php生成html静态页面的二种方法_PHP教程

$cache = new Cache();2、设置缓存时间和缓存目录

$cache = new Cache(60, '/any_other_path/');

$value = $cache->get('data_key');4、写入缓存

$value = $cache->put('data_key', 'data_value');完整实例：

$cache = new Cache();

//从缓存从读取键值 $key 的数据
$values = $cache->get($key);

//如果没有缓存数据
if ($values == false) {
//insert code here...
//写入键值 $key 的数据
$cache->put($key, $values);
} else {
//insert code here...
}
Cache.class.php

class Cache {
private $cache_path;//path for the cache
private $cache_expire;//seconds that the cache expires

//cache constructor, optional expiring time and cache path
public function Cache($exp_time=3600,$path="cache/"){
$this->cache_expire=$exp_time;
$this->cache_path=$path;
}

//returns the filename for the cache
private function fileName($key){
return $this->cache_path.md5($key);
}

//creates new cache files with the given data, $key== name of the cache, data the info/values to store
public function put($key, $data){
$values = serialize($data);
$filename = $this->fileName($key);
$file = fopen($filename, 'w');
if ($file){//able to create the file
fwrite($file, $values);
fclose($file);
}
else return false;
}

//returns cache for the given key
public function get($key){
$filename = $this->fileName($key);
if (!file_exists($filename) || !is_readable($filename)){//can't read the cache
return false;
}
if ( time() < (filemtime($filename) + $this->cache_expire) ) {//cache for the key not expired
$file = fopen($filename, "r");// read data file
if ($file){//able to open the file
$data = fread($file, filesize($filename));
fclose($file);
return unserialize($data);//return the values
}
else return false;
}
else return false;//was expired you need to create new
}
}
?>

$open = fopen("template.htm","r"); //打开模板文件
$content = fread($open,filesize("template.htm")); //读取模板文件内容
//print_r($content);
$content = str_replace("{title}","测试标题",$content);//替换
$content = str_replace("{contents}","测试内容",$content);

$newtemp = fopen("1.htm","w");//生成,用写入方式打开一个不存在（新）的页面
fwrite($newtemp,$content);//将刚刚替换的内容写入新文件中
fclose($newtemp);
echo "生成";

//假设从数据库中调的数据存放在二维数组$arr中
$arr = array(array("新闻标题一","新闻内容一"),array("新闻标题二","新闻内容二"));

foreach($arr as $key=>$value){
$title = $value[0];
$contents = $value[1];
//echo $title.''.$contents.'';
$path = $key.'.html';
$open = fopen("template.htm","r"); //打开模板文件
$handle = fread($open,filesize("template.htm")); //读取模板文件内容

$content = str_replace("{title}",$title,$handle);//替换
$content = str_replace("{contents}",$contents,$handle);

$newtemp = fopen($path,"w");//用写入方式打开一个不存在（新）的页面
fwrite($newtemp,$content);//将刚刚替换的内容写入新文件中
fclose($newtemp);
echo "生成";
}