Category:Helper -> Community | Category:Helper -> Date | Category:Helper -> Database
To enhance CI’s date helper with MySQL DATETIME / DATE functionality just create
date_helper.php in your application’s helpers directory, paste the original date_helper.php in (to keep its functionality) and then add the following code:
/**
* Convert MySQL's DATE (YYYY-MM-DD) or DATETIME (YYYY-MM-DD hh:mm:ss) to timestamp
*
* Returns the timestamp equivalent of a given DATE/DATETIME
*
* @todo add regex to validate given datetime
* @author Clemens Kofler <clemens.kofler@chello.at>
* @access public
* @return integer
*/
function mysqldatetime_to_timestamp($datetime = "")
{
// function is only applicable for valid MySQL DATETIME (19 characters) and DATE (10 characters)
$l = strlen($datetime);
if(!($l == 10 || $l == 19))
return 0;
//
$date = $datetime;
$hours = 0;
$minutes = 0;
$seconds = 0;
// DATETIME only
if($l == 19)
{
list($date, $time) = explode(" ", $datetime);
list($hours, $minutes, $seconds) = explode(":", $time);
}
list($year, $month, $day) = explode("-", $date);
return mktime($hours, $minutes, $seconds, $month, $day, $year);
}
/**
* Convert MySQL's DATE (YYYY-MM-DD) or DATETIME (YYYY-MM-DD hh:mm:ss) to date using given format string
*
* Returns the date (format according to given string) of a given DATE/DATETIME
*
* @author Clemens Kofler <clemens.kofler@chello.at>
* @access public
* @return integer
*/
function mysqldatetime_to_date($datetime = "", $format = "d.m.Y, H:i:s")
{
return date($format, mysqldatetime_to_timestamp($datetime));
}
/**
* Convert timestamp to MySQL's DATE or DATETIME (YYYY-MM-DD hh:mm:ss)
*
* Returns the DATE or DATETIME equivalent of a given timestamp
*
* @author Clemens Kofler <clemens.kofler@chello.at>
* @access public
* @return string
*/
function timestamp_to_mysqldatetime($timestamp = "", $datetime = true)
{
if(empty($timestamp) || !is_numeric($timestamp)) $timestamp = time();
return ($datetime) ? date("Y-m-d H:i:s", $timestamp) : date("Y-m-d", $timestamp);
}
New functions to enhance still more the CI’s date helper with MySQL DATETIME / DATE functionality. The procedures continue being the same ones, just add in your date_helper.php, in your application’s helpers directory, the following code:
/**
* Convert timestamp to Human Date
*
* Returns the date (format according to given string) of a given timestamp
*
* @author Cleiton Francisco V. Gomes <http://www.cleiton.net/>
* @access public
* @param string
* @param string
* @return string
*/
function timestamp_to_date($timestamp = "", $format = "d/m/Y H:i:s")
{
if(empty($timestamp) || !is_numeric($timestamp)) $timestamp = time();
return date($format, $timestamp);
}
/**
* Convert Human Date to Timestamp
*
* Returns the timestamp equivalent of a given HUMAN DATE/DATETIME
*
* @author Cleiton Francisco V. Gomes <http://www.cleiton.net/>
* @access public
* @param string
* @return integer
*/
function date_to_timestamp($datetime = "")
{
if (!preg_match("/^(\d{1,2})[.\- \/](\d{1,2})[.\- \/](\d{2}(\d{2})?)( (\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?$/", $datetime, $date))
return FALSE;
$day = $date[1];
$month = $date[2];
$year = $date[3];
$hour = (empty($date[6])) ? 0 : $date[6];
$min = (empty($date[7])) ? 0 : $date[7];
$sec = (empty($date[9])) ? 0 : $date[9];
return mktime($hour, $min, $sec, $month, $day, $year);
}
/**
* Convert HUMAN DATE to MySQL's DATE or DATETIME (YYYY-MM-DD hh:mm:ss)
*
* Returns the DATE or DATETIME equivalent of a given HUMAN DATE/DATETIME
*
* @author Cleiton Francisco V. Gomes <http://www.cleiton.net/>
* @access public
* @param string
* @param boolean
* @return string
*/
function date_to_mysqldatetime($date = "", $datetime = TRUE)
{
return timestamp_to_mysqldatetime(date_to_timestamp($date), $datetime);
}