本文實例為大家分享了php分頁類的具體代碼，供大家參考，具體內容如下
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
<?php/*核心:首頁、上一頁、下一頁、尾頁的url*//*超全局$_SERVER*/$page = new Page(5,60);var_dump($page->allUrl());class Page{// 每頁顯示的個數 protected $number;// 一共有多少數據 protected $totalCount;// 當前頁 protected $page;// url protected $url; public function __construct($number,$totalCount){ $this->number= $number; $this->totalCount = $totalCount; //得到總頁數 $this->totalPage = $this->getTotalPage(); //得到當前頁數 $this->page = $this->getPage(); //得到URL $this->url = $this->getUrl(); echo $this->url; } /*得到總頁數并向上取整*/ protected function getTotalPage(){ return ceil($this->totalCount/$this->number); } /**/ protected function getPage(){ if (empty($_GET['page'])){ $page=1; }elseif ($_GET['page'] > $this->totalPage){ $page = $this->totalPage; }elseif ($_GET["page"]<1){ $page = 1; }else{ $page = $_GET['page']; } return $page; } protected function getUrl(){ //得到協議名 $scheme = $_SERVER['REQUEST_SCHEME']; //得到主機名 $host= $_SERVER['SERVER_NAME']; //得到端口號 $port = $_SERVER['SERVER_PORT']; //得到路徑和請求字符串 $url = $_SERVER['REQUEST_URI']; /*中間做處理,要將page=5等這種字符串拼接URL 中，所以如果原來的url中有page這個參數，我們首先 需要將原來的page參數給清空*/ $urlArray = parse_url($url);// var_dump($urlArray); $path = $urlArray['path']; if (!empty($urlArray['query'])){ //將query中的值轉化為數組 parse_str($urlArray['query'],$array); //如果他有page就將它刪掉 unset($array['page']); //將關聯數組轉化為query $query = http_build_query($array); //不為空的話就與path連結 if ($query != ''){ $path = $path.'?'.$query; } } return 'http://'. $host.':'.$port.$path; } protected function setUrl($str){ if (strstr($this->url, '?')){ $url = $this->url.'&'.$str; }else{ $url = $this->url.'?'.$str; } return $url; } /*所有的url*/ public function allUrl(){ return [ 'first' => $this->first(), 'next' => $this->next(), 'prev'=> $this->prev(), 'end'=> $this->end(), ]; } /*首頁*/ public function first(){ return $this->setUrl('page=1'); } /*下一頁*/ public function next(){ //根據當前page得帶下一頁的頁碼 if ($this->page+1 > $this->totalPage) { $page = $this->totalPage; }else{ $page = $this->page+1; } return $this->setUrl('page='.$page); } /*上一頁*/ public function prev(){ //根據當前page得帶下一頁的頁碼 if ($this->page - 1 < 1) { $page = 1; }else{ $page = $this->page-1; } return $this->setUrl('page='.$page); } /*尾頁*/ public function end(){ return $this->setUrl('page='.$this->totalPage); } /*limit 0,5*/ public function limit(){ $offset = ($this->page-1)*$this->number; return $offset.','.$this->number; } } |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
