文档建议反馈控制台
首页
学习
活动
专区
圈层
工具
MCP广场
文章/答案/技术大牛
发布
社区首页 >问答首页 >显示一半结果的XML分页

问显示一半结果的XML分页
EN

Stack Overflow用户
提问于 2018-05-12 03:47:19
回答 1查看 51关注 0票数 0

我正在尝试修改来自XML pagination with PHP的可接受的答案，以适应我的需要。我正在开发一个基于XML的图像库(个人偏好使用XML而不是MySQL，因为这是我的个人站点)。我的画廊运作良好，但我试图将记录限制在每页最多9张。我接受了上述问题的公认答案，并使其部分发挥作用。出于某种原因，它只显示了一半的结果。目前共有23个图像记录。为了测试目的，我已经设置了向2显示的数字。完成此操作后，将生成11页面链接。由于某种原因，每页只有一张图片。还注意到，由于目前每页应该有两个，那么总共应该有12个页面链接。有人能告诉我为什么当我将数字设置为2时，每页只显示一幅图像吗？如果我把它设置为每页显示九个，那么只有八个显示。

代码语言：javascript
复制
<?php
   include $_SERVER['DOCUMENT_ROOT'] . "/settings/config.php";
    ?>
<body>
   <?php
      include $_SERVER['DOCUMENT_ROOT'] . "/php/header.php";
      if(isset($_GET['page'])) { $startPage = $_GET['page']; } else { $startPage = 1; }
      $perPage = 2;
      $currentRecord = 0;
      $imagexml = new SimpleXMLElement($_SERVER['DOCUMENT_ROOT'].'/info/gallery.xml', 0, true);
       ?>
   <div class="container">
      <div class="row">
         <div class="message text-center w-100">
            <h1 class="txt-shadow"><span class="tattoo-icon">l</span> Photo Gallery <span class="tattoo-icon">;</span></h1>
         </div>
         <div class="card-deck">
            <?php
               foreach($imagexml->image as $image) {
                         $currentRecord += 1;
                        if($currentRecord > ($startPage * $perPage) && $currentRecord < ($startPage * $perPage + $perPage)){
                  echo '<div class="col-sm-12 col-md-4 mb-3 text-center">
                        <div class="card">
                      <a href="http://example.com/img/gallery/'.$image->src.'" data-toggle="lightbox" data-gallery="body_piercings">
                      <img src="http://example.com/img/gallery/'.$image->src.'" class="card-img-top img-fluid img-thumbnail bx-shadow" alt="Card image cap">
                      </a>
                      <div class="card-body">
                       <h5 class="card-title txt-shadow">'. $image->title .'</h5>
                       <p class="card-text txt-shadow">'.$image->desc.'</p>
                       <a href="'.$image->instagram.'" target="_blank" class="btn btn-instagram bx-shadow"><i class="fa fa-instagram"> </i> View On Instagram</a>
                      </div>
                      <div class="card-footer">
                     <small class="text-muted">Posted: '.$image->date.'</small>
                   </div>
                       </div>
                      </div>';
               }
               }

               ?>
         </div>
      </div>
      <nav>
         <ul class="pagination justify-content-center">
            <?php
               //and the pagination:
                       for ($i = 1; $i <= ($currentRecord / $perPage); $i++) {
                          echo("<li class='page-item'><a class='page-link'  href='?page=".$i."'>".$i."</a></li>");
                       } ?>
         </ul>
      </nav>
   </div>
   <div class="container-fluid">
      <?php
         include $_SERVER['DOCUMENT_ROOT'] . "/php/footer.php";
          ?>
   </div>
</body>
</html>

这是gallery.xml当前的结构

代码语言：javascript
复制
<?xml version="1.0" encoding="UTF-8"?>
<images>
 <image>
  <src>belly_button_1.jpg</src>
  <title>Belly Button</title>
  <desc>Belly button piercing using 14G curved barbell.</desc>
  <instagram>https://www.example.com/p/BbHba1BgmrC/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>christina_1.jpg</src>
  <title>Christina(Pubic)</title>
  <desc>Christina(pubic) piercing using 14G curved barbell.</desc>
  <instagram>https://www.example.com/p/BclajtRgkPk/</instagram>
  <date>December 11, 2017</date>
 </image>
 <image>
  <src>christina_2.jpg</src>
  <title>Christina(Pubic)</title>
  <desc>Christina(pubic) piercing using 14G curved barbell.</desc>
  <instagram>https://www.example.com/p/BdSlWkogshq/</instagram>
  <date>December 29, 2017</date>
 </image>
 <image>
  <src>eyebrow_1.jpg</src>
  <title>Eyebrow</title>
  <desc>Vertical eyebrow piercing using 16G curved barbell.</desc>
  <instagram>https://www.example.com/p/BbIBtHDAX2F/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>eyebrow_2.jpg</src>
  <title>Eyebrow</title>
  <desc>Vertical eyebrow piercing using 16G curved barbell.</desc>
  <instagram>https://www.example.com/p/Bfi9x_RAczq/</instagram>
  <date>February 23, 2018</date>
 </image>
 <image>
  <src>lobe_1.jpg</src>
  <title>Ear Lobe</title>
  <desc>Ear lobe piercing using 16G straight barbell.</desc>
  <instagram>https://www.example.com/p/BbHxZLtAnVA/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>lobes_1.jpg</src>
  <title>Ear Lobe(Pair)</title>
  <desc>Ear lobe piercings using 14G captive bead rings.</desc>
  <instagram>https://www.example.com/p/Bb4zQO1gsAO/</instagram>
  <date>November 24, 2017</date>
 </image>
 <image>
  <src>lobes_2.jpg</src>
  <title>Ear Lobe(Pair)</title>
  <desc>Ear lobe piercings using 14G captive bead rings.</desc>
  <instagram>https://www.example.com/p/BdSlqmXggSt/</instagram>
  <date>December 29, 2017</date>
 </image>
 <image>
  <src>monroe_1.jpg</src>
  <title>Monroe</title>
  <desc>Monroe piercing using 16G lip stud.</desc>
  <instagram>https://www.example.com/p/BbHxJwYA3lt/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>monroe_2.jpg</src>
  <title>Monroe</title>
  <desc>Monroe piercing using 16G internally threaded lip stud.</desc>
  <instagram>https://www.example.com/p/BifXeMYFjfO/</instagram>
  <date>May 7, 2018</date>
 </image>
 <image>
  <src>nipples_1.jpg</src>
  <title>Nipples(Female Pair)</title>
  <desc>Nipple piercings using 14G straight barbell.</desc>
  <instagram>https://www.example.com/p/Bcl7eSoAuaa/</instagram>
  <date>December 12, 2017</date>
 </image>
 <image>
  <src>nipples_2.jpg</src>
  <title>Nipples(Female Pair)</title>
  <desc>Nipple piercings using 14G straight barbell.</desc>
  <instagram>https://www.example.com/p/BdSlP5iATaj/</instagram>
  <date>December 29, 2017</date>
 </image>
 <image>
  <src>nostril_1.jpg</src>
  <title>Nostril</title>
  <desc>Nostril piercing using 20G nose stud.</desc>
  <instagram>https://www.example.com/p/BbHbK6gg8Ub/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>nostril_2.jpg</src>
  <title>Nostril</title>
  <desc>Nostril piercing using 18G nose stud.</desc>
  <instagram>https://www.example.com/p/BifWlv7FsMK/</instagram>
  <date>May 7, 2018</date>
 </image>
 <image>
  <src>septum_1.jpg</src>
  <title>Septum</title>
  <desc>Septum piercing using 16G horeshoe barbell.</desc>
  <instagram>https://www.example.com/p/Bb_QglhAYIA/</instagram>
  <date>November 27, 2018</date>
 </image>
 <image>
  <src>septum_2.jpg</src>
  <title>Septum</title>
  <desc>Septum piercing using 16G horeshoe barbell.</desc>
  <instagram>https://www.example.com/p/BcDzH46AG6W/</instagram>
  <date>November 28, 2018</date>
 </image>
 <image>
  <src>septum_snakebites_1.jpg</src>
  <title>Septum And Snakebites</title>
  <desc>Septum piercing using 16G horeshoe barbell along with snakebite piercings using 16G internally threaded lip studs.</desc>
  <instagram>https://www.example.com/p/BcI_PAuAYQ3/</instagram>
  <date>November 30, 2017</date>
 </image>
 <image>
  <src>snakebites_1.jpg</src>
  <title>Snakebites</title>
  <desc>Snakebite piercings using 14G horseshoe barbells.</desc>
  <instagram>https://www.example.com/p/BbK2X5pgXpv/</instagram>
  <date>November 6, 2017</date>
 </image>
 <image>
  <src>snakeeyes_1.jpg</src>
  <title>Snake Eyes</title>
  <desc>Snake Eyes piercing through tip of tongue using 14G internally threaded curved barbell.</desc>
  <instagram>https://www.example.com/p/BePKMu_AdHH/</instagram>
  <date>January 21, 2018</date>
 </image>
 <image>
  <src>throat_surface.jpg</src>
  <title>Throat Surface</title>
  <desc>Throst surface piercing using two 16G curved barbells.</desc>
  <instagram>https://www.example.com/p/BbHwp83Adq3/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>tongue_1.jpg</src>
  <title>Tongue</title>
  <desc>Tongue piercing using 14G straight barbell.</desc>
  <instagram>https://www.example.com/p/BbH21jKAovA/</instagram>
  <date>November 5, 2017</date>
 </image>
 <image>
  <src>tongue_2.jpg</src>
  <title>Tongue</title>
  <desc>Tongue piercing using 14G straight barbell.</desc>
  <instagram>https://www.example.com/p/Bb76eLBAVSf/</instagram>
  <date>November 25, 2017</date>
 </image>
 <image>
  <src>tongue_3.jpg</src>
  <title>Tongue</title>
  <desc>Tongue piercing using 14G straight barbell.</desc>
  <instagram>https://www.example.com/p/BeUhHj2goVO/</instagram>
  <date>January 23, 2018</date>
 </image>
</images>


<!--
 <image>
  <src></src>
  <title></title>
  <desc></desc>
  <instagram></instagram>
  <date></date>
 </image>
-->
pagination
php
xml
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2018-05-12 05:32:56

我做了几个修改，第一个是限制对图像的循环，使其只适用于实际显示的图像。

代码语言：javascript
复制
    for ($currentRecord = (($startPage-1)*$perPage); $currentRecord < (($startPage-1)*$perPage)+$perPage && $currentRecord < count($imagexml->image); $currentRecord++) {
            $image = $imagexml->image[$currentRecord];
    //foreach ($imagexml->image as $image) {
        //$currentRecord += 1;
        //if ($currentRecord >= ($startPage * $perPage) && $currentRecord < ($startPage * $perPage + $perPage)) {

在使用XML文件时，可以将节点元素(在本例中为<image>)元素引用为数组。它所做的不是循环遍历所有文档，而是从页面的开始图像循环，并循环每个页面上的图像数量，或者列表的末尾(注释掉的代码是用来显示它替换的行)。

第二，链接。我认为问题是，当你有23张图片，每页2张，($currentRecord / $perPage)会给出11.5张，所以当你在1秒内上升时，这个值会在11点停止。你需要做的是使用ceil()，把答案打成12圈。通过上面的修改，你可以使用下面的代码.

代码语言：javascript
复制
// and the pagination:
$numberPages = ceil((count($imagexml->image) / $perPage));
for ($i = 1; $i <= $numberPages; $i ++) {
    echo ("<li class='page-item'><a class='page-link'  href='?page=" . $i . "'>" . $i . "</a></li>");
}
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/50302659

复制
相关文章

相似问题

领券

腾讯云开发者

扫码关注腾讯云开发者

扫码关注腾讯云开发者

领取腾讯云代金券

热门产品

热门推荐

更多推荐

Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有 

深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 粤公网安备44030502008569号

腾讯云计算（北京）有限责任公司 京ICP证150476号 |  京ICP备11018762号

问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档