Getting Date and Time Elements

  $ModifiedDateTime = date('Y-m-d H:i:s', strtotime($MyDateTime));

  //"Y-m-d H:i:s' gives "2000-01-01 00:00:00"

  $Year = intval(date('Y', strtotime($MyDateTime)));
  $Month = intval(date('n', strtotime($MyDateTime)));
  $DayOfMonth = intval(date('j', strtotime($MyDateTime)));
  $Hour = intval(date('G', strtotime($MyDateTime)));

Parameters you can use

Calculations

Date in # days time
  $project_end_date = date("Y-m-d", mktime(date('H'),date('i'),date('s'), date('m'),date('d') + 30,date('Y')));

Compare Date Time

     $now = strtotime(date("Y-m-d H:i:s"));
     $end = strtotime($UpgradesValidUntil);
     if ($now > $end)
     {
     }


     if ( strtotime($MyDateTimeString1) > strtotime($MyDateTimeString2) )
     {
     }

Adjusting Date Time Values

  $AdjustedTime = date('Y-m-d H:i:s',strtotime('+1 hour +30 minutes +45 seconds',strtotime($MyDateTime)));

  $AdjustedTime = date('Y-m-d H:i:s',strtotime('+1 hour',strtotime($MyDateTime)));

  $AdjustedTime = date('Y-m-d H:i:s',strtotime("-$MyVariable minutes",strtotime($MyDateTime)));

Values:

  • week
  • day
  • hour
  • minute
  • second

MYSQL Date & Time

To set a DateTime field to now use:

Now()

(Don’t add single quotes around it)

Is String A Date?

if (strtotime($CreatedDateTime) !== FALSE)
  //Yes string is a date

Convert DateTime

See Strings-Values

Convert compcated format to universal format
  $SourceString = "2002-01-01 12:44:13";    //Uses this fixed length format: "yyyymmddhhmmss"
  $EventDateTime = "";
  $EventDateTime .= substr($SourceString, 0, 4) . "-";
  $EventDateTime .= substr($SourceString, 4, 2) . "-";
  $EventDateTime .= substr($SourceString, 6, 2) . " ";
  $EventDateTime .= substr($SourceString, 8, 2) . ":";
  $EventDateTime .= substr($SourceString, 10, 2) . ":";
  $EventDateTime .= substr($SourceString, 12, 2);
UK Electronic Designer
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