清华大佬耗费三个月吐血整理的几百G的资源，免费分享！....>>>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | define('ROOT','D:/Program Files/www/test/');class Gd_Thumbnail_Tool{protected static $image_w; //图像的宽protected static $image_h; //图像的高protected static $image_ext; //图像的后缀//缩略图方法(参1要处理的图,参2处理后的宽,参3处理后的高)public static function mk_Thumb($image,$width=160,$height=160){//对中文进行转码处理$image=iconv('UTF-8','GB2312',$image);//获取图片信息self::image_Info($image);//验证是否获取到信息if( empty(self::$image_w) || empty(self::$image_h) || empty(self::$image_ext) ){return false;}//判断图片的大小是否需要进行等比例缩略if(self::$image_w<=$width && self::$image_h<=$height){$yes=false;}$yes=true;//按比例缩略if($yes){if( (self::$image_w<=self::$image_h) && (self::$image_h>$height) ){//缩略后宽$n=$height*(self::$image_w/self::$image_h);$small_w=round($n);//缩略后高$small_h=$height;}if( (self::$image_w>=self::$image_h) && (self::$image_w>$width) ){//缩略后宽$small_w=$width;//缩略后高$n=$width*(self::$image_h/self::$image_w);$small_h=round($n);}}//以原图做画布$a='imagecreatefrom'.self::$image_ext;$original=$a($image);//创建小画布$litter=imagecreatetruecolor($width,$height);//把大图缩略放入画布$x=($width-$small_w)/2;$y=($height-$small_h)/2;if(!$rs=imagecopyresampled($litter,$original,$x,$y,0,0,$small_w,$small_h,self::$image_w,self::$image_h)){return false;}//保存路径$path=self::image_Dir().self::rand_Name().'.'.self::$image_ext;//保存图片$keep='image'.self::$image_ext;$keep($litter,$path);//关闭图片imagedestroy($original);imagedestroy($litter);//返回路径return $path=strtr($path,array(ROOT=>''));}//获取图片信息方法protected static function image_Info($image){if($info=getimagesize($image)){//图像的宽self::$image_w=$info[0];//图像的高self::$image_h=$info[1];//图像的后缀$ext=image_type_to_extension($info[2]);$ext=ltrim($ext,'.');self::$image_ext=$ext;}}//生成路径protected static function image_Dir(){$dir=ROOT.'Data/images/'.date('Y/m/d/',time());if(!is_dir($dir)){mkdir($dir,0777,true);}return $dir;}//随机文件名protected static function rand_Name(){$name=str_shuffle('1234567890qwertyuiopasdfghjklmnbvcxz');$name=substr($name,0,7);return $name=$name.'_smal';}}//测试//echo Gd_Thumbnail_Tool::mk_Thumb('啊.jpg');//返回效果:Data/images/2013/02/01/ei3ufpr_smal.jpeg?> |