Heim >Backend-Entwicklung >PHP-Tutorial >文件缓存，php文件缓存_PHP教程

文件缓存，php文件缓存_PHP教程

WBOYOriginal: 2016-07-12 08:57:191230Durchsuche

文件缓存，php文件缓存

不多说，看代码

Head.php

<?<span>php
define(</span><span>'</span><span>CACHE_EXPIRE</span><span>'</span>,<span>1800</span><span>);  //设置过期时间
define(</span><span>'</span><span>CACHE_PATH</span><span>'</span>,$_SERVER[<span>'</span><span>DOCUMENT_ROOT</span><span>'</span>].<span>'</span><span>/cache/</span><span>'</span><span>); //设置缓存目录
define(</span><span>'</span><span>REFRESH_EXPIRE</span><span>'</span>,<span>10</span><span>);  
is_dir(CACHE_PATH) or mkdir(CACHE_PATH,</span><span>0777</span><span>);
<br />//该方法是获得用户的刷新次数，如果用户连续两次刷新，那么就显示最新内容
function refreshTimes(){
    $currentUrl</span>=<span>'</span><span>http://</span><span>'</span>.$_SERVER[<span>"</span><span>HTTP_HOST</span><span>"</span>].$_SERVER[<span>'</span><span>REQUEST_URI</span><span>'</span><span>];
    </span><span>if</span>(isset($_COOKIE[<span>'</span><span>refreshTimes</span><span>'</span><span>])){
        $cookArray</span>=explode(<span>"</span><span>\t</span><span>"</span>,$_COOKIE[<span>'</span><span>refreshTimes</span><span>'</span><span>]);
        </span><span>if</span>(isset($cookArray[<span>1</span>]) and $_SERVER[<span>'</span><span>REQUEST_TIME</span><span>'</span>] - (<span>int</span>)$cookArray[<span>1</span>] < REFRESH_EXPIRE and isset($cookArray[<span>0</span>]) and $cookArray[<span>0</span>] ==<span> $currentUrl){
            setcookie(</span><span>'</span><span>refreshTimes</span><span>'</span>,$currentUrl.<span>"</span><span>\t</span><span>"</span>.$_SERVER[<span>'</span><span>REQUEST_TIME</span><span>'</span>].<span>"</span><span>\t</span><span>"</span>.(<span>string</span>)((<span>int</span>)$cookArray[<span>2</span>]+<span>1</span>),<span>0</span>,<span>'</span><span>/</span><span>'</span><span>);
            </span><span>return</span> (<span>int</span>)$cookArray[<span>2</span><span>];
        }</span><span>else</span><span>{
            setcookie(</span><span>'</span><span>refreshTimes</span><span>'</span>,$currentUrl.<span>"</span><span>\t</span><span>"</span>.$_SERVER[<span>'</span><span>REQUEST_TIME</span><span>'</span>].<span>"</span><span>\t1</span><span>"</span>,<span>0</span>,<span>'</span><span>/</span><span>'</span><span>);
        </span><span>return</span> <span>0</span><span>;
        }
    }</span><span>else</span><span>{
        setcookie(</span><span>'</span><span>refreshTimes</span><span>'</span>,$currentUrl.<span>"</span><span>\t</span><span>"</span>.$_SERVER[<span>'</span><span>REQUEST_TIME</span><span>'</span>].<span>"</span><span>\t1</span><span>"</span>,<span>0</span>,<span>'</span><span>/</span><span>'</span><span>);
        </span><span>return</span> <span>0</span><span>;
    }
}
 
$key </span>= md5($_SERVER[<span>'</span><span>REQUEST_URI</span><span>'</span><span>]);
$path </span>=<span> CACHE_PATH.$key;

</span><span>if</span><span>(is_file($path)
 and filemtime($path)</span>+CACHE_EXPIRE > $_SERVER[<span>'</span><span>REQUEST_TIME</span><span>'</span><span>]
 and refreshTimes() </span>== <span>0</span><span>
 ){
    readfile($path);
    exit();
}

ob_start();
</span>?>

foot.php

<?<span>php

$html </span>=<span> ob_get_contents();
ob_clean();

file_put_contents($path,$html);

echo $html;

</span>?>

test.php

<?<span>php
include </span><span>'</span><span>head.php</span><span>'</span><span>;

$title </span>= <span>"</span><span>Hello world~</span><span>"</span><span>;
</span>?>
<!DOCTYPE html PUBLIC <span>"</span><span>-//W3C//DTD XHTML 1.0 Transitional//EN</span><span>"</span> <span>"</span><span>http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd</span><span>"</span>>
<html xmlns=<span>"</span><span>http://www.w3.org/1999/xhtml</span><span>"</span>>
<head>
<meta http-equiv=<span>"</span><span>Content-Type</span><span>"</span> content=<span>"</span><span>text/html; charset=gb2312</span><span>"</span> />
<title><?php echo $title?></title>
</head>

<body>
<?<span>php
echo </span><span>"</span><span>是大方大方</span><span>"</span><span>;
</span>?>
</body>
</html>
<?<span>php
include </span><span>'</span><span>foot.php</span><span>'</span><span>;
</span>?>

//其他看到的很全的php文件缓存

看http://www.cnblogs.com/coolid/archive/2012/09/14/2684373.html 链接

Stellungnahme：

Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn

Vorheriger Artikel：Laravel5中集成Jasig cas统一认证系统，laravel5jasig_PHP教程Nächster Artikel：PHP获取指定指定月份的天数，php获取月份天数_PHP教程

In Verbindung stehende Artikel

Mehr sehen