album = new album;
$album->setdir('./album/');
$album->savephoto( $_FILES['file']['tmp_name'] , $_FILES['file']['type'] );
引用:
class album{
#default size
var $limit = array('w'=>80,'h'=>80);
var $q=80;
function setlimit($pixelw,$pixelh){ $this->limit = array('w'=>$pixelw,'h'=>$pixelh); }
function setquality($num){ $this->q = $num;}
#圖片的目錄
function setdir($dir){
$this->al_dir = $dir;
$this->als_dir = $this->al_dir . 'thumbs/';
if( !file_exists($this->al_dir) )
mkdir($this->al_dir);
if( !file_exists($this->als_dir) )
mkdir($this->als_dir);
}
function mk_rname($file_type){
#產生檔案名稱
$name = uniqid("");
switch( $file_type )
{
case 'image/pjpeg':
$name .= '.jpg';
break;
case 'image/gif':
$name .= '.gif';
break;
case 'image/png':
$name .= '.png';
break;
default:
echo '不正確的檔案格式:'.$file_type;
echo '
允許的檔案格式: jpeg , gif ,png';
exit();
return 0;
break;
}
return $name;
}
function savephoto( $file_tmpname, $file_type ){
#確認檔案上傳
if( !is_uploaded_file( $file_tmpname ) )
return false;
###建立檔案
###############################
#設定檔名
$new_name = $this->mk_rname( $file_type );
#重抓檔名
while( file_exists($this->al_dir.$new_name) ){ $new_name=$this->mk_rname( $file_type ); }
echo '新檔名:'.$new_name.'
';
if( !copy( $file_tmpname , $this->al_dir.$new_name) )
return false;
###建立縮圖
###############################
#從檔案建立畫布
switch( $file_type ){
case 'image/pjpeg':
$im = ImageCreateFromJPEG ( $file_tmpname ) or Die("不是正確的JPG檔");
break;
case 'image/gif':
$im = ImageCreateFromGif ( $file_tmpname ) or Die("不是正確的gif檔");
break;
case 'image/png':
$im = ImageCreateFromPng ( $file_tmpname ) or Die("不是正確的png檔");
break;
default:
return 0;
break;
}
$src_h = ImageSY($im );
$src_w = ImageSX($im );
$dst_h = $src_h;
$dst_w = $src_w;
#定義縮小值
if($src_h>$this->limit['h'] OR $src_w>$this->limit['w']){
if($src_h > $src_w)
$rate = $src_h / $this->limit['h'];
else
$rate = $src_w / $this->limit['w'];
$dst_h = $src_h / $rate;
$dst_w = $src_w / $rate;
}
#建立新畫布
$im2= ImageCreateTrueColor( $dst_w, $dst_h);
imagecopyresized ($im2, $im, 0,0, 0,0, $dst_w, $dst_h , $src_w, $src_h);
switch( $file_type ){
case 'image/pjpeg':
ImageJPEG($im2,$this->als_dir.$new_name, $this->q );
break;
case 'image/gif':
ImageGIF($im2,$this->als_dir.$new_name);
break;
case 'image/png':
ImagePNG($im2,$this->als_dir.$new_name);
break;
default:
return false;
break;
}
#刪除暫存檔
unlink( $file_tmpname );
#傳回檔案名稱
return $new_name;
}
function delphoto($filename){
if(unlink( $this->al_dir.$filename) AND unlink($this->als_dir.$filename))
return true;
else
return false;
}
#Class End
}
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