How PHPCMS solves the problem of thumbnails is not clear

How does PHPCMS solve the problem of unclear thumbnails

First find the classes directory in libs under phpcms and open it; then find "image.class .php" file and open it; finally search for the place where the "$imagefun()" function is called and pass the third parameter as 90.

Search for this function

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/$maxheight<$srcwidth/$srcheight && $maxheight>=$height) {
                                $width = $maxheight/$height*$width;
                                $height = $maxheight;
                        }elseif($maxwidth/$maxheight>$srcwidth/$srcheight && $maxwidth>=$width) {
                                $height = $maxwidth/$width*$height;
                                $width = $maxwidth;
                        }
                        $createwidth = $maxwidth;
                        $createheight = $maxheight;
                }
                $createfun = &#39;imagecreatefrom&#39;.($type==&#39;jpg&#39; ? &#39;jpeg&#39; : $type);
                $srcimg = $createfun($image);
                if($type != &#39;gif&#39; && function_exists(&#39;imagecreatetruecolor&#39;))
                        $thumbimg = imagecreatetruecolor($createwidth, $createheight); 
                else
                        $thumbimg = imagecreate($width, $height); 

                if(function_exists(&#39;imagecopyresampled&#39;))
                        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==&#39;gif&#39; || $type==&#39;png&#39;) {
                        $background_color  =  imagecolorallocate($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==&#39;jpg&#39; || $type==&#39;jpeg&#39;) imageinterlace($thumbimg, $this->interlace);
                $imagefun = &#39;image&#39;.($type==&#39;jpg&#39; ? &#39;jpeg&#39; : $type);
                if(empty($filename)) $filename  = substr($image, 0, strrpos($image, &#39;.&#39;)).$suffix.&#39;.&#39;.$type;
                $imagefun($thumbimg, $filename);
                imagedestroy($thumbimg);
                imagedestroy($srcimg);
                if($ftp) {
                        @unlink($image);
                }
                return $filename;
    }

and then find

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);

and change it to

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);

to solve the problem

Recommended Tutorial: "PHP Tutorial"

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