I used a crawler to crawl the pictures of other people’s websites. The current speed is 30 minutes. I can download all 5 G’s of a column. Is it illegal to spread this crawler?

  question

I made a reptile, and just started to download cute dog pictures. Then I found there were many pictures on his website, one by one.
The php curl class I am currently working on can quickly download pictures of his website. If I discuss my class openly with everyone, I will use his website address to demonstrate it. Is this illegal?
Because I don’t think I’m doing this well, I want to send it out to communicate with everyone. Then I can improve it. Because I’m a novice and I’m learning php for the first time.
I am afraid to send it out now, and then others will download his pictures, and then he will flow to uncertain. If he finds me, he will be miserable.
gif演示

下载总大小以及时间

2017-4-5 :17:49 Update
Github address ishttps://github.com/buffge/buf …
Please give us more advice. I feel that the download is very slow now. When downloading some big pictures, such as those over 10m, the speed can reach about 10m.
However, the speed of downloading some 3-4 megabytes is 3-4 megabytes. I now think that no matter how much I download, I will use all of my internet speed to download it. because curl_multi is a concurrent download, I think it should be possible. I don’t understand. it’s too delicious. I still have to learn c to learn the bottom layer before I know why.

It is not against the law to disseminate crawlers, and it is against the law to disseminate copyright data obtained by using crawlers.