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PHP分页类添加查询条件
请问分页类显示的页码怎么加入查询的条件,现在查询出来的页码链接都没有加上查询条件的

php分页类源码

<br><br><?php <br />//为了避免重复包含文件而造成错误,加了判断函数是否存在的条件:<br>@$page = $_GET['page'];<br>if(!function_exists('pageft')){<br>//定义函数pageft(),三个参数的含义为:<br>//$totle:信息总数;<br>//$displaypg:每页显示信息数,这里设置为默认是20;<br>//$url:分页导航中的链接,除了加入不同的查询信息“page”外的部分都与这个URL相同。<br>//   默认值本该设为本页URL(即$_SERVER["REQUEST_URI"]),但设置默认值的右边只能为常量,所以该默认值设为空字符串,在函数内部再设置为本页URL。<br>function pageft($totle,$displaypg=20,$shownum=0,$showtext=0,$showselect=0,$showlvtao=7,$url=''){<br><br>//定义几个全局变量:<br>//$page:当前页码;<br>//$firstcount:(数据库)查询的起始项;<br>//$pagenav:页面导航条代码,函数内部并没有将它输出;<br>//$_SERVER:读取本页URL“$_SERVER["REQUEST_URI"]”所必须。<br>global $page,$firstcount,$pagenav,$_SERVER;<br><br>//为使函数外部可以访问这里的“$displaypg”,将它也设为全局变量。注意一个变量重新定义为全局变量后,原值被覆盖,所以这里给它重新赋值。<br>$GLOBALS["displaypg"]=$displaypg;<br><br>if(!$page) $page=1;<br><br>//如果$url使用默认,即空值,则赋值为本页URL:<br>if(!$url){ $url=$_SERVER["REQUEST_URI"];}<br><br>//URL分析:<br>$parse_url=parse_url($url);<br>$url_query=$parse_url["query"]; //单独取出URL的查询字串<br>if($url_query){<br>//因为URL中可能包含了页码信息,我们要把它去掉,以便加入新的页码信息。<br>//这里用到了正则表达式,请参考“PHP中的正规表达式”<br>$url_query=ereg_replace("(^|&)page=$page","",$url_query);<br><br>//将处理后的URL的查询字串替换原来的URL的查询字串:<br>$url=str_replace($parse_url["query"],$url_query,$url);<br><br>//在URL后加page查询信息,但待赋值:<br>if($url_query) $url.="&page"; else $url.="page";<br>}else {<br>$url.="?page";<br>}<br><br>//页码计算:<br>$lastpg=ceil($totle/$displaypg); //最后页,也是总页数<br>$page=min($lastpg,$page);<br>$prepg=$page-1; //上一页<br>$nextpg=($page==$lastpg ? 0 : $page+1); //下一页<br>$firstcount=($page-1)*$displaypg;<br><br>//开始分页导航条代码:<br>if ($showtext==1){<br>$pagenav="<span>".($totle?($firstcount+1):0)."-".min($firstcount+$displaypg,$totle)."/$totle 记录</span><span>$page/$lastpg 页</span>";<br>}else{<br>$pagenav="";	<br>}<br>//如果只有一页则跳出函数:<br>if($lastpg<br>if($prepg) $pagenav.="<a>首页</a>"; else $pagenav.='<span>首页</span>';<br>if($prepg) $pagenav.="<a>上一页</a>"; else $pagenav.='<span>上一页</span>';<br>if ($shownum==1){<br>	$o=$showlvtao;//中间页码表总长度,为奇数<br>	$u=ceil($o/2);//根据$o计算单侧页码宽度$u<br>	$f=$page-$u;//根据当前页$currentPage和单侧宽度$u计算出第一页的起始数字<br>	//str_replace('{p}',,$fn)//替换格式<br>	if($f	$n=$lastpg;//总页数,20页<br>	if($n	if($page==1){<br>		$pagenav.='<span>1</span>';<br>	}else{<br>		$pagenav.="<a>1</a>";<br>	}<br>	///////////////////////////////////////<br>	for($i=1;$i		if($n		$c=$f+$i;//从第$c开始累加计算<br>		if($i==1 && $c>2){<br>			$pagenav.='...';<br>		}<br>		if($c==1){continue;}<br>		if($c==$n){break;}<br>		if($c==$page){<br>			$pagenav.='<span>'.$page.'</span>';<br>		}else{<br>			$pagenav.="<a>$c</a>";<br>		}<br>		if($i==$o && $c			$pagenav.='...';<br>		}<br>		if($i>$n){break;}//当总页数小于页码表长度时	<br>	}<br>	if($page==$n && $n!=1){<br>		$pagenav.='<span>'.$n.'</span>';<br>	}else{<br>		$pagenav.="<a>$n</a>";<br>		}<br>}<br><br>if($nextpg) $pagenav.="<a>下一页</a>"; else $pagenav.='<span>下一页</span>';<br>if($nextpg) $pagenav.="<a>尾页</a>"; else $pagenav.='<span>尾页</span>';<div class="clear">
                 
              
              
        
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