Convert time() from SQL for monthly sales PHP - php

Question

I want to make monthly sales from the sales table but i store date data using time() format
Example :
UserID | Product | Date
1 | Hot Dog | 1504363230
4 | Chicken | 1504695631
1 | Potato | 1504761716
3 | Spinach | 1505003789
So, how can i create monthly sales from there without replace Date into date() ? Because it will take a long time if i have to change 300K row
What should i do ?
Select * FROM Sales WHERE UserID = UserID AND Date = ?
the output must be like this
UserID 1 do 2 transaction in the last month or UserID 1 do 3 transaction in this
month

Answer 1

A PHP solution would be to use the second parameter in the date function:
string date ( string $format [, int $timestamp = time() ] )
The optional timestamp parameter is an integer Unix timestamp that defaults to the current local time if a timestamp is not given. In other words, it defaults to the value of time().

Answer 2

You can convert a unix timestamp to a datetime string in MySQL with FROM_UNIXTIME.
SELECT FROM_UNIXTIME(`Date`) as `Datetime` FROM sales
You can then expand on this with other date functions like MONTH or YEAR
SELECT MONTH(FROM_UNIXTIME(`Date`)) as `Month` FROM sales

Answer 3

EDIT:
I think this should work for you. I guess you want to avoid PHP's date() but MySQL's DATE() is okay.
SELECT
COUNT(*) AS nb_transaction,
UserID
FROM
sales
WHERE
DATE(`Date`) LIKE '2018-06-%'
Of course replace the month with the one you are looking for.
SQL (will be faster than PHP):
You can convert any UNIX Timestamp using FROM_UNIXTIME() to any format:
FROM_UNIXTIME(`Date`, '%Y %D %M %h:%i:%s')
PHP:
The time() function returns a UNIX Timestamp.
If you want to display a date using one, you can use DateTime::setTimestamp:
$date = new DateTime();
$date->setTimestamp($row['Date']);
echo $date->format('Y-m-d H:i:s'); // Hot Dog = 2017-09-02 14:40:30
Or shortly:
echo (new DateTime())->setTimestamp($row['Date'])->format('Y-m-d H:i:s');

Answer 4

$timestamp = 1517317337107; $date=date('Y-m-d H:i:s',
$timestamp/1000);
echo "date and time : ". $date."<br>";
$month=date('Y-m-d',$timestamp/1000);
echo "only date : ".$month."<br>";
#output
date and time : 2018-01-30 13:02:17
only date : 2018-01-30
hope this will help