class pagination 独立分页类
调用方式：
$pagenation = new pagination( 4, 10, 200 ); // 4(第一个参数) = currentpage, 10(第二个参数) = pagesize, 200(第三个参数) = 总数
$pagenation->set_link( 'http://www.360hqb.com' );
$pagenation->show();
set_link( 'http://www.360hqb.com' ); * $pagenation->show(); */class java_pagination{ protected $_total = 0; protected $_total_page = 0; protected $_page = 1; protected $_page_size = 10; protected $_link = ''; protected $_grep = 3; protected $_admin = false; protected $_css_next = 'next-page'; protected $_css_prev = 'prev-page'; protected $_css_curr = 'curr-page'; protected $_css_page = 'page-nav inline-block'; public function __construct ( $page, $page_size, $total, $admin = false ) { $this->set_current_page( $page ); $this->set_page_size( $page_size ); $this->set_total( $total ); if ( $admin ) { $this->_admin = $admin; } //$this->_link = $_server['request_uri']; $this->set_link( $_server['request_uri'] ); } public function set_link ( $link, $is_shop = true ) { $len = strlen( $link ); $substr = substr( $link, $len - 1 ); if ( '&' == $substr ) { $link = substr( $link, 0, $len - 1 ); } $pos = strpos( $link, '?' ); if ( $pos ) { $link = substr( $link, 0, $pos ); } if ( !empty( $_get ) ) { $link .= '?'; foreach ( $_get as $k=>$v ) { if ( 'page' == strtolower( $k ) ) { continue; } $link .= $k.'='.$v.'&'; } $len = strlen( $link ); $substr = substr( $link, $len - 1 ); if ( '&' == $substr ) { $link = substr( $link, 0, $len - 1); } } elseif ( isset( $_server['query_string'] ) and !empty( $_server['query_string'] ) and $is_shop ) { $link .= '?'.$_server['query_string']; $len = strlen( $link ); $substr = substr( $link, $len - 1 ); if ( '&' == $substr ) { $link = substr( $link, 0, $len - 1); } } $this->_link = $link; } public function set_page_size ( $page_size ) { if ( empty( $page_size ) ) { $this->_page_size = 10; } else { $this->_page_size = (int) $page_size; } } public function set_total ( $total ) { $page_size = empty( $this->_page_size )?10:$this->_page_size; $this->_total = $total; if ( 0 == ( $total % $page_size ) ) { $this->_total_page = intval( $total / $page_size ); } else { $this->_total_page = intval( $total / $page_size ) + 1; } if ( $this->_page > $this->_total_page ) { $this->_page = $this->_total_page; } } public function set_current_page ( $page ) { if ( empty( $page ) ) { $this->_page = 1; } else { $this->_page = (int) $page; } } public function get_next_page_btn () { if ( $this->_page _total_page ) { $link = ''; if ( strpos( $this->_link, '?' ) ) { $link = $this->_link.'&page='.( $this->_page + 1 ); } else { $link = $this->_link.'?page='.( $this->_page + 1 ); } if ( $this->_admin ) { return '下一页'; } else { return '_css_next.'>下一页'; } } if ( $this->_admin ) return '下一页 ?'; else return ''; } public function get_prev_page_btn () { if ( $this->_page > 1 ) { $link = ''; if ( strpos( $this->_link, '?' ) ) { $link = $this->_link.'&page='.( $this->_page - 1 ); } else { $link = $this->_link.'?page='.( $this->_page - 1 ); } if ( $this->_admin ) { return '上一页'; } else { return '_css_prev.'>上一页'; } } if ( $this->_admin ) return '? 上一页'; else return ''; } public function get_current_page () { if ( $this->_admin ) return ''.$this->_page.''; else return '_css_curr.'>'.$this->_page.''; } public function get_page_link ( $page ) { $link = ''; if ( strpos( $this->_link, '?' ) ) { $link = $this->_link.'&page='.$page; } else { $link = $this->_link.'?page='.$page; } if ( $this->_admin ) { return ''.$page.''; } else { return ''.$page.''; } } public function get_prev_pages () { $pages = array(); $begin = $this->_page - $this->_grep; if ( $begin { $begin = 1; } elseif ( $begin > 2 ) { $pages[] = $this->get_page_link( 1 ); if ( $this->_admin ) { $pages[] = ' ... '; } else { $pages[] = '...'; } } elseif ( $begin == 2 ) { $pages[] = $this->get_page_link( 1 ); } for ( $i = $begin; $i _page; $i++ ) { $pages[] = $this->get_page_link( $i ); } return $pages; } public function get_next_pages () { $pages = array(); $begin = $this->_page + 1; if ( $begin _total_page ) { $end = $begin + $this->_grep; if ( $end > $this->_total_page ) { $end = $this->_total_page; } for ( $i = $begin; $i { $pages[] = $this->get_page_link( $i ); } if ( $i _total_page ) { if ( $this->_admin ) { $pages[] = ' ... '; } else { $pages[] = '...'; } $pages[] = $this->get_page_link( $this->_total_page ); } else { $pages[] = $this->get_page_link( $this->_total_page ); } } elseif ( $begin == $this->_total_page ) { $pages[] = $this->get_page_link( $this->_total_page ); } return $pages; } public function show () { if ( $this->_total_page { return; } if ( $this->_admin ) { echo '';
echo '共有'.$this->_total.'条记录'; } else { echo '_css_page.'>'; } echo $this->get_prev_page_btn(); $prev_pages = $this->get_prev_pages (); if ( !empty( $prev_pages ) ) { foreach ( $prev_pages as $page ) { echo $page; } } echo $this->get_current_page(); $next_pages = $this->get_next_pages (); if ( !empty( $next_pages ) ) { foreach ( $next_pages as $page ) { echo $page; } } echo $this->get_next_page_btn(); if ( $this->_admin ) { echo ''; } else { echo ''; } }}
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