how to retrieve a sql datetime object with a php $row?

Question

For instance:

$sql = "SELECT * FROM db";
$query = sqlsrv_query($conn, $sql);

while($row = sqlsrv_fetch_array($query)){
    echo "$row[date_column]";
}

will crash

Most of the answers I've found are assuming you want to order your query by a datetime, but I just want to turn the datetime object into a string after I have all the rows.

I don't really understand how to use the php date() function, I've tried:

echo date("m/d/Y",$row[date_column]); //prints nothing

Answer 1

$string=$row["date_column"]->format('Y-m-d H:i:s')