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<?php |
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declare(strict_types=1); |
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namespace Eclipxe\XlsxExporter; |
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7
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class DateConverter |
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{ |
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public const TIME = 'TIME'; |
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11
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public const DATE = 'DATE'; |
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public const DATETIME = 'DATETIME'; |
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public const PRECISION_TIME = 6; |
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public const PRECISION_POW = 10 ** self::PRECISION_TIME; |
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19
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public static function tsToExcel(int $timestamp, string $type): string |
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{ |
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if (self::TIME === $type) { |
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return static::tsToExcelTime($timestamp); |
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} |
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if (self::DATE === $type) { |
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return static::tsToExcelDate($timestamp); |
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} |
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return static::tsToExcelDateTime($timestamp); |
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} |
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public static function tsToExcelTime(int $timestamp): string |
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{ |
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$utc = static::utcParts($timestamp); |
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// return number_format((($utc[3] * 3600) + ($utc[4] * 60) + $utc[5]) / 86400, static::PRECISION_TIME, '.', ''); |
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return number_format(self::roundTime($utc[3], $utc[4], $utc[5]), static::PRECISION_TIME, '.', ''); |
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} |
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public static function roundTime(int $hours, int $minutes, int $seconds): float |
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{ |
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$relative = ($hours * 3600 + $minutes * 60 + $seconds) / 86400; |
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return ceil(round(self::PRECISION_POW * $relative, 2)) / self::PRECISION_POW; |
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} |
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public static function tsToExcelDate(int $timestamp): string |
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{ |
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$utc = static::utcParts($timestamp); |
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// Bug 1900 is not a leap year |
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// http://support.microsoft.com/kb/214326 |
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$delta = (1900 == $utc[0] && $utc[1] <= 2) ? -1 : 0; |
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return (string) ((int) (25569 + $delta + (($timestamp + $utc[6]) / 86400))); |
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} |
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public static function tsToExcelDateTime(int $timestamp): string |
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{ |
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return number_format( |
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(int) static::tsToExcelDate($timestamp) + (float) static::tsToExcelTime($timestamp), |
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static::PRECISION_TIME, |
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'.', |
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'' |
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); |
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} |
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/** |
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* @return array{int, int, int, int, int, int, int} |
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*/ |
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public static function utcParts(int $timestamp): array |
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{ |
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$offset = idate('Z', $timestamp); |
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/** @var array{string, string, string, string, string, string, string} $values */ |
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$values = explode(',', gmdate('Y,m,d,H,i,s', $timestamp + $offset) . ',' . $offset); |
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return array_map('intval', $values); |
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} |
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} |
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eclipxe13 /
XLSXExporter
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