<?php?//test.php
	require?"image.class.php";
	$src?=?"001.jpg";
	$image?=?new?Image($src);
	
	//壓縮圖片
	$image->thumb(300,150);
	$image->show();
?>

<?php?//image.class.php
	class?Image{
		/**
		?*內(nèi)存中的圖片
		?*/
		private?$image;
		
		/**
		?*圖片的基本信息
		?*/
		private?$info;
		
		/**
		?*打開一張圖片，讀取到內(nèi)存中
		?*/
		public?function?__construct($src)
		{
			$info?=?getimagesize($src);
			$this->info?=?array(
				'width'=>$info[0],
				'height'=>$info[1],
				'type'=>image_type_to_extension($info[2],false),
				'mime'=>$info['mime']
			);
			$fun?=?"imagecreatefrom{$this->info['type']}";
			$this->image?=?$fun($src);
		}
		
		/**
		?*操作圖片（壓縮）
		?*/
		?public?function?thumb($width,$height)
	????{
			$image_thumb?=?imagecreatetruecolor($width,$height);
			imagecopyresampled($image_thumb,$this->image,0,0,0,0,$width,$height,$this->info['width'],$this->info['height']);
			imagedestroy($this->image);
			$this->image=$image_thumb;
		}
		
		/**
		?*操作圖片（添加文字水印）
		?*/
		?public?function?fontMark($content,$font_url,$size,$color,$local,$angle)
		{
			$col?=?imagecolorallocatealpha($this->image,$color[0],$color[1],$color[3],$color[4]);
			imagettftext($this->image,$size,$angle,$local['x'],$local['y'],$col,$font_url,$content);
		}
		
		/**
		?*操作圖片（添加圖片水?。?		?*/
		?public?function?imageMark($source,$local,$alpha)
		{
			$info_mark?=?getimagesize($source);
			$type_mark?=?image_type_to_extension($info_mark[2],false);
			$fun_mark?=?"imagecreatefrom{$type_mark}";
			$image_mark?=?$fun_mark($source);
			imagecopymerge($this->image,$image_mark,$local['x'],$local['y'],0,0,$info_mark[0],$info_mark[1],$alpha);
			imagedestroy($image_mark);
		}
		?
		/**
		?*在瀏覽器中輸出圖片
		?*/
		public?function?show()
		{
			ob_clean();//清空（擦掉）輸出緩沖區(qū)
			header("Content-type:".$this->info['mime']);
			$funs?=?"image{this->info['type']}";
			$funs($this->image);
		}
		
		/**
		?*把圖片保存在硬盤里
		?*/
		public?function?save($newname)
		{
			$funs?=?"image{$this->info['type']}";
			$funs($this->image,$newname.'.'.$this->info['type']);
		}
		
		/**
		?*銷毀圖片
		?*/
		public?function?__destruct()
		{
			imagedestroy($this->image);
		}
	}
?>

不過，又出現(xiàn)了新問題，就是圖片沒法正常顯示額，如下所示