PHP时间工具种

PHP时间工具类

<?phpclass DateUtils {	function checkDate($date) { //检查日期是否合法日期		$dateArr = explode ( "-", $date );		if (is_numeric ( $dateArr [0] ) && is_numeric ( $dateArr [1] ) && is_numeric ( $dateArr [2] )) {			return checkdate ( $dateArr [1], $dateArr [2], $dateArr [0] );		}		return false;	}		function checkTime($time) { //检查时间是否合法时间  		$timeArr = explode ( ":", $time );		if (is_numeric ( $timeArr [0] ) && is_numeric ( $timeArr [1] ) && is_numeric ( $timeArr [2] )) {			if (($timeArr [0] >= 0 && $timeArr [0] = 0 && $timeArr [1] = 0 && $timeArr [2]  $v ) {			$v = ereg_replace ( "^0{1,}", '', trim ( $v ) );			if ($v == '') {				$dt [$k] = 0;			}		}		$mt = @gmmktime ( $dt [3], $dt [4], $dt [5], $dt [1], $dt [2], $dt [0] ) - 3600 * $cfg_cli_time;		if (! empty ( $mt )) {			return $mt;		} else {			return time ();		}	}		function MyDate($format = 'Y-m-d H:i:s', $timest = 0) { //返回格林威治标准时间		//global $cfg_cli_time='+8';		global $cfg_cli_time;		$addtime = $cfg_cli_time * 3600;		if (empty ( $format )) {			$format = 'Y-m-d H:i:s';		}		return gmdate ( $format, $timest + $addtime );	}		function floorTime($seconds) { //让日期显示为:XX天XX年以前 		$times = '';		$days = floor ( ($seconds / 86400) % 30 );		$hours = floor ( ($seconds / 3600) % 24 );		$minutes = floor ( ($seconds / 60) % 60 );		$seconds = floor ( $seconds % 60 );		if ($seconds >= 1)			$times .= $seconds . '秒';		if ($minutes >= 1)			$times = $minutes . '分钟 ' . $times;		if ($hours >= 1)			$times = $hours . '小时 ' . $times;		if ($days >= 1)			$times = $days . '天';		if ($days > 30)			return false;		$times .= '前';		return str_replace ( " ", '', $times );	}		function transDateToChs($date) {		if (empty ( $date ))			return '今日';		$y = _date ( 'Y', strtotime ( $date ) );		$m = _date ( 'm', strtotime ( $date ) );		$d = _date ( 'd', strtotime ( $date ) );		return $y . '年' . $m . '月' . $d . '日';	}		// 08/31/2004 => 2004-08-31	function TransDateUI($datestr, $type = 'Y-m-d') {		if ($datestr == Null)			return Null;		$target = $datestr;		$arr_date = preg_split ( "/\//", $target );		$monthstr = $arr_date [0];		$daystr = $arr_date [1];		$yearstr = $arr_date [2];		$result = date ( $type, mktime ( 0, 0, 0, $monthstr, $daystr, $yearstr ) );		return $result;	}		// 12/20/2004 10:55 AM => 2004-12-20 10:55:00	function TransDateTimeUI($datestr, $type = 'Y-m-d H:i:s') {		if ($datestr == Null)			return Null;		$target = $datestr;		$arr_date = preg_split ( "/\/|\s|:/", $target );		$monthstr = $arr_date [0];		$daystr = $arr_date [1];		$yearstr = $arr_date [2];		$hourstr = $arr_date [3];		$minutesstr = $arr_date [4];		$result = date ( $type, mktime ( $hourstr, $minutesstr, 0, $monthstr, $daystr, $yearstr ) );		return $result;	}		// 2004-08-31 => 08/31/2004	function TransDateDB($datestr, $type = 'm/d/Y') {		if ($datestr == Null)			return Null;		if ($datestr == '0000-00-00')			return Null;		$target = $datestr;		$arr_date = preg_split ( "/-/", $target );		$monthstr = $arr_date [1];		$daystr = $arr_date [2];		$yearstr = $arr_date [0];		$result = date ( $type, mktime ( 0, 0, 0, $monthstr, $daystr, $yearstr ) );		return $result;	}		// 2004-08-31 10:55:00 => 12/20/2004 10:55 AM 	function TransDateTimeDB($datestr, $type = 'm/d/Y h:i A') {		if ($datestr == Null)			return Null;		$target = $datestr;		$arr_date = preg_split ( "/-|\s|:/", $target );		$monthstr = $arr_date [1];		$daystr = $arr_date [2];		$yearstr = $arr_date [0];		$hourstr = $arr_date [3];		$minutesstr = $arr_date [4];		$secondstr = $arr_date [5];		$result = date ( $type, mktime ( $hourstr, $minutesstr, $secondstr, $monthstr, $daystr, $yearstr ) );		return $result;	}}?>

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