MySQL date formats - difficulty Inserting a date

Question

I am trying to further a question I asked yesterday where I wanted to know how to query a date in a different format. But now I am trying to do an insert using this method (

Answer 1

When using a string-typed variable in PHP containing a date, the variable must be enclosed in single quotes:

$NEW_DATE = '1997-07-15';
$sql = "INSERT INTO tbl (NEW_DATE, ...) VALUES ('$NEW_DATE', ...)";