How to increase the number of items displayed on each page in thinkphp

I need to add one more display number per page similar to phpmyadmin. I searched for a long time but couldn’t find it.

I saw that thinkphp paging class is spliced with html, which is very low but convenient. I modified the new requirement

and defined a new num variable based on the native paging class

When the show method returns, a new section of code for selecting the number of items is added where thinkphp splices HTML

return "
{$page_str}
 
 显示条数  
 
urlNum(10,1)."'>10
 
urlNum(30,1)."'>30
 
urlNum(50,1)."'>50
 
 
";

Then the newly added urlNum method is as follows:

private function urlNum($num,$page){ $str = str_replace(urlencode('[PAGE]'), $page, $this->url); return str_replace(urlencode('[NUM]'), $num, $str); }

At the beginning, because the page variable thinkphp will first change the transcoding and then replace

and page=1 Sometimes it is not displayed in the url, but there is still this parameter

, which causes the num variable to always make the url very unstable and often superimposed.

Only a small sacrifice is made later (selecting each page When displaying the number of items, even if the url page is 1, it will be added)

But this has no effect

The entire code paging class is like this:

  // +---------------------------------------------------------------------- namespace Think; class Page{ public $firstRow; // 起始行数 public $listRows; // 列表每页显示行数 public $parameter; // 分页跳转时要带的参数 public $totalRows; // 总行数 public $totalPages; // 分页总页面数 public $rollPage = 11;// 分页栏每页显示的页数 public $lastSuffix = true; // 最后一页是否显示总页数 private $p = 'p'; //分页参数名 private $num = 'num'; //分页参数名 private $url = ''; //当前链接URL private $nowPage = 1; // 分页显示定制 private $config = array( 'header' => '共 %TOTAL_ROW% 条记录', 'prev' => '«', 'next' => '»', 'first' => '1...', 'last' => '...%TOTAL_PAGE%', 'theme' => '%HEADER% %FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%', ); /** * 架构函数 * @param array $totalRows 总的记录数 * @param array $listRows 每页显示记录数 * @param array $parameter 分页跳转的参数 */ public function __construct($totalRows, $listRows=20, $parameter = array()) { C('VAR_PAGE') && $this->p = C('VAR_PAGE'); //设置分页参数名称 /* 基础设置 */ $this->totalRows = $totalRows; //设置总记录数 $this->listRows = $listRows; //设置每页显示行数 $this->parameter = empty($parameter) ? $_GET : $parameter; $this->nowPage = empty($_GET[$this->p]) ? 1 : intval($_GET[$this->p]); $this->nowPage = $this->nowPage>0 ? $this->nowPage : 1; $this->firstRow = $this->listRows * ($this->nowPage - 1); } /** * 定制分页链接设置 * @param string $name 设置名称 * @param string $value 设置值 */ public function setConfig($name,$value) { if(isset($this->config[$name])) { $this->config[$name] = $value; } } /** * 生成链接URL * @param integer $page 页码 * @return string */ private function url($page){ // return str_replace(urlencode('[PAGE]'), $page, $this->url); $num = $_GET['num'] ? $_GET['num'] : '10'; $str = str_replace(urlencode('[NUM]'), $num, $this->url); return str_replace(urlencode('[PAGE]'), $page, $str); } private function urlNum($num,$page){ $str = str_replace(urlencode('[PAGE]'), $page, $this->url); return str_replace(urlencode('[NUM]'), $num, $str); } /** * 组装分页链接 * @return string */ public function show() { if(0 == $this->totalRows) return ''; /* 生成URL */ // echo $this->num;die; $this->parameter[$this->p] = '[PAGE]'; // $num = empty($_GET['num']) ? '20' : ''; $this->parameter[$this->num] = '[NUM]'; $this->url = U(ACTION_NAME, $this->parameter); /* 计算分页信息 */ $this->totalPages = ceil($this->totalRows / $this->listRows); //总页数 if(!empty($this->totalPages) && $this->nowPage > $this->totalPages) { $this->nowPage = $this->totalPages; } /* 计算分页临时变量 */ $now_cool_page = $this->rollPage/2; $now_cool_page_ceil = ceil($now_cool_page); $this->lastSuffix && $this->config['last'] = $this->totalPages; //上一页 $up_row = $this->nowPage - 1; $up_page = $up_row > 0 ? '
' . $this->config['prev'] . '
' : ''; //下一页 $down_row = $this->nowPage + 1; $down_page = ($down_row <= $this->totalPages) ? '
' . $this->config['next'] . '
' : ''; //第一页 $the_first = ''; if($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1){ $the_first = '
' . $this->config['first'] . '
'; } //最后一页 $the_end = ''; if($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages){ $the_end = '
' . $this->config['last'] . '
'; } //数字连接 $link_page = ""; for($i = 1; $i <= $this->rollPage; $i++){ if(($this->nowPage - $now_cool_page) <= 0 ){ $page = $i; }elseif(($this->nowPage + $now_cool_page - 1) >= $this->totalPages){ $page = $this->totalPages - $this->rollPage + $i; }else{ $page = $this->nowPage - $now_cool_page_ceil + $i; } if($page > 0 && $page != $this->nowPage){ if($page <= $this->totalPages){ $link_page .= '
' . $page . '
'; }else{ break; } }else{ if($page > 0 && $this->totalPages != 1){ $link_page .= '
' . $page . '
'; } } } //替换分页内容 $page_str = str_replace( array('%HEADER%', '%NOW_PAGE%', '%UP_PAGE%', '%DOWN_PAGE%', '%FIRST%', '%LINK_PAGE%', '%END%', '%TOTAL_ROW%', '%TOTAL_PAGE%'), array($this->config['header'], $this->nowPage, $up_page, $down_page, $the_first, $link_page, $the_end, $this->totalRows, $this->totalPages), $this->config['theme']); return "
{$page_str}
 
 显示条数  
 
urlNum(10,1)."'>10
 
urlNum(30,1)."'>30
 
urlNum(50,1)."'>50
 
 
"; } }

The effect is as follows:

Recommended tutorial: "TP5"

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