php数组与中档数字分页

时间:2012-12-23 19:37:50

标签: php pagination

我有一个数组分页类。但该类显示所有页码。

我的意思是如果我有100页,它会显示所有100页的页码。

有人可以帮助我在这个分页课程中实现中档数字

<?php

  class pagination
  {

    /**
     * Properties array
     * @var array   
     * @access private 
     */
    private $_properties = array();

    /**
     * Default configurations
     * @var array  
     * @access public 
     */
    public $_defaults = array(
      'page' => 1,
      'perPage' => 10 
    );

    /**
     * Constructor
     * 
     * @param array $array   Array of results to be paginated
     * @param int   $curPage The current page interger that should used
     * @param int   $perPage The amount of items that should be show per page
     * @return void    
     * @access public  
     */
    public function __construct($array, $curPage = null, $perPage = null)
    {
      $this->array   = $array;
      $this->curPage = ($curPage == null ? $this->defaults['page']    : $curPage);
      $this->perPage = ($perPage == null ? $this->defaults['perPage'] : $perPage);
    }

    /**
     * Global setter
     * 
     * Utilises the properties array
     * 
     * @param string $name  The name of the property to set
     * @param string $value The value that the property is assigned
     * @return void    
     * @access public  
     */
    public function __set($name, $value) 
    { 
      $this->_properties[$name] = $value;
    } 

    /**
     * Global getter
     * 
     * Takes a param from the properties array if it exists
     * 
     * @param string $name The name of the property to get
     * @return mixed Either the property from the internal
     * properties array or false if isn't set
     * @access public  
     */
    public function __get($name)
    {
      if (array_key_exists($name, $this->_properties)) {
        return $this->_properties[$name];
      }
      return false;
    }

    /**
     * Set the show first and last configuration
     * 
     * This will enable the "<< first" and "last >>" style
     * links
     * 
     * @param boolean $showFirstAndLast True to show, false to hide.
     * @return void    
     * @access public  
     */
    public function setShowFirstAndLast($showFirstAndLast)
    {
        $this->_showFirstAndLast = $showFirstAndLast;
    }

    /**
     * Set the main seperator character
     * 
     * By default this will implode an empty string
     * 
     * @param string $mainSeperator The seperator between the page numbers
     * @return void    
     * @access public  
     */
    public function setMainSeperator($mainSeperator)
    {
      $this->mainSeperator = $mainSeperator;
    }

    /**
     * Get the result portion from the provided array 
     * 
     * @return array Reduced array with correct calculated offset 
     * @access public 
     */
    public function getResults()
    {
      // Assign the page variable
      if (empty($this->curPage) !== false) {
        $this->page = $this->curPage; // using the get method
      } else {
        $this->page = 1; // if we don't have a page number then assume we are on the first page
      }

      // Take the length of the array
      $this->length = count($this->array);

      // Get the number of pages
      $this->pages = ceil($this->length / $this->perPage);

      // Calculate the starting point 
      $this->start = ceil(($this->page - 1) * $this->perPage);

      // return the portion of results
      return array_slice($this->array, $this->start, $this->perPage);
    }

    /**
     * Get the html links for the generated page offset
     * 
     * @param array $params A list of parameters (probably get/post) to
     * pass around with each request
     * @return mixed  Return description (if any) ...
     * @access public 
     */
    public function getLinks($params = array())
    {
      // Initiate the links array
      $plinks = array();
      $links = array();
      $slinks = array();

      // Concatenate the get variables to add to the page numbering string
      $queryUrl = '';
      if (!empty($params) === true) {
        unset($params['page']);
        $queryUrl = '&amp;'.http_build_query($params);
      }

      // If we have more then one pages
      if (($this->pages) > 1) {
        // Assign the 'previous page' link into the array if we are not on the first page
        if ($this->page != 1) {
          if ($this->_showFirstAndLast) {
            $plinks[] = ' <a href="?page=1'.$queryUrl.'">&laquo;&laquo; First </a> ';
          }
          $plinks[] = ' <a href="?page='.($this->page - 1).$queryUrl.'">&laquo; Prev</a> ';
        }

        // Assign all the page numbers & links to the array
        for ($j = 1; $j < ($this->pages + 1); $j++) {
          if ($this->page == $j) {
            $links[] = ' <a class="selected">'.$j.'</a> '; // If we are on the same page as the current item
          } else {
            $links[] = ' <a href="?page='.$j.$queryUrl.'">'.$j.'</a> '; // add the link to the array
          }
        }

        // Assign the 'next page' if we are not on the last page
        if ($this->page < $this->pages) {
          $slinks[] = ' <a href="?page='.($this->page + 1).$queryUrl.'"> Next &raquo; </a> ';
          if ($this->_showFirstAndLast) {
            $slinks[] = ' <a href="?page='.($this->pages).$queryUrl.'"> Last &raquo;&raquo; </a> ';
          }
        }

        // Push the array into a string using any some glue
        return implode(' ', $plinks).implode($this->mainSeperator, $links).implode(' ', $slinks);
      }
      return;
    }
  }

更新

以下是我如何使用

$contacts = array();
if(count($contacts))
    { 
      $pagination = new pagination($contacts,  (isset($_GET['page']) ? $_GET['page'] : 1), 50);
      $ContactPages = $pagination->getResults();
  if (count($ContactPages) != 0) {
        echo $pageNumbers = $pagination->getLinks();
    }
}

2 个答案:

答案 0 :(得分:1)

首先,您应该在课程负责人中声明您的班级成员,例如$start$pages等,而不是按需声明他们。这将提高可读性和代码质量,并有助于避免错误。

要修复您的类,请将getLinks()中的for循环及其周围的代码更改为:

// Assign the 'previous page' link into the array if we are not on the first page
if ($this->page != 1) {
  if ($this->_showFirstAndLast) {
    $plinks[] = ' <a href="?page=1'.$queryUrl.'">&laquo;&laquo; First </a> ';
  }
  $plinks[] = ' <a href="?page='.($this->start).$queryUrl.'">&laquo; Prev</a> ';
}

// Assign all the page numbers & links to the array
for ($j = $this->start + 1; $j < ($this->start + $this->pages + 1); $j++) {
   if ($this->page == $j) {
     $links[] = ' <a class="selected">'.$j.'</a> '; // If we are on the same page as the current item
   } else {
     $links[] = ' <a href="?page='.$j.$queryUrl.'">'.$j.'</a> '; // add the link to the array
   }
}

// Assign the 'next page' if we are not on the last page
if ($this->page < $this->pages) {
    $slinks[] = ' <a href="?page='.($this->start + $this->page + 2).$queryUrl.'"> Next &raquo; </a> ';
    if ($this->_showFirstAndLast) {
        $slinks[] = ' <a href="?page='.($this->pages).$queryUrl.'"> Last &raquo;&raquo; </a> ';
    }
}

你没想过这个 - >开始记住。

我已经对它进行了基本的测试,但它确实有效。

答案 1 :(得分:0)

您可以在这里找到一个简单的解决方案: http://tiffanybbrown.com/2008/12/14/simple-pagination-for-arrays-with-php-5/