php页码怎么实现

php页码怎么实现？

PHP页码显示的实现

效果：

拿去后几乎直接用。pageNow #当前页，pageNumb #总共页码数 两个变量赋值方式改一下就行了。

<?php#########################################################################页码显示PHP脚本#ora#2019-04-22 19:49:57 ##########################################################################$pageNumb = $arrlen /$contentNumbOnePage ;  #总共页码数=内容数/每页内容数。$pageNumb = 7; if (is_float($pageNumb)) { #总共页码数 取整。$pageNumb = (int)$pageNumb + 1;}elseif (is_integer($pageNumb)) {$pageNumb = $pageNumb;}else $pageNumb = 1; #出错，但重新定义总页码数为1,而不是退出。#$pageNow  #当前页#$_GET['page']  #url传递（请求）的页码。if (!empty($_GET['page']) && is_integer($_GET['page']/1) ) { #is_integer($_GET['page']/1) ,除1以后才是整数... 此处有问题。待修正。$pageNow = $page = $_GET['page'] ;}else {$pageNow = $page = 1;} #没有请求页码，给予初始化为1.#页码显示#规则:必有首尾页，当前页前后页码相同且给定。其他页码用...表示。/*四种情况。难得解释清楚，感兴趣自己用一串数字掩饰一下。比如：   1 23 ...777 ; 1 2 34...777 ;12 3 45...777 ; 1...23 4 56...777;1...234_235 <236> 237_238 ...777;    1 23 ...7 ; 1 2 34...7 ; 12 3 45...7 ;123 4 567;   1 23 ...5 ; 1 2 345; 12 3 45;   1 ... 234_235 <236> 237 ; 1 ... 235 236 <237> ;    1 2 <3> 4 ;*/#ye ma xian shi.$jiange=2;#ye ma jian ge.if (!is_integer($jiange) && $jiange<1){$jiange=2;}# jian ge bu xiao yu 1,qie wei zhengshu.##########################################下面4个case是方法#############################case 1if ($pageNow - $jiange - 1 - 1 > 0 && $pageNumb -$jiange -1 -1 >$pageNow){ # 前面有首页1、$jiange定义的间隔页码、和它本身。echo " <a href=\"?page=1\" >1</a> " ;echo "<span class=\"extend\">...</span> ";for ($num = $pageNow - $jiange ;$num<$pageNow;$num++){echo "<a href=\"?page=$num\">$num</a> ";}echo "<span class=\"current\">$pageNow</span>"; #当前页for ($num = $pageNow + 1 ; $num<=$pageNow + $jiange ;$num++){echo "<a href=\"?page=$num\">$num</a> ";}$num = $pageNow + 1;echo "<span class=\"extend\">...</span> ";echo "<a href=\"?page=$pageNumb\"> $pageNumb</a>"; }#case 2if ($pageNow - $jiange - 1 - 1 <= 0 && $pageNumb -$jiange -1 -1 >$pageNow){ # 到首页的间隔页少于等于定义间隔值。前面的页码全输出。后连续输出间隔页码。for($i=1;$i<=$pageNow + $jiange ;$i++){if($i==$pageNow){echo "<span class=\"current\">$pageNow</span>"; #当前页}else {echo "<a href=\"?page=$i\"><a style="color:transparent">来源gao*daima.com搞@代#码网</a> $i</a>"; }}echo "<span class=\"extend\">...</span> ";echo "<a href=\"?page=$pageNumb\"> $pageNumb</a>"; }#case 3if ($pageNow - $jiange - 1 - 1 > 0 && $pageNumb -$jiange -1 -1 <=$pageNow){echo " <a href=\"?page=1\" >1</a> " ;echo "<span class=\"extend\">...</span> ";for ($num = $pageNow - $jiange ;$num<$pageNow;$num++){echo "<a href=\"?page=$num\">$num</a> ";}echo "<span class=\"current\">$pageNow</span>"; #当前页for ($num = $pageNow + 1 ; $num<=$pageNumb;$num++){echo "<a href=\"?page=$num\">$num</a> ";}}#case 4 if ($pageNow - $jiange - 1 - 1 <= 0 && $pageNumb -$jiange -1 -1 <=$pageNow){ # for($i=1;$i<=$pageNumb ;$i++){if($i==$pageNow){echo "<span class=\"current\">$pageNow</span>"; #当前页}else {echo "<a href=\"?page=$i\"> $i</a>"; }}#echo "<span class=\"extend\">...</span> ";#echo "<a href=\"?page=$pageNumb\"> $pageNumb</a>"; }

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