Why shouldn't I use mysql_* functions in PHP?

What are the technical reasons for why one shouldn't use mysql_* functions? (e.g. mysql_query(), mysql_connect() or mysql_real_escape_string())? Why should I use something else even if they work on my site? If they don't work on my site, why do I get errors like > Warning: mysql_connect(): No such file or directory

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Ifeoluwa A. answered • 05/18/19

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