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
陳述
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