Hi, I have the following MySQL timestamp: 2009-06-23 16:21:48 How can I convert it to a format like mktime()?
                +3 
                A: 
                
                
              There is a MySQL function unix_timestamp.  In your SQL query, instead of selecting the Datetime or Timestamp column directly, do this:
SELECT unix_timestamp(MyDatetimeColumn) FROM MyTable
Alternatively, if you have the string already, you could use the PHP function strtotime().
                  Matt Bridges
                   2009-06-30 14:53:01
                
              You probably want to alias the name too: SELECT UNIX_TIMESTAMP(MyDatetimeColumn) AS MyTimestampColumn
                  Greg
                   2009-06-30 14:56:49
                where should i preform the calculation in order to maximize efficiency? at the PHP or at the MySQL level?
                  
                   2009-06-30 15:09:48
                The SQL implementation is probably faster because it doesn't have to parse a string.
                  Matt Bridges
                   2009-06-30 19:00:27
                
                
                A: 
                
                
              
            ok, I was wrestling with this for a week (longer but i took a break from it).
I have two specific fields in tables
creationDate > timestamp > current_timestamp editDate > timestamp > current_timestamp
they were pulling out either dec 31 1969, or just nothing... annoying... very annoying
in mysql query i did:
                unix_timestamp(creationDate) AS creationDate
                unix_timestamp(editDate) AS editDate
in php convert i did:
        $timestamp = $result_ar['creationDate'];
        $creationDate = date("Y-M-d (g:i:s a)", $timestamp)
                echo($creationDate);
        $editstamp = $result_ar['editDate'];
        $editDate = date("Y-M-d (g:i:s a)", $editstamp)
                echo($editDate);
this solved my problem for me returning
                2010-Jun-28 (5:33:39 pm)
                2010-Jun-28 (12:09:46 pm)
respectively.
I hope this helps someone out...
                  James Van Leuvaan
                   2010-07-02 21:18:23