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<?php
namespace Model;
use DateTime;
/**
* Date parser model
*
* @package model
* @author Frederic Guillot
*/
class DateParser extends Base
{
/**
* Return a timestamp if the given date format is correct otherwise return 0
*
* @access public
* @param string $value Date to parse
* @param string $format Date format
* @return integer
*/
public function getValidDate($value, $format)
{
$date = DateTime::createFromFormat($format, $value);
if ($date !== false) {
$errors = DateTime::getLastErrors();
if ($errors['error_count'] === 0 && $errors['warning_count'] === 0) {
$timestamp = $date->getTimestamp();
return $timestamp > 0 ? $timestamp : 0;
}
}
return 0;
}
/**
* Parse a date ad return a unix timestamp, try different date formats
*
* @access public
* @param string $value Date to parse
* @return integer
*/
public function getTimestamp($value)
{
foreach ($this->getDateFormats() as $format) {
$timestamp = $this->getValidDate($value, $format);
if ($timestamp !== 0) {
return $timestamp;
}
}
return 0;
}
/**
* Return the list of supported date formats
*
* @access public
* @return array
*/
public function getDateFormats()
{
return array(
t('m/d/Y'),
'Y-m-d',
'Y_m_d',
);
}
/**
* For a given timestamp, reset the date to midnight
*
* @access public
* @param integer $timestamp Timestamp
* @return integer
*/
public function resetDateToMidnight($timestamp)
{
return mktime(0, 0, 0, date('m', $timestamp), date('d', $timestamp), date('Y', $timestamp));
}
}
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