Converting String to DateTime in PHP - php

Question

I need to insert the datetime value entered from the HTML form using PHP into the MySQL database. However I receive the Incorrect datetime value error each time I try to execute the code below,
$rosterstartdate=$_GET['rosterstartdate'];
$rosterenddate=$_GET['rosterenddate'];
//$date = date_create_from_format('d/M/Y:H:i:s', $rosterstartdate);
//$date->getTimestamp();
//echo $date;
$date = strtotime($rosterstartdate);
echo date('d/M/Y H:i:s', $date);
// echo DATE_FORMAT($rosterstartdate,"%Y%m%d %H%i%s");
$con=mysql_connect("localhost","root","");
if($con==true){
mysql_select_db("attendance_db",$con);
$query="insert into tblroster values(LAST_INSERT_ID(),'$rosterteam','$rostershifts','$date','$rosterenddate')";
I have tried using each of the different techniques above to do the conversion but it does not work. Any ideas on how this could be inserted

Answer 1

try this:
$date = date('Y-m-d H:i:s', $date);
Instead of echoing it out, use that code to format the date.
However, it looks like what you really want is this:
$rosterstartdate = date('Y-m-d H:i:s', strtotime($rosterstartdate));
$rosterenddate = date('Y-m-d H:i:s', strtotime($rosterenddate));
This way you can just reference those two variables in your query string.

Answer 2

You don't need to format it if you have a unixtime use FROM_UNIXTIME,
change your query as
$rosterstartdate=$_GET['rosterstartdate'];
$rosterenddate=$_GET['rosterenddate'];
//$date = date_create_from_format('d/M/Y:H:i:s', $rosterstartdate);
//$date->getTimestamp();
//echo $date;
$date = strtotime($rosterstartdate);
$con=mysql_connect("localhost","root","");
if($con==true){
mysql_select_db("attendance_db",$con);
$query="insert into tblroster values(LAST_INSERT_ID(),'$rosterteam','$rostershifts',FROM_UNIXTIME($date),'$rosterenddate')";