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<?php
/**
* This file is part of the Carbon package.
*
* (c) Brian Nesbitt <brian@nesbot.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Carbon\Traits;
/**
* Trait Timestamp.
*/
trait Timestamp
{
/**
* Create a Carbon instance from a timestamp and set the timezone (use default one if not specified).
*
* Timestamp input can be given as int, float or a string containing one or more numbers.
*
* @param float|int|string $timestamp
* @param \DateTimeZone|string|null $tz
*
* @return static
*/
public static function createFromTimestamp($timestamp, $tz = null)
{
return static::createFromTimestampUTC($timestamp)->setTimezone($tz);
}
/**
* Create a Carbon instance from an timestamp keeping the timezone to UTC.
*
* Timestamp input can be given as int, float or a string containing one or more numbers.
*
* @param float|int|string $timestamp
*
* @return static
*/
public static function createFromTimestampUTC($timestamp)
{
[$integer, $decimal] = self::getIntegerAndDecimalParts($timestamp);
$delta = floor($decimal / static::MICROSECONDS_PER_SECOND);
$integer += $delta;
$decimal -= $delta * static::MICROSECONDS_PER_SECOND;
return static::rawCreateFromFormat('U u', "$integer $decimal");
}
/**
* Create a Carbon instance from a timestamp in milliseconds.
*
* Timestamp input can be given as int, float or a string containing one or more numbers.
*
* @param float|int|string $timestamp
*
* @return static
*/
public static function createFromTimestampMsUTC($timestamp)
{
[$milliseconds, $microseconds] = self::getIntegerAndDecimalParts($timestamp, 3);
$sign = $milliseconds < 0 || $milliseconds === 0.0 && $microseconds < 0 ? -1 : 1;
$milliseconds = abs($milliseconds);
$microseconds = $sign * abs($microseconds) + static::MICROSECONDS_PER_MILLISECOND * ($milliseconds % static::MILLISECONDS_PER_SECOND);
$seconds = $sign * floor($milliseconds / static::MILLISECONDS_PER_SECOND);
$delta = floor($microseconds / static::MICROSECONDS_PER_SECOND);
$seconds += $delta;
$microseconds -= $delta * static::MICROSECONDS_PER_SECOND;
$microseconds = str_pad($microseconds, 6, '0', STR_PAD_LEFT);
return static::rawCreateFromFormat('U u', "$seconds $microseconds");
}
/**
* Create a Carbon instance from a timestamp in milliseconds.
*
* Timestamp input can be given as int, float or a string containing one or more numbers.
*
* @param float|int|string $timestamp
* @param \DateTimeZone|string|null $tz
*
* @return static
*/
public static function createFromTimestampMs($timestamp, $tz = null)
{
return static::createFromTimestampMsUTC($timestamp)
->setTimezone($tz);
}
/**
* Set the instance's timestamp.
*
* Timestamp input can be given as int, float or a string containing one or more numbers.
*
* @param float|int|string $unixTimestamp
*
* @return static
*/
public function timestamp($unixTimestamp)
{
return $this->setTimestamp($unixTimestamp);
}
/**
* Returns a timestamp rounded with the given precision (6 by default).
*
* @example getPreciseTimestamp() 1532087464437474 (microsecond maximum precision)
* @example getPreciseTimestamp(6) 1532087464437474
* @example getPreciseTimestamp(5) 153208746443747 (1/100000 second precision)
* @example getPreciseTimestamp(4) 15320874644375 (1/10000 second precision)
* @example getPreciseTimestamp(3) 1532087464437 (millisecond precision)
* @example getPreciseTimestamp(2) 153208746444 (1/100 second precision)
* @example getPreciseTimestamp(1) 15320874644 (1/10 second precision)
* @example getPreciseTimestamp(0) 1532087464 (second precision)
* @example getPreciseTimestamp(-1) 153208746 (10 second precision)
* @example getPreciseTimestamp(-2) 15320875 (100 second precision)
*
* @param int $precision
*
* @return float
*/
public function getPreciseTimestamp($precision = 6)
{
return round($this->rawFormat('Uu') / pow(10, 6 - $precision));
}
/**
* Returns the milliseconds timestamps used amongst other by Date javascript objects.
*
* @return float
*/
public function valueOf()
{
return $this->getPreciseTimestamp(3);
}
/**
* @alias getTimestamp
*
* Returns the UNIX timestamp for the current date.
*
* @return int
*/
public function unix()
{
return $this->getTimestamp();
}
/**
* Return an array with integer part digits and decimals digits split from one or more positive numbers
* (such as timestamps) as string with the given number of decimals (6 by default).
*
* By splitting integer and decimal, this method obtain a better precision than
* number_format when the input is a string.
*
* @param float|int|string $numbers one or more numbers
* @param int $decimals number of decimals precision (6 by default)
*
* @return array 0-index is integer part, 1-index is decimal part digits
*/
private static function getIntegerAndDecimalParts($numbers, $decimals = 6)
{
if (\is_int($numbers) || \is_float($numbers)) {
$numbers = number_format($numbers, $decimals, '.', '');
}
$sign = substr($numbers, 0, 1) === '-' ? -1 : 1;
$integer = 0;
$decimal = 0;
foreach (preg_split('`[^0-9.]+`', $numbers) as $chunk) {
[$integerPart, $decimalPart] = explode('.', "$chunk.");
$integer += \intval($integerPart);
$decimal += \floatval("0.$decimalPart");
}
$overflow = floor($decimal);
$integer += $overflow;
$decimal -= $overflow;
return [$sign * $integer, $decimal === 0.0 ? 0.0 : $sign * round($decimal * pow(10, $decimals))];
}
}