有时候缩略图很头疼，要么变形了，要么就是拉长了，今天就针对这个问题说个解决方法。
首先找到以下代码：
/includes/image.func.php目录下修改74行为以下代码：
function ImageResize($srcFile,$toW,$toH,$toFile="")
{
global $cfg_photo_type;
if($toFile=="")
{
$toFile = $srcFile;
}
$info = "";
$srcInfo = GetImageSize($srcFile,$info);
switch ($srcInfo[2])
{
case 1:
if(!$cfg_photo_type['gif'])
{
return false;
}
$im = imagecreatefromgif($srcFile);
break;
case 2:
if(!$cfg_photo_type['jpeg'])
{
return false;
}
$im = imagecreatefromjpeg($srcFile);
break;
case 3:
if(!$cfg_photo_type['png'])
{
return false;
}
$im = imagecreatefrompng($srcFile);
break;
case 6:
if(!$cfg_photo_type['bmp'])
{
return false;
}
$im = imagecreatefromwbmp($srcFile);
break;
}
$srcW=ImageSX($im);
$srcH=ImageSY($im);
if($srcW<=$toW && $srcH<=$toh neww="$toH" newh="$toW">= $toH)
{
$ftoW = $toW;
$ftoH = $newH;
}
else
{
$ftoW = $newW;
$ftoH = $toH; }
if($srcW>$toW||$srcH>$toH)
{
if(function_exists("imagecreatetruecolor"))
{
@$ni = imagecreatetruecolor($ftoW,$ftoH);
if($ni)
{
imagecopyresampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
else
{
$ni=imagecreate($ftoW,$ftoH);
imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
}
else
{
$ni=imagecreate($ftoW,$ftoH);
imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
//裁剪图片成标准缩略图
$new_imgx = imagecreatetruecolor($toW,$toH);
if($newH >= $toH)
{
imagecopyresampled($new_imgx,$ni,0,0,0,($newH - $toH)/2,$toW,$toH,$toW,$toH);
}
else
{
imagecopyresampled($new_imgx,$ni,0,0,($newW - $toW)/2,0,$toW,$toH,$toW,$toH);
}
switch ($srcInfo[2])
{
case 1:
imagegif($new_imgx,$toFile);
break;
case 2:
imagejpeg($new_imgx,$toFile,85);
break;
case 3:
imagepng($new_imgx,$toFile);
break;
case 6:
imagebmp($new_imgx,$toFile);
break;
default:
return false;
}
imagedestroy($new_imgx);
imagedestroy($ni);
}
imagedestroy($im);
return true;
}
覆盖即可。这样就可以了!
