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HomeBackend DevelopmentPHP TutorialPHP implements customizable style paging class_php skills

The example in this article shares with you the paging class that implements customizable styles in PHP for your reference. The specific content is as follows

<&#63;php
 
//namespace Component;
/**
 * 2016-3-27
 * @author ankang
 */
class Page {
 private $ShowPage;
 private $CountPage;
 private $Floorp;
 private $PageUrl;
 private $PageClass;
 private $CurClass;
 
 /**
 * @author ankang
 * @param number $CountNum  数据总数
 * @param string $PageUrl  跳转链接
 * @param string $PageClass  <a>标签 总体样式 
 * @param string $PageUrl  当前页样式
 * @param number $PageSize  每页显示的数据条数
 * @param number $ShowPage  每次显示的页数 
 */
 public function __construct($CountNum, $PageUrl = NULL, $PageClass = NULL,$CurClass = NULL, $PageSize = 20, $ShowPage = 5) {
 $this->ShowPage = $ShowPage;
 $this->CountPage  = ceil ( $CountNum / $PageSize );
 $this->Floorp  = floor ( $ShowPage / 2 ); // 偏移量 
 $this->PageClass  = is_null ( $PageClass ) &#63; '' : $PageClass;
 $this->CurClass = is_null ( $CurClass ) &#63; '' : $CurClass;
  
 // $ServerURL  = ( preg_match('/\&#63;/i', $_SERVER['REQUEST_URI']))&#63;preg_replace('/\&p\=[0-9]+/i', "", $_SERVER['REQUEST_URI']) : $_SERVER['REQUEST_URI']."&#63;";
 // if( substr($ButURL,0,2)=='//' ){
  // $ServerURL  = substr($ServerURL,1);
 // }
 // $url   = preg_replace('/p=[\d]*/i', '', $ServerURL);
  $url   = '';
 //推荐自己传url,不传也可以打开上面的代码自动获取
 $this->PageUrl  = is_null ( $PageUrl ) &#63; $url : $PageUrl;
 }
 
 /**
 *
 * @param number $Page  
 * @param string $ShowToPage
 *  首页,上下页,尾页
 * @param string $Html 标签元素,li,p 
 * @return string
 */
 public function getPage($Page = 1, $ShowToPage = true, $Html = null) {
 $StartPage  = ($Page - $this->Floorp); // 开始页码
 $EndPage  = ($Page + $this->Floorp); // 结束页码
  
 if ($this->CountPage < $this->ShowPage) {
  $StartPage = 1;
  $EndPage = $this->CountPage;
 }
  
 if ($StartPage < 1) {
  $StartPage = 1;
  $EndPage = $this->ShowPage;
 }
  
 if ($EndPage > $this->CountPage) {
  $StartPage = $this->CountPage - $this->ShowPage + 1;
  $EndPage = $this->CountPage;
 }
  
 $PageHtml = '';
  
 if (! is_null ( $Html )) {
  if ($Html == 'li') {
  $Shtml = '<li>';
  $Ehtml = '</li>';
  } else {
  $Shtml = '<p>';
  $Ehtml = '</p>';
  }
 }
  
 if (true == $ShowToPage) {
  $PageHtml  .= "$Shtml<a href='{$this->PageUrl}p=1'>&laquo; 首页</a>$Ehtml";
  $PrveUrl   = $this->getPrve($Page);
  $PageHtml  .= "$Shtml<a href='{$PrveUrl}'>&laquo; 上一页</a>$Ehtml";
 }
  
 for($i = $StartPage; $i <= $EndPage; $i ++) {
  if ($Page == $i) {
  $PageHtml  .= "$Shtml<a href='{$this->PageUrl}p={$i}' class='{$this->CurClass}'>{$i}</a>$Ehtml";
  } else {
  $PageHtml  .= "$Shtml<a href='{$this->PageUrl}p={$i}' class='{$this->PageClass}'>{$i}</a>$Ehtml";
  }
 }
  
 if (true == $ShowToPage) {
  $NextUrl   = $this->getNext($Page);
  $PageHtml  .= "$Shtml<a href='{$NextUrl}'>下一页 &raquo;</a>$Ehtml";
  $PageHtml  .= "$Shtml<a href='{$this->PageUrl}p={$this->CountPage}' >尾页 &raquo;</a>$Ehtml";
 }
  
 return $PageHtml;
 }
 
 public function getPrve($Page){
 if ($Page != 1) {
  $Prve  = $Page - 1;
  $PrveUrl  = "{$this->PageUrl}p={$Prve}";
 } else {
  $PrveUrl  = "{$this->PageUrl}p=1";
 }
  
 return $PrveUrl;
 }
 
 public function getNext($Page){
 if ($Page != $this->CountPage) {
  $Next  = $Page + 1;
  $NextUrl  = "{$this->PageUrl}p={$Next}";
 } else {
  $NextUrl  = "{$this->PageUrl}p={$this->CountPage}";
 }
  
 return $NextUrl;
 }
 
 
 
}

Let me share with you another one that is mainly used for novices to learn PHP paging. The code is simple and practical, and the comments are complete.

1. Page.class.php

<&#63;php
/**
 * 分页类
 * 
 * 调用方式:
 * $p=new Page(总页数,显示页数,当前页码,每页显示条数,[链接]);
 * print_r($p->getPages()); //生成一个页码数组(键为页码,值为链接)
 * echo $p->showPages(1); //生成一个页码样式(可添加自定义样式)
 * 
 * @author: Dzer <Email:358654744@qq.com Blog:Dzer.me>
 * @version: 2014-12-25 09:09:42
 * @Last Modified time: 2014-12-28 17:37:13
 */
 
/*
思路:
给我一个 总页数,需要显示的页数,当前页,每页显示的条数,连接
写一个方法 生成一个一维数组,键为页码 值为连接
写一个方法 返回一个生成好样式的页码(并且可以根据自己需要添加样式)
默认样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页]
*/
class Page{
 protected $count;  //总条数
 protected $showPages; //需要显示的页数
 protected $countPages; //总页数
 protected $currPage; //当前页
 protected $subPages; //每页显示条数
 protected $href;  //连接
 protected $page_arr=array(); //保存生成的页码 键页码 值为连接
 
 /**
  * __construct 构造函数(获取分页所需参数)
  * @param int $count  总条数
  * @param int $showPages 显示页数
  * @param int $currPage 当前页数
  * @param int $subPages 每页显示数量
  * @param string $href 连接(不设置则获取当前URL)
  */
 public function __construct($count,$showPages,$currPage,$subPages,$href=''){
  $this->count=$count;
  $this->showPages=$showPages;
  $this->currPage=$currPage;
  $this->subPages=$subPages;
   
  //如果链接没有设置则获取当前连接
  if(empty($href)){
   $this->href=htmlentities($_SERVER['PHP_SELF']); 
  }else{
   $this->href=$href;
  }
  $this->construct_Pages();
 }
 
 /**
  * getPages 返回页码数组
  * @return array 一维数组 键为页码 值为链接
  */
 public function getPages(){
  return $this->page_arr;
 }
 
 /**
  * showPages 返回生成好的页码
  * @param int $style 样式
  * @return string  生成好的页码
  */
 public function showPages($style=1){
  $func='pageStyle'.$style;
  return $this->$func();
 }
 
 /**
  * pageStyle1 分页样式(可参照这个添加自定义样式 例如pageStyle2())
  * 样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页] 
  * @return string 
  */
 protected function pageStyle1(){
  /* 构造普通模式的分页 
  共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [1] [2] [3] .. [下页] [尾页] 
  */
  $pageStr='共'.$this->count.'条记录,每页显示'.$this->subPages.'条';
  $pageStr.='当前第'.$this->currPage.'/'.$this->countPages.'页 ';
 
  $_GET['page'] = 1;
  $pageStr.='<span>[<a href="'.$this->href.'&#63;'.http_build_query($_GET).'">首页</a>] </span>';
  //如果当前页不是第一页就显示上页
  if($this->currPage>1){
   $_GET['page'] = $this->currPage-1;
   $pageStr.='<span>[<a href="'.$this->href.'&#63;'.http_build_query($_GET).'">上页</a>] </span>';
  }
 
  foreach ($this->page_arr as $k => $v) {
   $_GET['page'] = $k;
   $pageStr.='<span>[<a href="'.$v.'">'.$k.'</a>] </span>';
  }
 
  //如果当前页小于总页数就显示下一页
  if($this->currPage<$this->countPages){
   $_GET['page'] = $this->currPage+1;
   $pageStr.='<span>[<a href="'.$this->href.'&#63;'.http_build_query($_GET).'">下页</a>] </span>';
  }
 
  $_GET['page'] = $this->countPages;
  $pageStr.='<span>[<a href="'.$this->href.'&#63;'.http_build_query($_GET).'">尾页</a>] </span>';
 
  return $pageStr;
 }
 
 /**
  * construct_Pages 生成页码数组
  * 键为页码,值为链接
  * $this->page_arr=Array(
  *     [1] => index.php&#63;page=1
  *     [2] => index.php&#63;page=2
  *     [3] => index.php&#63;page=3
  *     ......)
  */
 protected function construct_Pages(){
  //计算总页数
  $this->countPages=ceil($this->count/$this->subPages);
  //根据当前页计算前后页数
  $leftPage_num=floor($this->showPages/2);
  $rightPage_num=$this->showPages-$leftPage_num;
 
  //左边显示数为当前页减左边该显示的数 例如总显示7页 当前页是5 左边最小为5-3 右边为5+3
  $left=$this->currPage-$leftPage_num;
  $left=max($left,1); //左边最小不能小于1
  $right=$left+$this->showPages-1; //左边加显示页数减1就是右边显示数
  $right=min($right,$this->countPages); //右边最大不能大于总页数
  $left=max($right-$this->showPages+1,1); //确定右边再计算左边,必须二次计算
   
  for ($i=$left; $i <= $right; $i++) {
   $_GET['page'] = $i;
   $this->page_arr[$i]=$this->href.'&#63;'.http_build_query($_GET);
  }
 }
}

2. demo.php

<&#63;php
/**
 * 分页类demo
 * Be the best of whatever you are!
 * 
 * @author: Dzer<358654744@qq.com>
 * @version: 2014-12-28 17:38:23
 * @Last Modified time: 2014-12-28 18:08:28
 */
header("content-type:text/html;charset=utf8");
include('./Page.class.php'); //引入类
 
//$p=new Page(总页数,显示页数,当前页码,每页显示条数,[链接]);
//连接不设置则为当前链接
$page=isset($_GET['page']) &#63; $_GET['page'] : 1;
$p=new Page(100,7,$page,8);
 
//生成一个页码数组(键为页码,值为链接)
echo "<pre class="brush:php;toolbar:false">";
print_r($p->getPages()); 
 
//生成一个页码样式(可添加自定义样式)
//样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页]
echo $p->showPages(1); 

The above is the entire content of this article. I hope it will be helpful to everyone in learning PHP programming.

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