<?

function cache_write($dir,$filename,$content) {

	$dir_target = "cache/";
	
	foreach($dir as $dir_once) {
		$dir_target .= $dir_once."/";
		if(!is_dir($dir_target))
			mkdir($dir_target);
	}
	//print $dir_target.$filename;
	
	@unlink($dir_target.$filename);
	
	$handle = fopen($dir_target.$filename,"x+");
	fwrite($handle,$content);
	fclose($handle);

}
function cache_check($dir,$filename,$expire) {

	$dir_target = "cache/";

	foreach($dir as $dir_once) {
		$dir_target .= $dir_once."/";
	}

	if (file_exists($dir_target.$filename))
		if((time()-filemtime($dir_target.$filename))<$expire) {

			return true;
			}
	return false;


}

function cache_read($dir,$filename) {

	$dir_target = "cache/";

	foreach($dir as $dir_once) {
		$dir_target .= $dir_once."/";
	}
	if(filesize($dir_target.$filename)>0) {
		$handle = fopen($dir_target.$filename, "r");
		if(!($handle))
			return false;
		$contents = fread($handle, filesize($dir_target.$filename));
		fclose($handle);
	
		return $contents;
	}
	else
		return "";

}

function cache_delete($dir,$filename) {

	$dir_target = "cache/";

	foreach($dir as $dir_once) {
		$dir_target .= $dir_once."/";
	}
	
	if(file_exists($dir_target.$filename)) {
		unlink($dir_target.$filename);
	}
	else
		return false;
}

/*function cache_delete_by_action($aid) {

	$firms = array();
	$dates = array();

	$result = query("SELECT * FROM `shedule` WHERE `aid`='".$aid."';");
	
	if(mysql_num_rows($result)>0)
		while($data = mysql_fetch_array($result)) {
			if(array_search($data['fid'],$firms))
				$firms[] = $data['fid'];
				
			if(date("G",strtotime($data['datetime']))<=TIME_WORK)
				$day = date("d-m-Y",strtotime($data['datetime'])-43200); // it's previous day
			else
				$day = date("d-m-Y",strtotime($data['datetime']));
			
			if(array_search($day,$dates))
				$dates[] = $day;
		}
		
	foreach($dates as $day) {
		cache_delete_by_date($day);
	}
	foreach()
}

function cache_delete_by_firm() {
}

function cache_delete_by_date() {
}*/


?>