A simple universal paging class written by a person

Individual learning PHP written simple paging class, more versatile /** * Easy Paging class * @author:p Hpprince * @QQ: 8923052 * @date: 2014-04-22 21:08:35 */ Class page{ protected $url;//Address protected $allnum;//Total Record Count protected $current;//Current page protected $pagesize;//How many records are displayed per page protected $postfix;//suffix protected $style;//display style A total of 3 styles, 1 2 3 for the first 5 after 4, the first 3 after 3, the first 4 after 4 Public function __construct ($url, $allnum, $current, $pagesize =10, $postfix = ", $style =1) { $this->url= $url; $this->allnum= $allnum; $this->current= $current; $this->pagesize= $pagesize; $this->postfix= $postfix; $this->style= $style; } Get Total Pages protected function Maxpagenum () { $max =ceil ($this->allnum/$this->pagesize); Page over limit correction if ($this->current> $max) { $this->current= $max; } if ($this->current<1) { $this->current=1; } return $max; } Get first page link full HTML str protected function Firsturl () { if ($this->current!=1) { Return 'getUrl (1). ' title= ' View the first page "> Home "; }else{ Return ' home '; } } Get previous page link full HTML str protected function Prevurl () { if ($this->current<=1) { $fullurl = ' previous page '; }else{ $fullurl = $this->url. ($this->current-1). $this->postfix; $fullurl = ' previous page '; } return $fullurl; } Get next page link full HTML str protected function Nexturl () { if ($this->current>= $this->maxpagenum ()) { $fullurl = ' next page '; }else{ $fullurl = $this->url. ($this->current+1). $this->postfix; $fullurl = ' next page '; } return $fullurl; } Get last page link full HTML str protected function Lasturl () { if ($this->current>= $this->maxpagenum ()) { $fullurl = ' last '; }else{ $fullurl = $this->url. $this->maxpagenum (). $this->postfix; $fullurl = ' last '; } return $fullurl; } Gets the full URL of the specified page number protected function GetUrl ($pageno) { Return $this->url. $pageno. $this->postfix; } Specify display style protected function GetStyle () { Switch ($this->style) { Case 1: $before = 5; $after = 4; Break Case 2: $before = 3; $after = 3; Break Case 3: $before = 4; $after = 4; Break Default: $before = 5; $after = 4; } Return Array ($before, $after); } Get Intermediate URL 1 2 3 4 5⑥7 8 9 10 protected function Getmiddelurl () { $max = $this->maxpagenum ();//Get the total page first to correct the current page overrun problem $current = $this->current;//The current page number must be legal to ensure that the following page range must be correct Get current style List ($before, $after) = $this->getstyle (); $startno = $current-$before;//Start Page $endno = $current + $after;//End page To ensure that the output always meet the requirements, the page is not overrun, the start page increases, the end page must be increased, vice versa. while ($endno > $max | | $startno <1) { if ($endno > $max) {//End page number Hyper-bounds $endno--; if ($startno >1) { $startno--; } } if ($startno <1) {//Start page number over bounds $startno + +; if ($endno < $max) { $endno + +; } } } $STR = ";//for saving entire HTML str for ($i = $startno; $i <= $endno; $i + +) { $currenturl = $this->geturl ($i); if ($i! = $current) { $str. = "{$i}"; }else{ $str. = '. $i. '; } } return $str; } Returns the full page-paged HTML string Public Function Getpagestr () { $str = ". $this->firsturl (). $this->prevurl (); $str. = $this->getmiddelurl (); $str. = $this->nexturl (). $this->lasturl (). ' total '. $this->maxpagenum (). ' Page '. $this->allnum. '; return $str; } } ?> Copy Code

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