织梦图集 上传图片小于设定尺寸 缩略图生成失败的解决办法

织梦图集中，上传的图片像素宽高小于系统设置定的这个尺寸： 

较小的这些图片就会无法生成缩略图，导致图集在网页上缩略图显示X叉号，这应该是织梦DEDEcms的一个历史遗漏bug，可用下面方法修复。

/include/helpers/，这个文件中搜索，下面的代码：

01 if($srcW<=$toW && $srcH<=$toH ) return TRUE; 02 $toWH=$toW/$toH; 03 $srcWH=$srcW/$srcH; 04 if($toWH<=$srcWH) 05 { 06 $ftoW=$toW; 07 $ftoH=$ftoW*($srcH/$srcW); 08 } 09 else 10 { 11 $ftoH=$toH; 12 $ftoW=$ftoH*($srcW/$srcH); 13 }  

然后用下面的大片代码替换：

01 $ftoW=$toH; 02 [size=; font-size: inherit,inherit] $ftoH=$toH; 03 /// 04 [size=; font-size: inherit,inherit] if( $srcH<=$toH && $srcW<=$toW ) 05 [size=; font-size: inherit,inherit] { 06 [size=; font-size: inherit,inherit] $ftoW=$srcW; 07 [size=; font-size: inherit,inherit] $ftoH=$srcH; 08 [size=; font-size: inherit,inherit] if(function_exists("imagecreatetruecolor")) 09 [size=; font-size: inherit,inherit] { 10 [size=; font-size: inherit,inherit] @$ni = imagecreatetruecolor($ftoW,$ftoH); 11 [size=; font-size: inherit,inherit] if($ni) 12 [size=; font-size: inherit,inherit] { 13 [size=; font-size: inherit,inherit] imagecopyresampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH); 14 [size=; font-size: inherit,inherit] } 15 [size=; font-size: inherit,inherit] else 16 [size=; font-size: inherit,inherit] { 17 [size=; font-size: inherit,inherit] $ni=imagecreate($ftoW,$ftoH); 18 [size=; font-size: inherit,inherit] imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH); 19 [size=; font-size: inherit,inherit] } 20 [size=; font-size: inherit,inherit] } 21 [size=; font-size: inherit,inherit] else 22 [size=; font-size: inherit,inherit] { 23 [size=; font-size: inherit,inherit] $ni=imagecreate($ftoW,$ftoH); 24 [size=; font-size: inherit,inherit] imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH); 25 [size=; font-size: inherit,inherit] } 26 [size=; font-size: inherit,inherit] switch ($srcInfo[2]) 27 [size=; font-size: inherit,inherit] { 28 [size=; font-size: inherit,inherit] case 1: 29 [size=; font-size: inherit,inherit] imagegif($ni,$toFile); 30 [size=; font-size: inherit,inherit] break; 31 [size=; font-size: inherit,inherit] case 2: 32 [size=; font-size: inherit,inherit] imagejpeg($ni,$toFile,100); 33 [size=; font-size: inherit,inherit] break; 34 [size=; font-size: inherit,inherit] case 3: 35 [size=; font-size: inherit,inherit] imagepng($ni,$toFile); 36 [size=; font-size: inherit,inherit] break; 37 [size=; font-size: inherit,inherit] case 6: 38 [size=; font-size: inherit,inherit] imagebmp($ni,$toFile); 39 [size=; font-size: inherit,inherit] break; 40 [size=; font-size: inherit,inherit] default: 41 [size=; font-size: inherit,inherit] return false; 42 [size=; font-size: inherit,inherit] } 43 [size=; font-size: inherit,inherit] imagedestroy($ni); 44 [size=; font-size: inherit,inherit] } /// 45 46 $toWH=$toW/$toH; 47 $srcWH=$srcW/$srcH; 48 if($toWH<=$srcWH) 49 { 50 $ftoW=$toW; 51 $ftoH=$ftoW*($srcH/$srcW); 52 } 53 else 54 { 55 $ftoH=$toH; 56 $ftoW=$ftoH*($srcW/$srcH); 57 }  

这样织梦上传的图，就不会显示x号了。