>'2';
);//条件语句$where,例表中字段id的值为2
$count = $db->where($where)->count();//获取符合条件的数据总数count
$page = new Page($count, 10);//实例化page类,传入数据总数和每页显示10条内容
$limit = $page->firstRow . ',' . $page->listRows;//每页的数据数和内容$limit
$result =$db->where($where))->limit($limit)->select();//分页查询结果
$this->result = $result;//赋值
$this->show = $page->show();//获取分页的底部信息

以上代码是分页类实现的基本语句,当然喜欢使用原生sql语句的朋友也可以配合原生sql语句实现查询分页:

复制代码 代码如下:
        import('ORG.Util.Page'); //Page类的引入
        $db = M('abc');//实例化数据表abc
        $where = array(
           'id'=>'2';
        );//条件语句$where,例表中字段id的值为2
        $count = $db->where($where)->count();//获取符合条件的数据总数count
        $page = new Page($count, 10);//实例化page类,传入数据总数和每页显示10条内容
        $Modle = new Model();//实例化新数据模型
        $sql = 'select id,name from abc where '.$where.' limit '.$page->firstRow.','.$page->listRows;//sql语句
        $result = $Modle->query($sql);//执行sql语句
        $this->result = $result
        $this->show=$page->show();

当然,分布查询获取的内容也可以先对查询完的数据进行处理再赋值,比如

复制代码 代码如下:
     ...

    $result =$db->where($where))->limit($limit)->select();//分页查询结果
    $res = abc($result);//abc方法(自定义方法或php函数)对结果$result进行数据排序或重组处理等
    $this->result = $res;//赋值

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