search
Homephp教程PHP源码PHP分页函数仿Google分页

PHP代码

/**
 * 分页函数
 * @param int $total    总页数
 * @param int $pagesize 每页几条
 * @param string $pkey  url中页面变量名称
 * @param string $url   基础url,其中的{page}会被替换为页码
 * 依赖函数 request_uri httpInt
 */
function page($total,$pagesize=10,$pkey='p',$url=null){
    $a_num=10;
    $first=' 首页 ';
    $last=' 尾页 ';
    $pre=' 上页 ';
    $next=' 下页 ';
    $a_num=$a_num%2==0?$a_num+1:$a_num;
    if(!$url){
        $url=preg_replace("/&?{$pkey}=[^&]{0,}/", '',request_uri());
        $url=strpos($url, '?')===FALSE?$url.'?'.$pkey.'={page}':$url.'&'.$pkey.'={page}';
    }
    $pages=ceil($total/$pagesize);
    $curpage=httpInt($pkey,false,1);
    $curpage=$curpage>$pages||$curpage<=0?1:$curpage;#当前页超范围置为1
    $body=&#39;&#39;;$prefix=&#39;&#39;;$subfix=&#39;&#39;;
    $start=$curpage-($a_num-1)/2;#开始页
    $end=$curpage+($a_num-1)/2;  #结束页
    $start=$start<=0?1:$start;   #开始页超范围修正
    $end=$end>$pages?$pages:$end;#结束页超范围修正
    if($pages>=$a_num){#总页数大于显示页数
        if($curpage<=($a_num-1)/2){$end=$a_num;}//当前页在左半边补右边
        if($end-$curpage<=($a_num-1)/2){$start-=5-($end-$curpage);}//当前页在右半边补左边
    }
    for($i=$start;$i<=$end;$i++){
         if($i==$curpage){
             $body.=&#39;<b>&#39;.$i.&#39;</b>&#39;;
         }else{
             $body.=&#39;<a href="&#39;.str_replace(&#39;{page}&#39;,$i,$url).&#39;"> &#39;.$i.&#39; </a>&#39;;
         }
    }
    $prefix=($curpage==1?&#39;&#39;:&#39;<a href="&#39;.str_replace(&#39;{page}&#39;,1,$url).&#39;">&#39;.$first.&#39;</a><a href="&#39;.str_replace(&#39;{page}&#39;,$curpage-1,$url).&#39;">&#39;.$pre.&#39;</a>&#39;);
    $subfix=($curpage==$pages?&#39;&#39;:&#39;<a href="&#39;.str_replace(&#39;{page}&#39;,$curpage+1,$url).&#39;">&#39;.$next.&#39;</a><a href="&#39;.str_replace(&#39;{page}&#39;,$pages,$url).&#39;">&#39;.$last.&#39;</a>&#39;);
    $info=" 第{$curpage}/{$pages}页 ";
    $go=&#39;<script>function ekup(){if(event.keyCode==13){clkyup();}}function clkyup(){if(!/\d+/.test(document.getElementById(\&#39;gsd09fhas9d\&#39;).value)){alert(\&#39;请输入页码!\&#39;);return;};location=\&#39;&#39;.$url.&#39;\&#39;.replace(/\\{page\\}/,document.getElementById(\&#39;gsd09fhas9d\&#39;).value);}</script><input onkeyup="ekup()" type="text" id="gsd09fhas9d" style="width:40px;vertical-align:text-baseline;padding:0 2px;font-size:10px;border:1px solid gray;"/> <span id="gsd09fhas9daa" onclick="clkyup();" style="cursor:pointer;text-decoration:underline;">转到</span>&#39;;
    return $prefix.$body.$subfix.$info.$go;
}
/**
 * 说明:获取 _SERVER[&#39;REQUEST_URI&#39;] 值的通用解决方案
 */
function request_uri()
{
    if (isset($_SERVER[&#39;REQUEST_URI&#39;]))
    {
        $uri = $_SERVER[&#39;REQUEST_URI&#39;];
    }
    else
    {
        if (isset($_SERVER[&#39;argv&#39;]))
        {
            $uri = $_SERVER[&#39;PHP_SELF&#39;] .&#39;?&#39;. $_SERVER[&#39;argv&#39;][0];
        }
        else
        {
            $uri = $_SERVER[&#39;PHP_SELF&#39;] .&#39;?&#39;. $_SERVER[&#39;QUERY_STRING&#39;];
        }
    }
    return $uri;
}
/**
  * 获取HTTP传递的整数
  * @param string $key 参数名称
  * @param bool $ispost 采取POST传递方式,默认为真http://blog.ddian.cn
  * @return 整数,非法时默认为 $default
  */
 function httpInt($key, $ispost=true,$default=0) {
     if ($ispost) {
         if (isset($_POST[$key])) {
             if (empty($_POST[$key])) {
                 return $default;
             } else {
                 $val = trim($_POST[$key]);
                 if (preg_match("/^\-?\d+$/", $val)) return intval($val);
                 else return $default;
             }
         } else {
             return $default;
         }
     } else {
         if (isset($_GET[$key])) {
             if (empty($_GET[$key])) {
                 return $default;
             } else {
                 $val = trim($_GET[$key]);
                 if (preg_match("/^\-?\d+$/", $val)) {
                     return intval($val);
                 } else {
                     return $default;
                 }
             }
         } else {
             return $default;
         }
     }
 }
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Will R.E.P.O. Have Crossplay?
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Atom editor mac version download

Atom editor mac version download

The most popular open source editor