这篇文章主要介绍了codeigniter中测试通过的分页类示例,需要的朋友可以参考下
通用分页类(以Codeigniter测试)
page_list.php 复制代码 代码如下: <?php if( ! defined('BASEPATH')) die('No Access');
/** * 分页类 */ class Page_list {
/** * 总数据 * @var int */ private $total; /** * 每页显示数据 * @var int */ private $size; /** * 当前页数 * @var int */ private $page; /** * 页数列表左右页数 * @var int */ private $len;
/** * 总页数 * @var int */ private $page_total; /** * 页码列表 * @var array */ private $page_list;
/** * 基准地址 * @var string */ private $base_url; /** * 替换标志 * @var string */ private $place; /** * 分页样式 * @var string */ private $style;
/** * 构造函数 * * @param array $config 配置数组 */ public function __construct($config = array()){ // 初始化默认值 $this->total = 0; $this->size = 20; $this->page = 1; $this->len = 4; $this->page_total = 1; $this->page_list = array(); $this->base_url = '?page=-page-'; $this->place = '-page-'; $this->style = $this->get_default_style(); $this->initialize($config); }
/** * 初始化分页 * * @param array $config 配置数组 */ public function initialize($config = array()){ // 取得配置值 if(is_array($config)){ if(array_key_exists('total', $config)) $this->total = @intval($config['total']); if(array_key_exists('size', $config)) $this->size = @intval($config['size']); if(array_key_exists('page', $config)) $this->page = @intval($config['page']); if(array_key_exists('len', $config)) $this->len = @intval($config['len']); if(array_key_exists('base_url', $config)) $this->base_url = @strval($config['base_url']); if(array_key_exists('place', $config)) $this->place = @strval($config['place']); if(array_key_exists('style', $config)) $this->style = @strval($config['style']); } // 修正值 if($this->total<0) $this->total = 0; if($this->size<=0) $this->size = 20; if($this->page<=0) $this->page = 1; if($this->len<=0) $this->len = 4; // 执行分页算法 $this->page_total = ceil($this->total/$this->size); if($this->page_total<=0) $this->page_total = 1; if($this->page>$this->page_total) $this->page = $this->page_total; if($this->page-$this->len>=1){ for($i=$this->len; $i>0; $i--){ $this->page_list[] = $this->page - $i; } }else{ for($i=1; $i<$this->page; $i++){ $this->page_list[] = $i; } } $this->page_list[] = $this->page; if($this->page+$this->len<=$this->page_total){ for($i=1; $i<=$this->len; $i++){ $this->page_list[] = $this->page + $i; } }else{ for($i=$this->page+1; $i<=$this->page_total; $i++){ $this->page_list[] = $i; } } }
/** * 默认分页样式 * * @return string */ public function get_default_style(){ $style = '<style type="text/css">'; $style .= ' div.page_list { margin:0;padding:0;overflow:hidden;zoom:1;}'; $style .= ' div.page_list a {display:block;float:left;height:20px;line-height:21px; font-size:13px;font-weight:normal;font-style:normal;color:#133DB6;text-decoration:none;margin:0 3px;padding:0 7px;overflow;zoom:1;}'; $style .= ' div.page_list a.page_list_act { font-size:13px;padding:0 6px;}'; $style .= ' div.page_list a:link, div.page_list a:visited { background:#FFF;border:1px #EEE solid;text-decoration:none;}'; $style .= ' div.page_list a:hover, div.page_list a:active { background:#EEE;text-decoration:none;}'; $style .= ' div.page_list strong { display:block;float:left;height:20px;line-height:21px;font-size:13px;font-weight:bold;font-style:normal;color:#000;margin:0 3px;padding:0 8px;overflow:hidden;zoom:1;}'; $style .= ' </style>'; return $style; }
/** * 是否是第一页 * * @return bool */ public function is_first_page(){ return $this->page == 1; }
/** * 获取第一页页码 * * @return int */ public function get_first_page(){ return 1; }
/** * 是否是最后一页 * * @return bool */ public function is_last_page(){ return $this->page == $this->page_total; }
/** * 获取最后一页页码 * * @return int */ public function get_last_page(){ return $this->page_total; }
/** * 是否存在上一页 * * @return bool */ public function has_prev_page(){ return $this->page > 1; }
/** * 是否存在下一页 * * @return bool */ public function has_next_page(){ return $this->page < $this->page_total; }
/** * 获取上一页页码 * * @return int */ public function get_prev_page(){ return $this->has_prev_page() ? $this->page - 1 : $this->page; }
/** * 获取下一页页码 * * @return int */ public function get_next_page(){ return $this->has_next_page() ? $this->page + 1 : $this->page; }
/** * 获取当前页页码 * * @return int */ public function get_curr_page(){ return $this->page; }
/** * 获取总数据数 * * @return int */ public function get_total(){ return $this->total; }
/** * 获取每页显示数据数 * * @return int */ public function get_size(){ return $this->size; }
/** * 获取总页数 * * @return int */ public function get_total_page(){ return $this->page_total; }
/** * 构建并返回分页代码 * * @param string $base_url 基准地址 * @param string $place 替换标志 * @param string $style 分页样式 * @return string 分页HTML代码 */ public function display($base_url = '', $place = '', $style = ''){ if($base_url==='') $base_url = $this->base_url; if($place==='') $place = $this->place; if($style==='') $style = $this->style; $str = $style.'<div class="page_list">'; if( ! $this->is_first_page()){ $str .= '<a class="page_list_act" href="'.str_replace($place, $this->get_first_page(), $base_url).'">首页</a>'; } if($this->has_prev_page()){ $str .= '<a class="page_list_act" href="'.str_replace($place, $this->get_prev_page(), $base_url).'">上一页</a>'; } foreach($this->page_list as $v){ if($v==$this->page){ $str .= '<strong>' . $v . '</strong>'; }else{ $str .= '<a href="'.str_replace($place, $v, $base_url).'">'.$v.'</a>'; } } if($this->has_next_page()){ $str .= '<a class="page_list_act" href="'.str_replace($place, $this->get_next_page(), $base_url).'">下一页</a>'; } if( ! $this->is_last_page()){ $str .= '<a class="page_list_act" href="'.str_replace($place, $this->get_last_page(), $base_url).'">尾页</a>'; } $str .= '</div>'; return $str; }
} ?>
/application/view/pagelist.php 复制代码 代码如下: <?php if( ! defined('BASEPATH')) die('No Access');
class Pagelist extends CI_Controller {
public function page(){ $this->load->helper('url'); $page = $this->input->get('page'); $page = @intval($page); if($page<=0) $page = 1; $this->load->library('page_list',array('total'=>10000,'size'=>16,'page'=>$page)); $pl = $this->page_list->display(site_url('pagelist/page/page/-page-')); $this->load->view('pagelist', array('pl' => $pl)); }
} ?>
/application/view/pagelist.php 复制代码 代码如下: <!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html;charset=utf-8" /> <title>分页测试</title> </head> <body> <?php echo $pl; ?> </body> </html>
|