php生成静态html文件原理

php生成静态html文件的好处相信做过网站的人都知道，它能大大提高服务器的负载能力，下面就来看看php生成静态html文件原理：

这个例子的作用就是将index.php转化成index.html,需要注意的是目录的权限，还有待转化的文件不能有ob_start()和ob_end_clean()。

下面提供一个php生成静态html文件类：

fileName = $fileName;
   $this->mod = "wb";
   $this->handle = false;

   $this->Templet = "";
   $this->DataSource = array();
   $this->Dir = "";
   }

   // 绑定数据源，参数为一数组
   function BindData($arr)
   {
   $this->DataSource = $arr;
   }

   // 设置文件存放路径
   function SetDir($dir)
   {
   $this->Dir = $dir;
   }
   function SetFileName($fileName)
   {
   return $this->fileName = $fileName;
   }

   function GetMod()
   {
   return $this->mod;
   }
   function SetMod($mod)
   {
   return $this->mod = $mod;
   }
   function Open()
   {
   if (substr($this->fileName, 0, 1) == "/")
   $this->fileName = $_SERVER['DOCUMENT_ROOT'] . $this->fileName;
   if ($this->handle = fopen($this->fileName, $this->mod))
   return $this->handle;
   else
   return false;
   }
   function Close()
   {
   return fclose($this->handle);
   }
   function Write($content)
   {
   return fwrite($this->handle, $content);
   }
   function MkDir($pathname)
   {
   $currentPath = "";
   str_replace("\\", "/", $pathname);
   $pathArr = split("/", $pathname);
   if ($pathArr[0] == "") { //使用绝对路径
   $currentPath = $_SERVER['DOCUMENT_ROOT'];
   } else {
   $currentPath = $_SERVER['DOCUMENT_ROOT'] . dirname($_SERVER['PHP_SELF']);
   }
   for ($i = 0; $i Templet;
   foreach ($this->DataSource as $key => $value) {
   $tmp = str_replace("  ", $value, $tmp);
   }
   $this->MkDir(dirname($this->fileName));
   $this->Open();
   $this->Write($tmp);
   $this->Close();
   }
}

function CreateShtml() {
   ob_start("callback_CteateShtml");
}

function callback_CteateShtml($buffer) {
   $page = intval(@$_REQUEST["page"]);
   $shtml = new Shtml();
   $shtml->SetFileName($_SERVER['DOCUMENT_ROOT'] . dirname($_SERVER['PHP_SELF']) . "/" . basename($_SERVER['PHP_SELF'], ".php") . ($page == 0 ? "" : "_" . strval($page)) . ".html");
   $shtml->Templet = $buffer;
   $shtml->Create();
   return $buffer;
}
?>