clib.php

在实际教学应用中

<?php 
/*
//构造查询条件
class Make_condition
{
    function Make_condition($name)
    {
        // 在全局数组 $globalref 中建立一个引用
        global $globalref;
        $globalref[] = &$this;
        // 将名字设定为传递的值
        $this->setName($name);
        // 并输出之
        $this->echoName();
    }

    function Make_like()
    {
        echo "<br>",$this->name;
    }

    function setName($name)
    {
        $this->name = $name;
    }
} */

//翻页类
class Page{
    var $totalpage;
    var $stride;
    var $currentpage;

    //设置总页数
    function setTotalpage($objpage=0){
        $this->totalpage=$objpage;
    }
    //设置当前页
    function setCurrentpage($objpage=1){
        $this->currentpage=$objpage;
    }
    //设置跨度
    function setStride($objStride=1){
        $this->stride=$objStride;
    }
    //获得总页数
    function getTotalpage(){
        return $this->totalpage;
    }
    //获得跨读
    function getStride($objStride=1){
        return $this->stride;
    }
    //获取当前页
    function getCurrentpage($objpage=1){
        return $this->currentpage;
    }
    //打印分页
    function Pageprint($q_url){
        $willprint="";
		for($Tmpa=0;$Tmpa<$this->totalpage;$Tmpa++){
            if($Tmpa+$this->stride<$this->currentpage){//加了跨度还小于当前页的不显示
                continue;
            }
            if($Tmpa+$this->stride==$this->currentpage){//刚好够跨度的页数
                $p=$this->currentpage-$this->stride-1;
                $willprint.="<a href=\"$_SERVER[PHP_SELF]?page=1&$q_url\"><strong><<</strong></a> <a href=\"$_SERVER[PHP_SELF]?page=$p&$q_url\"><strong><</strong></a> ";
            }
            if($Tmpa>$this->currentpage+$this->stride){//大于当前页+跨度的页面
                break;
            }
            $willprint.="<a href=\"$_SERVER[PHP_SELF]?page=$Tmpa&$q_url\"><strong>第{$Tmpa}页</strong></a> ";

            if($Tmpa==$this->currentpage+$this->stride){//刚好够跨度的页数
                $p=$this->currentpage+$this->stride+1;
                $willprint.="<a href=\"$_SERVER[PHP_SELF]?page=$p&$q_url\"><strong>></strong></a> <a href=\"$_SERVER[PHP_SELF]?page=$this->totalpage&$q_url\"><strong>>></strong></a>";
            }
        }
        echo $willprint;
    }//end of Pageprint
}//end of class of page
?>