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PHP分页函数代码(简单实用型)

  • 时间:2020-02-07 09:25 编辑: 来源: 阅读:
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摘要:PHP分页函数代码(简单实用型)
准备数据: 新建一个数据库 test 执行下面的语句(新建一个表 test :id、sex、name 三个字段) CREATE TABLE `test` ( `id` INT( 4 ) NOT NULL AUTO_INCREMENT PRIMARY KEY , `sex` INT( 1 ) NOT NULL , `name` VARCHAR( 20 ) NOT NULL ) ENGINE = MYISAM CHARACTER SET utf8 COLLATE utf8_bin; 添加数据到 test 表,比如: 1 1 小强 2 0 小红 3 0 小丽 4 1 小兵 5 1 张三 6 0 李四 7 0 吴欣 [img]http://img.1sucai.cn/uploads/article/2018010709/20180107090139_0_27161.png[/img] 写PHP语句(index.php):
[url=?page=1]$pagenav .= "<a href='?page=$pre_page'>前一页</a> "; $pagenav .= "<a href='?page=$next_page'>后一页</a> "; $pagenav .= "<a href='?page=$page_count'>末页</a>"; $pagenav.=" 跳到<select name='topage' size='1' onchange='window.location="?page="+this.value'>n"; for($i=1;$i<=$page_count;$i++){ if($i==$page) $pagenav.="<option value='$i' selected>$i</option>n"; else $pagenav.="<option value='$i'>$i</option>n"; } } // Page分页函数 // 使用示例 if (!$conn= mysql_connect("localhost", "root" ,"root")) die('数据库选择失败!'); if (!mysql_select_db("test", $conn)) die('数据库选择失败!'); mysql_query('set names GBK'); // 用Page函数计算出 $select_from 从哪条记录开始检索、$pagenav 输出分页导航 $rows = mysql_num_rows(mysql_query("select * from test")); Page($rows,2); $sql = "select * from test limit $select_from $select_limit"; $rst = mysql_query($sql); while ($row = mysql_fetch_array($rst)){ echo "$row[id] - $row[sex] - $row[name] <hr />"; } echo $pagenav; ?>
浏览 index.php 页面,如图: [img]http://img.1sucai.cn/uploads/article/2018010709/20180107090139_1_2155.png[/img] 该说byebye了,确实好用! [b]PHP简单分页函数 [/b]写了一个php简单的分页函数,数据库调用也写到里面了 ,用的人可以自行删减!
function getask(){ $sql = "select * from cms_ask where ansower <> ' ' "; //这里要改成方法 $q_sq = mysql_query($sql); $count = mysql_num_rows($q_sq); $page_size = 8; $page_current = isset($GLOBALS['page']) ? intval($GLOBALS['page']) : 1; $page_count = ceil($count / $page_size); $page_start = $page_current - 4; $page_end = $page_current + 4; if ($page_current < 5) { $page_start = 1; $page_end = 5; } if ($page_current > $page_count - 4) { $page_start = $page_count - 8; $page_end = $page_count; } if ($page_start < 1) $page_start = 1; if ($page_end > $page_count) $page_end = $page_count; $pagebar = ""; $sql = "select * from cms_ask where ansower <> ' ' order by id desc limit " . (($page_current - 1) * $page_size) . "," . $page_size; $row=$this -> user -> getall("$sql"); foreach($row as $v){ echo '<dl><dt>问:'.$v["question"].'</dt><dd>答:'.$v["ansower"].date("Y-m-d H:i:s",$v["postTime"]).'</dd></dl>'; } $pagebar .= "<div class="page">"; $pagebar .= "<ol>"; if ($page_current != 1) { $pagebar .= '<li><a href="javascript:get_comment(1)" class="sx">FIRST</a></li>'; } for ($i = $page_start; $i <= $page_end; $i++) { if ($i == $page_current) { $pagebar .= "<li><span class="sort">" . $i . "</span></li>"; } else { $pagebar .= "<li><a href='javascript:get_comment(" . $i . ")'>" . $i . "</a></li>"; } } if ($page_current != $page_count) { $pagebar .= "<li><a href='javascript:get_comment(" . $page_count . ")' class='sx'>END</a></li>"; } $pagebar .= "</ol>"; $pagebar .= " </div>"; echo $pagebar; }
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