电脑娃

date_default_timezone_set('PRC'); //默认时区
 
echo "今天:",date("Y-m-d",time()),"<br>";
echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"<br>";
echo "昨天:",date("Y-m-d",strtotime("-1 day")), "<br>";
echo "明天:",date("Y-m-d",strtotime("+1 day")), "<br>";
echo "一周后:",date("Y-m-d",strtotime("+1 week")), "<br>";
echo "一周零两天四小时两秒后:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "<br>";
echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")), "<br>";
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>"

	define('WEB_ROOT', dirname(__FILE__));
	/*
	* image upload class
	* $maxsize int 允许上传的最大文件 单位：K
	* $file 上传的文件域 $_FILES['pic']
	* $errorlog true/false 是否记录上传错误日志
	* $Aextend 允许上传的后缀名
	* $path 上传文件保存的路径
	* $tpath 缩略图保存的路径
	* $twidth 缩略图的宽度
	* $theight 缩略图的高度
	* $thumb 是否生成缩略图
	* $newname 上传后文件的保存名
	* $thumbname 缩略文件名 完整路径
	* $picname 图片保存的完整路径
	* 例子：$up = new Upload($_FILES['pic']);
	*		$up->DoUpload();
	*/
	class Upload{
		private $maxsize;
		private $file;
		private $errorlog ;
		private $Aextend = array('jpg','gif','png');
		private $path;
		private $tpath;
		private $twidth;
		private $theight;
		private $thumb;
		private $newname;
		private $thumbname = '';
		private $picname;
		function __construct($file,$thumb = true,$twidth = 100,$theight = 100,$tpath = './thumb000000/',$path = './upload000000/',$maxsize = 10240000,$errorlog = true){
			$this->maxsize = $maxsize;
			$this->file = $file;
			$this->errorlog = $errorlog;
			$this->path = $path;
			$this->tpath = $tpath;
			$this->thumb = $thumb;
			$this->twidth = $twidth;
			$this->theight = $theight;
		}
 
		private function GetExtend(){
			$type = $this->file['type'];
			$extend = '';
			switch($type){
				case 'image/pjpeg' :
				case 'image/jpeg' :
					$extend = "jpg";
					break;
				case 'image/gif' :
					$extend = "gif";
					break;
				case 'image/png' :
					$extend = "png";
					break;
 
			}
			return $extend;
		}
		private function GetSize(){
			return $this->file['size']/1024;
		}
		private function Mkdirs($p){
			return mkdir($p,0777)&&file_put_contents($p.'/index.htm',' ');
		}
		private function GetNewName(){
			return $this->newname = 'duizhang_'.time().'.'.$this->GetExtend();
		}
		//private function GetThumbName(){
		//	return $this->thumbname = $this->tpath.'duizhang_'.time().'.'.$this->GetExtend();
		//}
		/*
		* 生成缩略图和原始图目录
		* 如原始图目录：./upload000000/2011/06/11/
		*/
		private function DoMkdirs(){
			$year = date('Y',time()+8*60*60);
			$month = date('m',time()+8*60*60);
			$day = date('d',time()+8*60*60);
			try{
				if(!is_dir($this->path)){
						if(!$this->Mkdirs($this->path)) throw new FileException('上传文件',2);
					}
 
				if(!is_dir($this->path.$year)){
					if(!$this->Mkdirs($this->path.$year)) throw new FileException('上传文件',2);
				}
				if(!is_dir($this->path.$year.'/'.$month)){
					if(!$this->Mkdirs($this->path.$year.'/'.$month)) throw new FileException('上传文件',2);
				}
				if(!is_dir($this->path.$year.'/'.$month.'/'.$day)){
					if(!$this->Mkdirs($this->path.$year.'/'.$month.'/'.$day)) throw new FileException('上传文件',2);
				}
				$this->path = $this->path.$year.'/'.$month.'/'.$day.'/';
 
 
				if($this->thumb === true){
					if(!is_dir($this->tpath)){
						if(!$this->Mkdirs($this->tpath)) throw new FileException('上传文件',2);
					}
					if(!is_dir($this->tpath.$year)){
						if(!$this->Mkdirs($this->tpath.$year)) throw new FileException('上传文件',2);
					}
					if(!is_dir($this->tpath.$year.'/'.$month)){
						if(!$this->Mkdirs($this->tpath.$year.'/'.$month)) throw new FileException('上传文件',2);
					}
					if(!is_dir($this->tpath.$year.'/'.$month.'/'.$day)){
						if(!$this->Mkdirs($this->tpath.$year.'/'.$month.'/'.$day)) throw new FileException('上传文件',2);
					}
					$this->tpath = $this->tpath.$year.'/'.$month.'/'.$day.'/';
				}
 
			}catch(FileException $e){
				$errormessage = $e->Getmessage().'---'.$e->GetDetail();
				echo $errormessage;
				if($this->errorlog){
					DoLog::Instance('errorupload');
					DoLog::WriteLog($errormessage);
				}
			}
 
		}
 
 
		//执行上传
		function DoUpload(){
			$this->DoMkdirs();
			try{
				if(!in_array($this->GetExtend(),$this->Aextend)) throw new FileException('上传文件',0);
				if($this->GetSize() > $this->maxsize || $this->GetSize()<=0) throw new FileException('上传文件',1);
				if(!is_writable($this->path)) throw new FileException('上传文件',7);
				if(!is_writable($this->tpath)) throw new FileException('上传文件',7);
				if(!move_uploaded_file($this->file['tmp_name'],$this->path.$this->GetNewName())) throw new FileException('上传文件',8);
				$this->picname = $this->path.$this->newname;
 
				if($this->thumb === true){
					if(!$this->ThumbImg($this->twidth,$this->theight,$this->path.$this->newname,$this->tpath.$this->newname,$this->GetExtend())) throw new FileException('上传文件',9);
					$this->thumbname = $this->tpath.$this->newname;
				}
 
			}catch(FileException $e){
				$errormessage = $e->Getmessage().'---'.$e->GetDetail();
				echo $errormessage;
				if($this->errorlog){
					DoLog::Instance('errorupload');
					DoLog::WriteLog($errormessage);
				}
			}
		}
 
		/**
		 * 
		 * 图片缩略方法
		 * @param int $twidth 图片宽度
		 * @param int 图片长度
		 * @param string $patch 原图片保存路径
		 * @param string $tpath 缩略图保存路径
		 * @param string $type 要缩略的图片的类型（后缀）
		 */
		private function ThumbImg($twidth,$theight,$patch,$tpath,$type){
			switch ($type)
			{
				case "jpg":
					$image2=imagecreatefromjpeg($patch);
					function outputimg($image,$path){imagejpeg($image,$path);};
					break;
				case "gif":
					$image2=imagecreatefromgif($patch);
					function outputimg($image,$path){imagegif($image,$path);};
					break;
				case "png":
					$image2=imagecreatefrompng($patch);
					function outputimg($image,$path){imagepng($image,$path);};
					break;
			}
 
			$image=imagecreatetruecolor($twidth, $theight);
			if($type=="png"){
				imagesavealpha($image2,true);//设置png透明alpha通道开启
				imagealphablending($image,false);//不合并alpha通道图层
				imagesavealpha($image,true);
			}
			$image2x=imagesx($image2);
			$image2y=imagesy($image2);
			imagecopyresampled($image, $image2, 0, 0, 0, 0, $twidth, $theight, $image2x, $image2y);
			outputimg($image,$tpath);
			imagedestroy($image2);
			imagedestroy($image);
			return true;
		}
 
 
		function PicName(){
			return $this->picname;
		}
 
		function ThumbName(){
			return $this->thumbname;
		}
	}
	//自定义文件异常处理类
	class FileException extends Exception{
		 function GetDetail(){
			switch($this->code){
				case 0:
					return $this->GetTime()."\t".'上传文件类型错误';
					break;
				case 1:
					return $this->GetTime()."\t".'上传文件大小超过限制';
					break;
				case 2:
					return $this->GetTime()."\t".'创建上传目录失败';
					break;
				case 3:
					return $this->GetTime()."\t".'创建日志记录目录失败';
					break;	
				case 4:
					return $this->GetTime()."\t".'创建日志文件失败';
					break;
				case 5:
					return $this->GetTime()."\t".'打开日志文件失败';
					break;
				case 6:
					return $this->GetTime()."\t".'写入日志文件失败';
					break;
				case 7:
					return $this->GetTime()."\t".'上传目录无写入权限';
					break;
				case 8:
					return $this->GetTime()."\t".'上传文件失败';
					break;
				case 9:
					return $this->GetTime()."\t".'缩略图生成失败';
					break;
				default:
					return $this->GetTime()."\t".'当前操作出现异常';
					break;		
			}
		}
 
		function GetTime(){
			return date('Y-m-d H:i:s',time()+8*60*60);
		}
 
	}
 
	///记录错误日志
	//如：上传文件错误日志存放在根目录下/log/errorupload/20110610.txt
	class DoLog{
		static private $dir = './log';
		static private $path;
		static private $message = '日志记录';
		private function __construct(){}
 
		/*
		*日志类 初始化方法
		*$type 记录日志的类型 如：上传错误日志 类型为 errorupload
		*/
		static public function Instance($type){
			if(!is_dir(self::$dir)) self::Mkdirs(self::$dir);
			if(!is_dir(self::$dir.'/'.$type)) self::Mkdirs(self::$dir.'/'.$type);
			self::$path = self::$dir.'/'.$type.'/'.date('Y-m-d',time()+8*60*60).'.txt';
			if(!file_exists(self::$path)) self::Touch();
 
		}
		/*创建日志目录*/
		static private function Mkdirs($d){
			try{
				if(!mkdir($d,0777)) throw new FileException(self::$message.'---'.$d,3);
			}catch(FileException $e){
				echo $e->Getmessage().'===='.$e->GetDetail();
			}
		}
		/*创建日志文件*/
		static private function Touch(){
			try{
				if(!touch(self::$path)) throw new FileException(self::$path,4);
			}catch(FileException $e){
				echo $e->Getmessage().'===='.$e->GetDetail();
			}
		}
		/*
		*讲错误日志写入文件
		*$m 错误日志信息
		*/
		static public function WriteLog($m){
			try{
				if(!$fp = fopen(self::$path,'a+')) throw new FileException(self::$path,5);
				if(!fwrite($fp,$m."\r\n")) throw new FileException(self::$path,6);
				fclose($fp);
			}catch(FileException $e){
				echo $e->Getmessage().'===='.$e->GetDetail();
			}
		}
	}

/*
* FTP class
* Author duizhang
* EXAMPLE:
* $ftp = new FTP('127.0.0.1','ftpuser','ftppass','/');
* $ftp->FtpMkdir('images'); mkdir images
* $ftp->FtpChdir('images'); change the current dir
* $ftp->FtpPut('remote.file.jpg','local.file.jpg',FTP_BINARY); Upload the file to FTP server
* */
class FTP{
	private $ftp_cid;
	private $func;
	private $ftphost;
	private $ftpuser;
	private $ftppass;
	private $port;
	private $timeout;
	private $pasv;
	private $ftppath;
	function __construct($ftphost,$ftpuser,$ftppass,$ftppath,$port = 21,$pasv = 0,$ftpssl = 0,$timout = 30){		
		@set_time_limit(0);
		$this->ftphost = $ftphost;
		$this->ftpuser = $ftpuser;
		$this->ftppass = $ftppass;
		$this->port = intval($port);
		$this->timeout = intval($timout);
		$this->pasv = $pasv;
		$this->ftppath = $ftppath;
		$this->func = $ftpssl && function_exists('ftp_ssl_connect') ? 'ftp_ssl_connect' : 'ftp_connect';
		try{
			if($this->func == 'ftp_connect' && !function_exists('ftp_connect')) throw new Exception('FTP not supported.');
		}catch (Exception $e){
			echo $e->getMessage();
		}
		$this->FtpLogin();
	}
	/*
	* ftplogin method
	* */
	private function FtpLogin(){
		$func = sprintf('%s',$this->func);
		try{
			if(!$this->ftp_cid = @$func($this->ftphost,$this->port,20)) throw new Exception('FTP connected failed.');
		}catch (Exception $e){
			echo $e->getMessage();
		}
 
		if($this->timeout && function_exists('ftp_set_option')) {
			@ftp_set_option($ftp_conn_id, FTP_TIMEOUT_SEC, $this->timeout);
		}
		try{
			if(!ftp_login($this->ftp_cid,$this->ftpuser,$this->ftppass)) throw new Exception('530 NOT LOGGED IN.');
 
		}catch(Exception $e){
			echo $e->getMessage();
		}
		if($this->pasv) @ftp_pasv($this->ftp_cid,$this->pasv);
		try{
			if(!$this->FtpChdir($this->ftppath)) throw new Exception('chdir'.$this->ftppath.' error.');
		}catch(Exception $e){
			echo $e->getMessage();
		}
		//return $this->cid;
	}
 
	/*
	* ftp mkdir
	* */
	function FtpMkdir($path){
		$path = $this->wipespecial($path);
		return @ftp_mkdir($this->ftp_cid,$path);
	}
	/*
	* ftp rmdir
	* */
	function FtpRmdir($path){
		$path = $this->wipespecial($path);
		return @ftp_rmdir($this->ftp_cid,$path);
	}
	/*
	* FTP put file
	* $remote_file remote file path
	* $local_file local file path
	* $mode FTP_ASCII/FTP_BINARY
	* */
	function FtpPut($remote_path,$local_path,$mode,$startpos = 0){
		$remote_path = $this->wipespecial($remote_path);
		$local_path = $this->wipespecial($local_path);
		try{
			if(!in_array($mode,array(FTP_ASCII,FTP_BINARY))) throw new Exception('FTP MODE IS ERROR');
		}catch (Exception $e){
			echo $e->getMessage();
		}
		//echo $remote_path;
		return ftp_put($this->ftp_cid,$remote_path,$local_path,$mode,$startpos);
	}
	/*
	* FTP DELETE THE REMOTE FILE
	* */
	function FtpDelete($path){
		$path = $this->wipespecial($path);
		return @ftp_delete($this->ftp_cid,$path);
	}
 
	/*
	* get the remote file size
	* */
	function FtpSize($path){
		$path = $this->wipespecial($path);
		return ftp_size($this->ftp_cid,$path);
	}
 
	/*
	* FTP CHDIR
	* */
	function FtpChdir($path){
		$path = $this->wipespecial($path);
		return ftp_chdir($this->ftp_cid,$path);
	}
 
	/*
	*FTP CHMOD
	* */
	function FtpChmod($path){
		$path = $this->wipespecial($path);
		return ftp_chmod($this->ftp_cid,0777,$path);
	}
	/*
	*
	* */
	private function wipespecial($str) {
		return str_replace(array( "\n", "\r", '..'), array('', '', ''), $str);
	}
	function __destruct(){
		ftp_close($this->ftp_cid);
	}
}