Nice PHP verification code class

Class Page { Private $total; Total Records Private $pagesize; How many bars are displayed per page Private $limit; Limit Private $page; Current page number Private $pagenum; Total Page number Private $url; Address Private $bothnum; The amount of digital paging is maintained on both sides Constructor method Initialization Public function __construct ($_total, $_pagesize) { $this->total = $_total? $_total:1; $this->pagesize = $_pagesize; $this->pagenum = ceil ($this->total/$this->pagesize); $this->page = $this->setpage (); $this->limit = "Limit". ($this->page-1) * $this->pagesize. ", $this->pagesize"; $this->url = $this->seturl (); $this->bothnum = 2; } Interception device Private Function __get ($_key) { return $this->$_key; } Get current page number Private Function Setpage () { if (!empty ($_get[' page ')) { if ($_get[' page '] > 0) { if ($_get[' page '] > $this->pagenum) { return $this->pagenum; } else { Return $_get[' page ']; } } else { return 1; } } else { return 1; } } Get address Private Function SetUrl () { $_url = $_server["Request_uri"]; $_par = Parse_url ($_url); if (isset ($_par[' query ')) { PARSE_STR ($_par[' query '],$_query); unset ($_query[' page '); $_url = $_par[' path ']. '? '. Http_build_query ($_query); } return $_url; }//Digital directory Private Function PageList () { for ($i = $this->bothnum; $i >=1; $i-) { $_page = $this->page-$i; if ($_page < 1) continue; $_pagelist. = ' URL. ' &page= '. $_page. ' " > '. $_page. ' '; } $_pagelist. = ' . $this->page. ' '; for ($i =1; $i <= $this->bothnum; $i +) { $_page = $this->page+ $i; if ($_page > $this->pagenum) break; $_pagelist. = ' URL. ' &page= '. $_page. ' " > '. $_page. ' '; } return $_pagelist; } Home Private Function First () { if ($this->page > $this->bothnum+1) { Return ' URL. ' " >1 ... '; } } Previous page Private Function prev () { if ($this->page = = 1) { Return ' previous page '; } Return ' URL. ' &page= '. ($this->page-1). ' " > previous page '; } Next page Private function Next () { if ($this->page = = $this->pagenum) { Return ' next page '; } Return ' URL. ' &page= '. ($this->page+1). ' " > next page '; } Last Private Function Last () { if ($this->pagenum-$this->page > $this->bothnum) { Return ' ... URL. ' &page= '. $this->pagenum. ' " > '. $this->pagenum. ' '; } } Paging information Public Function ShowPage () { $_page. = $this->first (); $_page. = $this->pagelist (); $_page. = $this->last (); $_page. = $this->prev (); $_page. = $this->next (); return $_page; } } ?> Copy Code The paging style looks like this: Instructions for use: $_page = new page ($_total,$_pagesize); Where $_total is the total number of bars in the dataset, $_pagesize is the number displayed per page. ?> Copy Code

Verification Code, PHP

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