PHPCMS缩略图不清楚怎么办

PHPCMS如何解决缩略图不清楚，首先在phpcms下面的libs中找到classes目录并打开；然后找到“image.class.php”这个文件并打开；最后搜索到调用“$imagefun()”函数的地方并传第三个参数为90即可。
搜索到下这个函数

function thumb($image, $filename = '', $maxwidth = 200, $maxheight = 200, $suffix='', $autocut = 0, $ftp = 0) {
if(!$this->thumb_enable || !$this->check($image)) return false;
$info  = image::info($image);
if($info === false) return false;
$srcwidth  = $info['width'];
$srcheight = $info['height'];
$pathinfo = pathinfo($image);
$type =  $pathinfo['extension'];
if(!$type) $type = $info['type'];
$type = strtolower($type);
unset($info);
$creat_arr = $this->getpercent($srcwidth,$srcheight,$maxwidth,$maxheight);
$createwidth = $width = $creat_arr['w'];
$createheight = $height = $creat_arr['h'];
$psrc_x = $psrc_y = 0;
if($autocut && $maxwidth > 0 && $maxheight > 0) {
if($maxwidth/$maxheight=$height) {
$width = $maxheight/$height*$width;
$height = $maxheight;
}elseif($maxwidth/$maxheight>$srcwidth/$srcheight && $maxwidth>=$width) {
$height = $maxwidth/$width*$height;
$width = $maxwidth;
}
$createwidth = $maxwidth;
$createheight = $maxheight;
}
$createfun = 'imagecreatefrom'.($type=='jpg' ? 'jpeg' : $type);
$srcimg = $createfun($image);
if($type != 'gif' && function_exists('imagecreatetruecolor'))
$thumbimg = imagecreatetruecolor($createwidth, $createheight);
else
$thumbimg = imagecreate($width, $height);
if(function_exists('imagecopyresampled'))
imagecopyresampled($thumbimg, $srcimg, 0, 0, $psrc_x, $psrc_y, $width, $height, $srcwidth, $srcheight);
else
imagecopyresized($thumbimg, $srcimg, 0, 0, $psrc_x, $psrc_y, $width, $height,  $srcwidth, $srcheight);
if($type=='gif' || $type=='png') {
$background_color  =  imagecolorallocate($thumbimg,  0, 255, 0);  //  指派一个绿色
imagecolortransparent($thumbimg, $background_color);  //  设置为透明色，若注释掉该行则输出绿色的图
}
if($type=='jpg' || $type=='jpeg') imageinterlace($thumbimg, $this->interlace);
$imagefun = 'image'.($type=='jpg' ? 'jpeg' : $type);
if(empty($filename)) $filename  = substr($image, 0, strrpos($image, '.')).$suffix.'.'.$type;
$imagefun($thumbimg, $filename);
imagedestroy($thumbimg);
imagedestroy($srcimg);
if($ftp) {
@unlink($image);
}
return $filename;
}

然后找到

if($type=='jpg' || $type=='jpeg') imageinterlace($thumbimg, $this->interlace);
$imagefun = 'image'.($type=='jpg' ? 'jpeg' : $type);
if(empty($filename)) $filename  = substr($image, 0, strrpos($image, '.')).$suffix.'.'.$type;
$imagefun($thumbimg, $filename);
imagedestroy($thumbimg);
imagedestroy($srcimg);

改为

if($type=='jpg' || $type=='jpeg') imageinterlace($thumbimg, $this->interlace);
$imagefun = 'image'.($type=='jpg' ? 'jpeg' : $type);
if(empty($filename)) $filename  = substr($image, 0, strrpos($image, '.')).$suffix.'.'.$type;
$imagefun($thumbimg, $filename, 90);
imagedestroy($thumbimg);
imagedestroy($srcimg);

即可解决问题

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