Matthias Andreas Benkard | 7b2a3a1 | 2021-08-16 10:57:25 +0200 | [diff] [blame^] | 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This file is part of the Carbon package. |
| 5 | * |
| 6 | * (c) Brian Nesbitt <brian@nesbot.com> |
| 7 | * |
| 8 | * For the full copyright and license information, please view the LICENSE |
| 9 | * file that was distributed with this source code. |
| 10 | */ |
| 11 | namespace Carbon\Traits; |
| 12 | |
| 13 | /** |
| 14 | * Trait Timestamp. |
| 15 | */ |
| 16 | trait Timestamp |
| 17 | { |
| 18 | /** |
| 19 | * Create a Carbon instance from a timestamp and set the timezone (use default one if not specified). |
| 20 | * |
| 21 | * Timestamp input can be given as int, float or a string containing one or more numbers. |
| 22 | * |
| 23 | * @param float|int|string $timestamp |
| 24 | * @param \DateTimeZone|string|null $tz |
| 25 | * |
| 26 | * @return static |
| 27 | */ |
| 28 | public static function createFromTimestamp($timestamp, $tz = null) |
| 29 | { |
| 30 | return static::createFromTimestampUTC($timestamp)->setTimezone($tz); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Create a Carbon instance from an timestamp keeping the timezone to UTC. |
| 35 | * |
| 36 | * Timestamp input can be given as int, float or a string containing one or more numbers. |
| 37 | * |
| 38 | * @param float|int|string $timestamp |
| 39 | * |
| 40 | * @return static |
| 41 | */ |
| 42 | public static function createFromTimestampUTC($timestamp) |
| 43 | { |
| 44 | [$integer, $decimal] = self::getIntegerAndDecimalParts($timestamp); |
| 45 | $delta = floor($decimal / static::MICROSECONDS_PER_SECOND); |
| 46 | $integer += $delta; |
| 47 | $decimal -= $delta * static::MICROSECONDS_PER_SECOND; |
| 48 | $decimal = str_pad((string) $decimal, 6, '0', STR_PAD_LEFT); |
| 49 | |
| 50 | return static::rawCreateFromFormat('U u', "$integer $decimal"); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Create a Carbon instance from a timestamp in milliseconds. |
| 55 | * |
| 56 | * Timestamp input can be given as int, float or a string containing one or more numbers. |
| 57 | * |
| 58 | * @param float|int|string $timestamp |
| 59 | * |
| 60 | * @return static |
| 61 | */ |
| 62 | public static function createFromTimestampMsUTC($timestamp) |
| 63 | { |
| 64 | [$milliseconds, $microseconds] = self::getIntegerAndDecimalParts($timestamp, 3); |
| 65 | $sign = $milliseconds < 0 || $milliseconds === 0.0 && $microseconds < 0 ? -1 : 1; |
| 66 | $milliseconds = abs($milliseconds); |
| 67 | $microseconds = $sign * abs($microseconds) + static::MICROSECONDS_PER_MILLISECOND * ($milliseconds % static::MILLISECONDS_PER_SECOND); |
| 68 | $seconds = $sign * floor($milliseconds / static::MILLISECONDS_PER_SECOND); |
| 69 | $delta = floor($microseconds / static::MICROSECONDS_PER_SECOND); |
| 70 | $seconds += $delta; |
| 71 | $microseconds -= $delta * static::MICROSECONDS_PER_SECOND; |
| 72 | $microseconds = str_pad($microseconds, 6, '0', STR_PAD_LEFT); |
| 73 | |
| 74 | return static::rawCreateFromFormat('U u', "$seconds $microseconds"); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Create a Carbon instance from a timestamp in milliseconds. |
| 79 | * |
| 80 | * Timestamp input can be given as int, float or a string containing one or more numbers. |
| 81 | * |
| 82 | * @param float|int|string $timestamp |
| 83 | * @param \DateTimeZone|string|null $tz |
| 84 | * |
| 85 | * @return static |
| 86 | */ |
| 87 | public static function createFromTimestampMs($timestamp, $tz = null) |
| 88 | { |
| 89 | return static::createFromTimestampMsUTC($timestamp) |
| 90 | ->setTimezone($tz); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Set the instance's timestamp. |
| 95 | * |
| 96 | * Timestamp input can be given as int, float or a string containing one or more numbers. |
| 97 | * |
| 98 | * @param float|int|string $unixTimestamp |
| 99 | * |
| 100 | * @return static |
| 101 | */ |
| 102 | public function timestamp($unixTimestamp) |
| 103 | { |
| 104 | return $this->setTimestamp($unixTimestamp); |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Returns a timestamp rounded with the given precision (6 by default). |
| 109 | * |
| 110 | * @example getPreciseTimestamp() 1532087464437474 (microsecond maximum precision) |
| 111 | * @example getPreciseTimestamp(6) 1532087464437474 |
| 112 | * @example getPreciseTimestamp(5) 153208746443747 (1/100000 second precision) |
| 113 | * @example getPreciseTimestamp(4) 15320874644375 (1/10000 second precision) |
| 114 | * @example getPreciseTimestamp(3) 1532087464437 (millisecond precision) |
| 115 | * @example getPreciseTimestamp(2) 153208746444 (1/100 second precision) |
| 116 | * @example getPreciseTimestamp(1) 15320874644 (1/10 second precision) |
| 117 | * @example getPreciseTimestamp(0) 1532087464 (second precision) |
| 118 | * @example getPreciseTimestamp(-1) 153208746 (10 second precision) |
| 119 | * @example getPreciseTimestamp(-2) 15320875 (100 second precision) |
| 120 | * |
| 121 | * @param int $precision |
| 122 | * |
| 123 | * @return float |
| 124 | */ |
| 125 | public function getPreciseTimestamp($precision = 6) |
| 126 | { |
| 127 | return round($this->rawFormat('Uu') / pow(10, 6 - $precision)); |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Returns the milliseconds timestamps used amongst other by Date javascript objects. |
| 132 | * |
| 133 | * @return float |
| 134 | */ |
| 135 | public function valueOf() |
| 136 | { |
| 137 | return $this->getPreciseTimestamp(3); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Returns the timestamp with millisecond precision. |
| 142 | * |
| 143 | * @return int |
| 144 | */ |
| 145 | public function getTimestampMs() |
| 146 | { |
| 147 | return (int) $this->getPreciseTimestamp(3); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * @alias getTimestamp |
| 152 | * |
| 153 | * Returns the UNIX timestamp for the current date. |
| 154 | * |
| 155 | * @return int |
| 156 | */ |
| 157 | public function unix() |
| 158 | { |
| 159 | return $this->getTimestamp(); |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Return an array with integer part digits and decimals digits split from one or more positive numbers |
| 164 | * (such as timestamps) as string with the given number of decimals (6 by default). |
| 165 | * |
| 166 | * By splitting integer and decimal, this method obtain a better precision than |
| 167 | * number_format when the input is a string. |
| 168 | * |
| 169 | * @param float|int|string $numbers one or more numbers |
| 170 | * @param int $decimals number of decimals precision (6 by default) |
| 171 | * |
| 172 | * @return array 0-index is integer part, 1-index is decimal part digits |
| 173 | */ |
| 174 | private static function getIntegerAndDecimalParts($numbers, $decimals = 6) |
| 175 | { |
| 176 | if (\is_int($numbers) || \is_float($numbers)) { |
| 177 | $numbers = number_format($numbers, $decimals, '.', ''); |
| 178 | } |
| 179 | |
| 180 | $sign = str_starts_with($numbers, '-') ? -1 : 1; |
| 181 | $integer = 0; |
| 182 | $decimal = 0; |
| 183 | |
| 184 | foreach (preg_split('`[^0-9.]+`', $numbers) as $chunk) { |
| 185 | [$integerPart, $decimalPart] = explode('.', "$chunk."); |
| 186 | |
| 187 | $integer += (int) $integerPart; |
| 188 | $decimal += (float) ("0.$decimalPart"); |
| 189 | } |
| 190 | |
| 191 | $overflow = floor($decimal); |
| 192 | $integer += $overflow; |
| 193 | $decimal -= $overflow; |
| 194 | |
| 195 | return [$sign * $integer, $decimal === 0.0 ? 0.0 : $sign * round($decimal * pow(10, $decimals))]; |
| 196 | } |
| 197 | } |