How can I solve this “Warning: mysqli_connect(): (HY000/1049): Unknown database” problem??

How can i solve this “Warning: mysqli_connect(): (HY000/1049): Unknown database” problem?
#mysqli_connect_problem_solve

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[olivierfilmz]

Thank you so much mn I've been struggling with this error for a whole week!

[slmoviehub]

wow . watch so many videos, . but cant fixed error. but you are the best.

[dsannihilator]

You're a life saver bro 😀 thank you 🎉

[sahilnaik-fx]

Thanks bro....was facing this issue from last 1 month

[asehckrad]

Thank you, the most useful video of it's "wamp 1049" error kind!!!!

[MaryJosephrobi]

Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you

[jujuchannel]

Thank you..
I'm from Indonesian 🙏🏻

[georgedarko]

how bro, 👊👊👊👊👊you are amazing. Thank you very much 😏😏😏

[AjaySharma-pjpr]

From where did you write 3308 to solve the error I don't undestood

[nobojittanti]

Please don't put this background music in this type of video.