<?phprequire_once './source/class/class_core.php';$discuz = & discuz_core::instance();$discuz->init();list($w,$h)=explode("x",$_G['gp_size']);$m=0;if($w==0&&$h==0){ $m=5;}elseif ($h==0){ $m=3;}elseif ($w==0){ $m=4;}/*$w=100;//宽度$h=75;//高度$m=0;//缩略图模式 //mode=0为固定宽高，画质裁切不变形 //mode=1为固定宽高，画质会拉伸变形 //mode=2为可变宽高，宽高不超过指定大小 //mode=3为固定宽度，高度随比例变化*/$nopic='./static/image/common/nophotosmall.gif';//缺省图片$aid=intval($_G['gp_aid']);$dir="data/aidpic/";$subdir=$dir."/{$w}x{$h}x{$m}/";$thumbfile=$subdir."/".$aid.".jpg";if(file_exists($thumbfile)){ header("location:{$thumbfile}"); die();}$tableid=substr($aid,-1,1);$attach=DB::fetch_first("SELECT a.tid,a.attachment,a.remoteFROM ".DB::table("forum_attachment_{$tableid}")." aWHERE a.`tid` ='$aid'AND a.`isimage`<>0order by a.aid asclimit 0,1");if($attach){ $attachurl=$attach['remote']?$_G['setting']['ftp']['attachurl']:$_G['setting']['attachurl']; $attachfile=$attachurl."/forum/".$attach['attachment']; if(!is_dir($dir)) @mkdir($dir); if(!is_dir($subdir)) @mkdir($subdir); dzthumb($attachfile,$thumbfile,$w,$h,$m); header("location:{$thumbfile}"); die();}else{ header("location:$nopic"); die();}function dzthumb($srcfile,$dstfile,$dstw,$dsth=0,$mode=0,$data=''){ $data=$data==''?@GetImageSize($srcfile):$data; if(!$data) return false; if($data[2]==2) $im=@ImageCreateFromJPEG($srcfile); elseif ($data[2]==1) $im=@ImageCreateFromGIF($srcfile); elseif($data[2]==3) $im=@ImageCreateFromPNG($srcfile); list($img_w, $img_h) = $data; if($dsth==0) $mode=3; if($mode==0){ $imgratio = $img_w / $img_h; $thumbratio = $dstw / $dsth; if($imgratio >= 1 && $imgratio >= $thumbratio || $imgratio < 1 && $imgratio > $thumbratio) { $cuty = $img_h; $cutx = $cuty * $thumbratio; } elseif($imgratio >= 1 && $imgratio <= $thumbratio || $imgratio < 1 && $imgratio < $thumbratio) { $cutx = $img_w; $cuty = $cutx / $thumbratio; } $cx = $cutx; $cy = $cuty; }elseif($mode==1){ $cx = $img_w; $cy = $img_h; }elseif ($mode==2){ $cx = $img_w; $cy = $img_h; $bit=$img_w/$img_h; if($dstw/$dsth>$bit){ $dstw=($img_w/$img_h)*$dsth; }else{ $dsth=($img_h/$img_w)*$dstw; } } elseif($mode==3){ $cx = $img_w; $cy = $img_h; $dsth=$dstw * $img_h / $img_w; } elseif ($mode==4){ $cx = $img_w; $cy = $img_h; $dstw=$dsth * $img_w / $img_h; } $ni=imagecreatetruecolor($dstw,$dsth); ImageCopyResampled($ni,$im,0,0,0,0,$dstw,$dsth, $cx, $cy); clearstatcache(); if($data[2]==2) ImageJPEG($ni,$dstfile,100); elseif($data[2]==1) ImageGif($ni,$dstfile); elseif($data[2]==3) ImagePNG($ni,$dstfile); return true;}?>