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我写的分页类(支持POST)
目前网上的分页类都需要指定页面和参数,我这个分页类可以自动获得页面和GET,POST参数,免去 特别适合那些高级搜索结果列表页面
<?php
<?php
class issPage {
//重写与否
var $rewrite= false ;
var $pvar;
//------分页设置-----------
function issPage($total,$pagesize=15,$current=false,$pvar = "page") {
$this->pvar=$pvar;
$this->total=$total;
$this->pageMax = ceil($total/$pagesize);//总页数
if (!$current) $current = empty($_GET[$this->pvar]) ? 1 : intval($_GET[$this->pvar]) ;
if ($current > $this->pageMax) $current = $this->pageMax;
if ($current < 1) $current = 1;
$this->curr = $current;//当前页面
$this->psize = $pagesize;//页面大小
$this->varstr='';
$this->output='';
}
//-----设置除$_GET外的追加变量---------
function setVar($data) {
foreach ($data as $k=>$v) {
$_GET[$k]=$v;
}
}
function output() {
$start = $this->curr-1;
if ($start<1) $start=1;
$end = $start+2;
if ($end > $this->pageMax)$end=$this->pageMax;
$pnext=($this->curr+1> $this->pageMax)? $this->pageMax:$this->curr+1;
if($this->pageMax>1){
$this->output='<form method="GET" class="issPage" onsubmit="subpage();return false">';
$this->output.=' <table border="0" cellpadding="0" cellspacing="0">';
$this->output.=' <tr>';
$this->output .=' <td class="page_count">'.$this->curr.'/'.$this->pageMax.'</td>';
$this->output .= ' <td class="page_content">';
$this->output .= ' <a id="page_prev" href='.$this->FormatUrl($this->curr-1).'>前一页</a>';
for ($i=$start; $i<=$end; $i++) {
if($this->curr == $i)$this->output .= '<span>'.$i.'</span>';
else $this->output .= ' <a href='.$this->FormatUrl($i).'>'.$i.'</a>';
}
$this->output .= ' <a id="page_next" href='.$this->FormatUrl($pnext).'>后一页</a>';
$this->output.=' </td>';
$this->output.=' <td class="page_cbg">';
$this->output.=' <input type="text" name="'.$this->pvar.'" id="'.$this->pvar.'" class="page_query"/>';
$this->output.=' </td>';
$this->output.=' <td class="page_cbg">';
$this->output.=' <input type="submit" value="GO" class="page_submit" />';
$this->output.=' </td>';
$this->output.=' <td class="page_end">';
$this->output.=' </td>';
$this->output.=' </tr>';
$this->output.='</table>';
$this->output.="</form>";
$this->output.='<script>function subpage(page){self.location="'.$this->FormatUrl().'&page="+document.getElementById("'.$this->pvar.'").value;}</script>';
return $this->output;
}else{
return null;
}
}
//生成Limit语句
function limit(){
return ' LIMIT '.(($this->curr - 1) * $this->psize).', '.$this->psize.' ';
}
function between(){
return ' BETWEEN '.($this->total - $this->curr * $this->psize + 1).' AND '.($this->total - ($this->curr - 1) * $this->psize).' ';
}
//获得合法的URL地址@Private
function FormatUrl($num=0){//格式化URL@Private
if(empty($_SERVER['REDIRECT_URL']) || substr($_SERVER['REDIRECT_URL'],-4)=='.php') $this->rewrite=false;
//是否重写(注意: 要求文件为.html结尾且重写规则中页码需要在最后。setVar无效,直接替换地址栏url)
$wholeurl="http://".$_SERVER['SERVER_NAME'].$_SERVER['PHP_SELF']."?";
$_GET[$this->pvar]=$num;
if($this->rewrite){//重写的用REQUEST_URI进行判断
$pos = strpos($_SERVER['REQUEST_URI'], '-'.$this->pvar."_".$this->curr.'.html');
$pos2 = strpos($_SERVER['REQUEST_URI'], '-'.$this->pvar."_".$this->curr.'-') ;
if( $pos === false && $pos2 === false) {
Return "http://".$_SERVER['SERVER_NAME'].str_replace('.html',"-".$this->pvar."_$num.html",$_SERVER['REQUEST_URI']);
}else {
if($pos){
$str=str_replace('-'.$this->pvar."_".$this->curr.'.html',"-".$this->pvar."_$num.html",$_SERVER['REQUEST_URI']);
}else{
$str=str_replace('-'.$this->pvar."_".$this->curr.'-', "-".$this->pvar."_$num-", $_SERVER['REQUEST_URI']);
}
Return "http://".$_SERVER['SERVER_NAME'].$str;
}
Return $wholeurl;
}else{//未重写的用PHP_SELF+QUERY_STRING进行判断
$_GET=array_merge($_GET, $_POST);
foreach($_GET as $k =>$v){
$wholeurl.=$k."=".urlencode($v)."&";
}
Return substr($wholeurl, 0 ,-1);//去掉末尾&
}
}
}
?>
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