Hello my friends.
Look at this please:
I used this
https://duckduckgo.com/?q=3D&t=canonical&ia=meanings as the url, i thought the code above shoud do like this:
Find all the links in that page of the internet, but you can see the result! As there are many links to different websites on that url page, so why it didn't print the url of each website into output?!