A useful PHP page-out class

/* Functional PHP Page-out class Subpages */ Class subpages{ Private $each _disnums;//The number of entries displayed per page private $nums;//Total number of entries Private $current _page;//the currently selected page Private $sub _pages;//pages per display private $pageNums;//Total pages Private $page _array = Array ();//the array used to construct pagination Private $subPage _link;//links for each page Private $subPage _type;//shows the type of paging /* __construct is a subpages constructor that is used to run automatically when a class is created. @ $each _disnums The number of entries displayed per page @nums Total number of entries @current_num the currently selected page @sub_pages number of pages per display @subPage_link links for each page @subPage_type show the type of paging When @subpage_type=1 is the normal paging mode Example: A total of 4,523 records, each page shows 10, the current 1th/453 page [first] [prev] [next] [last page] When @subpage_type=2 is a classic page-out style Example: Current 1th 453 page [first] [prev] 1 2 3 4 5 6 7 8 9 10 [next] [last] */ function __construct ($each _disnums, $nums, $current _page, $sub _pages, $subPage _link, $subPage _type) { $this->each_disnums=intval ($each _disnums); $this->nums=intval ($nums); if (! $current _page) { $this->current_page=1; }else{ $this->current_page=intval ($current _page); } $this->sub_pages=intval ($sub _pages); $this->pagenums=ceil ($nums/$each _disnums); $this->subpage_link= $subPage _link; $this->show_subpages ($subPage _type); echo $this->pagenums. " --". $this->sub_pages; } /* The __destruct destructor is called when the class is not in use, and the function is used to free resources. */ function __destruct () { unset ($each _disnums); Unset ($nums); unset ($current _page); unset ($sub _pages); Unset ($pageNums); unset ($page _array); unset ($subPage _link); unset ($subPage _type); } /* The Show_subpages function is used inside the constructor. and used to determine what kind of paging to show. */ function show_subpages ($subPage _type) { if ($subPage _type = = 1) { $this->subpagecss1 (); }elseif ($subPage _type = = 2) { $this->subpagecss2 (); } } /* The function used to initialize the array that created the paging. */ function Initarray () { for ($i =0; $i < $this->sub_pages; $i +) { $this->page_array[$i]= $i; } return $this->page_array; } /* Construct_num_page the function used to construct the displayed entry Even if: [1][2][3][4][5][6][7][8][9][10] */ function Construct_num_page () { if ($this->pagenums < $this->sub_pages) { $current _array=array (); for ($i =0; $i < $this->pagenums; $i +) { $current _array[$i]= $i +1; } }else{ $current _array= $this->initarray (); if ($this->current_page <= 3) { for ($i =0; $i<> $current _array[$i]= $i +1; } }elseif ($this->current_page <= $this->pagenums && $this->current_page > $this->pagenums-$ This->sub_pages + 1) { for ($i =0; $i<> $current _array[$i]= ($this->pagenums)-($this->sub_pages) +1+ $i; } }else{ for ($i =0; $i<> $current _array[$i]= $this->current_page-2+ $i; } } } return $current _array; } /* Constructing the paging of normal mode Total 4,523 records, per page 10 article, current 1th/453 page [first] [prev] [Next] [end page] */ function SubPageCss1 () { $subPageCss 1str= ""; $SUBPAGECSS 1str.= "Total". $this->nums. " Record, "; $subPageCss 1str.= "per page". $this->each_disnums. " Article, "; $subPageCss 1str.= "Current section". $this->current_page. " /". $this->pagenums." Page "; if ($this->current_page > 1) { $FIRSTPAGEURL = $this->subpage_link. " 1 "; $PREWPAGEURL = $this->subpage_link. ($this->current_page-1); $subPageCss 1str.= "[Home]"; $subPageCss 1str.= "[prev]"; }else { $subPageCss 1str.= "[Home]"; $subPageCss 1str.= "[prev]"; } if ($this->current_page < $this->pagenums) { $LASTPAGEURL = $this->subpage_link. $this->pagenums; $NEXTPAGEURL = $this->subpage_link. ($this->current_page+1); $subPageCss 1str.= "[next page]"; $subPageCss 1str.= "[Last]"; }else { $subPageCss 1str.= "[next page]"; $subPageCss 1str.= "[Last]"; } echo $subPageCss 1Str; } /* Constructing the pagination of Classic mode Current 1th/453 [first] [prev] 1 2 3 4 5 6 7 8 9 10 [next] [last] */ function SubPageCss2 () { $subPageCss 2str= ""; $subPageCss 2str.= "Current section". $this->current_page. " /". $this->pagenums." Page "; if ($this->current_page > 1) { $FIRSTPAGEURL = $this->subpage_link. " 1 "; $PREWPAGEURL = $this->subpage_link. ($this->current_page-1); $subPageCss 2str.= "[Home]"; $subPageCss 2str.= "[prev]"; }else { $subPageCss 2str.= "[Home]"; $subPageCss 2str.= "[prev]"; } $a = $this->construct_num_page (); for ($i =0; $i<> $s = $a [$i]; if ($s = = $this->current_page) { $subPageCss 2str.= "[". $s. "]"; }else{ $url = $this->subpage_link. $s; $subPageCss 2str.= "[". $s. "]"; } } if ($this->current_page < $this->pagenums) { $LASTPAGEURL = $this->subpage_link. $this->pagenums; $NEXTPAGEURL = $this->subpage_link. ($this->current_page+1); $subPageCss 2str.= "[next page]"; $subPageCss 2str.= "[Last]"; }else { $subPageCss 2str.= "[next page]"; $subPageCss 2str.= "[Last]"; } echo $subPageCss 2Str; } } ?> Copy Code Test page, test.php Require_once ("subpages.php"); Number of bars to display per page $page _size=20; Total number of entries $nums = 1024; Number of pages per display $sub _pages=10; Get the current is the first few pages $pageCurrent =$_get["P"]; if (! $pageCurrent) $pageCurrent = 1; $subPages =new Subpages ($page _size, $nums, $pageCurrent, $sub _pages, "test.php?p=", 2); ?> Copy Code

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