Tp6图像处理生成缩略图方法

composer require topthink/think-image

composer update

<?php
$og_thumb = public_path().$goods->og_thumb;
$image = \think\Image::open($og_thumb);
//生成缩略图
//小缩略图
$sm_thumb = 'sm_'.$file_name;
//中缩略图
$mid_thumb = 'mid_'.$file_name;
//大缩略图
$big_thumb = 'big_'.$file_name;
$image->thumb(500, 500)->save(public_path().$file_path.$big_thumb);
$image->thumb(200, 200)->save(public_path().$file_path.$mid_thumb);
$image->thumb(80, 80)->save(public_path().$file_path.$sm_thumb);
?>