Error saving datetime to database after clicking buy on DoExpressCheckout - php

Question

My problem is the following:
When DoExpressCheckout() is executed i have to save some data to Database, including the current time + X time
The type of the field of the database is set to "datetime"
I'm using the strtotime function in this way
date_default_timezone_set('Europe/Rome');
$currentTime = date("Y-m-d");
$expected = date('Y-m-d',strtotime($currentTime.'+ 7 days'));
echo $expected;
$sql = "INSERT INTO acquisti (durata,prezzi,expectedtime) VALUES (".$str.",".$resArray['AMT'].",".$expected.")";
echo $sql;
mysql_query($sql) or die("Errore di inserimento");
Here i have two problems:
1) The query always returns me error when putting the $expected variable into the expectedtime field
2) If i put it manually (just to try if i was stupid) it writes me 0000-00-00 (i've enabled the ALLOW_INVALID_DATES)
Any suggestions?
Thanks a lot

Answer 1

Your field type is 'datetime', but you are only sending date using the INSERT query.
You need to use date('Y-m-d H:i:s') instead of date('Y-m-d'), or if you need only the date change the type of the field to date.

Answer 2

Put values in enclosure:
$sql = "
INSERT INTO acquisti (
durata, prezzi, expectedtime
) VALUES (
'$str', '{$resArray['AMT']}', '$expected'
)
";
But you should really need to start using prepared statements.
If you wish to pass datetime, then you should format accordinaly, like Y-m-d H:i:s.
PHP example:
$expected = date_create('now')->modify('+7 day')->format('Y-m-d H:i:s');
MySQL example:
$sql = "
INSERT INTO acquisti (
durata, prezzi, expectedtime
) VALUES (
'$str', '{$resArray['AMT']}', DATE_ADD(NOW(), INTERVAL 7 DAY)
)
";