PHP time problems

PHP time question registration $ regdate = date (& quot; Y-m-d & quot ;) when I log in to the database but check the database after registration, the logtime shows. why is it displayed when I use the output statement? If you need to read this reply, please log on or register CSDN! PHP time problems
$ Regdate = date ("Y-m-d") at registration ")
0000-00-00 is displayed in logtime when the database is saved but registered and viewed in the database
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Why? How to Change

------ Solution --------------------
In fact, you directly
$ SQL = "INSERT INTO register (name, password, email, logTime, score) VALUES ('$ username',' $ password', '$ email', now (), 10 )";
Better