PHP自练项目之数字与文字的分页效果在函数中实现

/**
 *
 * @param $_sql
 * @param $_size
 */

function _page($_sql,$_size) {
    //将里面的所有变量取出来，外部可以访问
    global $_page,$_pagesize,$_pagenum,$_pageabsolute,$_num;
    if (isset($_GET['page'])) {
        $_page = $_GET['page'];
        if (empty($_page) || $_page < 0 || !is_numeric($_page)) {
            $_page = 1;
        } else {
            $_page = intval($_page);
        }
    } else {
        $_page = 1;
    }
    $_pagesize = $_size;
    $_num = _num_rows(_query($_sql));
    if ($_num == 0) {
        $_pageabsolute = 1;
    } else {
        $_pageabsolute = ceil($_num / $_pagesize);
    }
    if ($_page > $_pageabsolute) {
        $_page = $_pageabsolute;
    }
    $_pagenum = ($_page - 1) * $_pagesize;
}

/**
 * _paging分页函数
 * @param $_type
 * @return 返回分页
 */

function _paging($_type) {
    global $_page,$_pageabsolute,$_num;
    if ($_type == 1) {
        echo '<div id="page_num">';
        echo '<ul>';
                for ($i=0;$i<$_pageabsolute;$i++) {
                        if ($_page == ($i+1)) {
                            echo '<li><a href="blog.php?page='.($i+1).'" class="selected">'.($i+1).'</a></li>';
                        } else {
                            echo '<li><a href="blog.php?page='.($i+1).'">'.($i+1).'</a></li>';
                        }
                }
        echo '</ul>';
        echo '</div>';
    } elseif ($_type == 2) {
        echo '<div id="page_text">';
        echo '<ul>';
        echo '<li>'.$_page.'/'.$_pageabsolute.'页 | </li>';
        echo '<li>共有<strong>'.$_num.'</strong>个会员 | </li>';
                if ($_page == 1) {
                    echo '<li>首页 | </li>';
                    echo '<li>上一页 | </li>';
                } else {
                    echo '<li><a href="'.SCRIPT.'.php">首页</a> | </li>';
                    echo '<li><a href="'.SCRIPT.'.php?page='.($_page-1).'">上一页</a> | </li>';
                }
                if ($_page == $_pageabsolute) {
                    echo '<li>下一页 | </li>';
                    echo '<li>尾页</li>';
                } else {
                    echo '<li><a href="'.SCRIPT.'.php?page='.($_page+1).'">下一页</a> | </li>';
                    echo '<li><a href="'.SCRIPT.'.php?page='.$_pageabsolute.'">尾页</a></li>';
                }
        echo '</ul>';
        echo '</div>';
    }
}

在核心函数库包装以上代码glob.funic.php

然后只要在文件中调用以下函数就行：

<?php }
//_pageing函数调用分页，1|2，1表示数字分页，2表示文本分页
_paging(2);
?>