function eo_check_datetime($format, $datetime_string, $timezone = false)
{
$timezone = $timezone instanceof DateTimeZone ? $timezone : eo_get_blog_timezone();
global $wp_locale;
//Handle localised am/pm
$am = $wp_locale->get_meridiem('am');
$AM = $wp_locale->get_meridiem('AM');
$pm = $wp_locale->get_meridiem('pm');
$PM = $wp_locale->get_meridiem('PM');
$meridan = array_filter(compact('am', 'AM', 'pm', 'PM'), 'trim');
$meridan = array_filter($meridan);
if ($meridan) {
$datetime_string = str_replace(array_values($meridan), array_keys($meridan), $datetime_string);
}
if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
return date_create_from_format($format, $datetime_string, $timezone);
} elseif (function_exists('strptime')) {
//Workaround for outdated php versions. Limited support, see conversion array below.
//Format conversion
$format_conversion = array('Y' => '%Y', 'm' => '%m', 'F' => '%B', 'd' => '%d', 'j' => '%e', 'S' => '%0', 'H' => '%H', 'G' => '%H', 'h' => '%I', 'g' => '%I', 'i' => '%M', 's' => '%S', 'a' => '%p', 'A' => '%P');
$strptime_format = str_replace(array_keys($format_conversion), array_values($format_conversion), $format);
$strptime = strptime($datetime_string, $strptime_format);
if (false == $strptime || !array_filter($strptime)) {
return false;
}
$ymdhis = sprintf('%04d-%02d-%02d %02d:%02d:%02d', $strptime['tm_year'] + 1900, $strptime['tm_mon'] + 1, $strptime['tm_mday'], $strptime['tm_hour'], $strptime['tm_min'], $strptime['tm_sec']);
try {
$date = new DateTime($ymdhis, $timezone);
return $date;
} catch (Exception $e) {
return false;
}
} else {
//Workaround for outdated php versions without strptime. Limited support, see conversion array below.
//Format conversion
$format_conversion = array('Y' => '(?P<year>\\d{4})', 'm' => '(?P<month>\\d{1,})', 'd' => '(?P<day>\\d{1,})', 'H' => '(?P<hour>\\d{2})', 'G' => '(?P<hour>\\d{1,2})', 'h' => '(?P<hour>\\d{2})', 'g' => '(?P<hour>\\d{1,2})', 'i' => '(?P<minute>\\d{1,2})', 's' => '(?P<second>\\d{1,2})', 'a' => '(?P<meridan>(am|pm))', 'A' => '(?P<meridan>(AM|PM))');
$reg_exp = "/^" . strtr($format, $format_conversion) . "\$/";
if (!preg_match($reg_exp, $datetime_string, $matches)) {
return false;
}
$meridan = isset($matches['meridan']) ? strtolower($matches['meridan']) : false;
$components = eo_array_key_whitelist($matches, array('year', 'month', 'day', 'hour', 'minute', 'second'));
extract(array_map('intval', $components));
if (!checkdate($month, $day, $year)) {
return false;
}
$datetime = new DateTime(null, $timezone);
$datetime->setDate($year, $month, $day);
if (isset($hour) && isset($minute)) {
if ($hour < 0 || $hour > 23 || $minute < 0 || $minute > 59) {
return false;
}
$hour = $meridan === 'pm' && $hour < 12 ? $hour + 12 : $hour;
//acount for 12 hour time
$datetime->setTime($hour, $minute);
}
return $datetime;
}
}
public function testWhiteListArrayKey()
{
$array = array('a' => 1, 'b' => 2, 'c' => 3);
$whitelist = array('a', 'c');
$expected = array('a' => 1, 'c' => 3);
$this->assertEquals($expected, eo_array_key_whitelist($array, $whitelist));
}
