How do I save a timestamp to a mysql database?

Question

I have a table in mysql for people's posts. But I'd like to be able to get the time the post was made? How do I do it? Any help will be appreciated. The language I'm using is PHP and I'm using prepared statements. Is it as simple as specifying a column in the database with the datatype TIMESTAMP? And how do I read a timestamp and convert it to a date?

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Answer 1

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When specifying a column in the database, Use datetime and as default, select current time

Answer 2

  $timestamp = date("Y-m-d H:i:s");

Answer 3

如果使用 DEFAULT CURRENT_TIMESTAMP 该列不为 NULL，则无需在 INSERT 中提及该列。