一个简单的php分页小模块
代码语言：javascript复制<?php
$str=pagestr("http:www.abc.com?",195,11,10,8);
print($str);
//url连接，countdatas表数据总行数，currentpage第几页（0是第一页），everpage每页多少行,beforlaterln前后长度
function pagestr($url,$countdatas,$currentpage=0,$everpage=10,$beforlaterln=5){
$page="";
$intpart=$countdatas/$everpage;
$remainderpart=$countdatas%$everpage;//余数
$countpage=floor($intpart);//取整数
$currentpage = $currentpage<0 ? 0:$currentpage;
if($remainderpart==0){//余数判断
$currentpage=$currentpage>$countpage-1?$countpage-1:$currentpage;
$countpage;//总页数
$pp=$currentpage 1;
$strbe="";
$pagebefore=$pp-$beforlaterln-1;
for($i=$pp; $i > $pagebefore; $i--){
if($i>0 && $i<$pp){
$strbe="<a class='num' href='".$url."&p=".($i-1)."'>".$i."</a>".$strbe;
}
}
if($pp<=1){$strbe="";}else{$strbe="<a class='num' href='".$url."&p=0'>首页</a>"."<a class='num' href='".$url."&p=".($pp-2)."'>上一页</a>".$strbe;}
$strmid="<span class='current'>".$pp."</span>";
$strlater="";
$pagelater=$pp $beforlaterln;
for($i=$pp; $i < $pagelater; $i ){
if($i<$countpage){
$strlater.="<a class='num' href='".$url."&p=".($i)."'>".($i 1)."</a>";
}
}
if($pp>=$countpage){}else{$strlater.="<a class='num' href='".$url."&p=".$pp."'>下一页</a>"."<a class='num' href='".$url."&p=".($countpage-1)."'>尾页</a>";}
$page=$strbe.$strmid.$strlater;
}else{
$countpage =1;//总页数
$currentpage=$currentpage>$countpage-1?$countpage-1:$currentpage;
$pp=$currentpage 1;
$strbe="";
$pagebefore=$pp-$beforlaterln-1;
for($i=$pp; $i > $pagebefore; $i--){
if($i>0 && $i<$pp){
$strbe="<a class='num' href='".$url."&p=".($i-1)."'>".$i."</a>".$strbe;
}
}
if($pp<=1){$strbe="";}else{$strbe="<a class='num' href='".$url."&p=0'>首页</a>"."<a class='num' href='".$url."&p=".($pp-2)."'>上一页</a>".$strbe;}
$strmid="<span class='current'>".$pp."</span>";
$strlater="";
$pagelater=$pp $beforlaterln;
for($i=$pp; $i < $pagelater; $i ){
if($i<$countpage){
$strlater.="<a class='num' href='".$url."&p=".($i)."'>".($i 1)."</a>";
}
}
if($pp>=$countpage){}else{$strlater.="<a class='num' href='".$url."&p=".$pp."'>下一页</a>"."<a class='num' href='".$url."&p=".($countpage-1)."'>尾页</a>";}
$page=$strbe.$strmid.$strlater;
}
return "共".$countpage."页".$page;
}
?>运行后得到一下字符串
代码语言：javascript复制共20页<a class='num' href='http://www.abc.com?&p=0'>首页</a>
<a class='num' href='http://www.abc.com?&p=10'>上一页</a>
<a class='num' href='http://www.abc.com?&p=3'>4</a>
<a class='num' href='http://www.abc.com?&p=4'>5</a>
<a class='num' href='http://www.abc.com?&p=5'>6</a>
<a class='num' href='http://www.abc.com?&p=6'>7</a>
<a class='num' href='http://www.abc.com?&p=7'>8</a>
<a class='num' href='http://www.abc.com?&p=8'>9</a>
<a class='num' href='http://www.abc.com?&p=9'>10</a>
<a class='num' href='http://www.abc.com?&p=10'>11</a>
<span class='current'>12</span>
<a class='num' href='http://www.abc.com?&p=12'>13</a>
<a class='num' href='http://www.abc.com?&p=13'>14</a>
<a class='num' href='http://www.abc.com?&p=14'>15</a>
<a class='num' href='http://www.abc.com?&p=15'>16</a>
<a class='num' href='http://www.abc.com?&p=16'>17</a>
<a class='num' href='http://www.abc.com?&p=17'>18</a>
<a class='num' href='http://www.abc.com?&p=18'>19</a>
<a class='num' href='http://www.abc.com?&p=19'>20</a>
<a class='num' href='http://www.abc.com?&p=12'>下一页</a>
<a class='num' href='http://www.abc.com?&p=19'>尾页</a>希望对大家有帮助，谢谢！
