thinkphp生成缩略图

/**
* 图像的裁剪
* 依赖 composer require topthink/think-image
  1 等比例缩放;  2 缩放后填充;  3 居中裁剪;  4 左上角裁剪; 5右下角裁剪;  6 固定尺寸缩放; 
  路径必须/开头
*/
function thumb_img($path,$width = 300,$height = null,$type=3){
 if(substr($path,0,1)!=="/"){
    return $path;
 }
 $image = \think\Image::open(ROOT_PATH."public".$path);
 $imgWidth = $image->width();
 $imgHeight = $image->height();
 $scale=$imgWidth/$imgHeight;
 if(!$height){
    $height=intval($width/$scale);
 }
 $arr=explode(".",$path);
 $ext=end($arr);
 $newpath=substr($path,0,-strlen(".".$ext))."_{$width}_{$height}.{$ext}";
 if(!is_file(ROOT_PATH."public".$newpath)){
    echo "sc";
    $image->thumb($width,$height,$type)->save(ROOT_PATH."public".$newpath);
 }
 return $newpath;
}

快捷键：tpsuoluetu

源：

sublime_text格式

<snippet>
    <content><![CDATA[
/**
* 图像的裁剪
* 依赖 composer require topthink/think-image
  1 等比例缩放;  2 缩放后填充;  3 居中裁剪;  4 左上角裁剪; 5右下角裁剪;  6 固定尺寸缩放; 
  路径必须/开头
*/
function thumb_img(\$path,\$width = 300,\$height = null,\$type=3){
 if(substr(\$path,0,1)!=="/"){
    return \$path;
 }
 \$image = \think\Image::open(ROOT_PATH."public".\$path);
 \$imgWidth = \$image->width();
 \$imgHeight = \$image->height();
 \$scale=\$imgWidth/\$imgHeight;
 if(!\$height){
    \$height=intval(\$width/\$scale);
 }
 \$arr=explode(".",\$path);
 \$ext=end(\$arr);
 \$newpath=substr(\$path,0,-strlen(".".\$ext))."_{\$width}_{\$height}.{\$ext}";
 if(!is_file(ROOT_PATH."public".\$newpath)){
    echo "sc";
    \$image->thumb(\$width,\$height,\$type)->save(ROOT_PATH."public".\$newpath);
 }
 return \$newpath;
}
]]></content>
   <tabTrigger>tpsuoluetu(thinkphp生成缩略图)</tabTrigger>
   <scope></scope>
</snippet>