Code Duplication    Length = 22-22 lines in 2 locations

src/Date.php 2 locations

@@ 300-321 (lines=22) @@
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	 *
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	 * @return  bool|Date  this object for chaining, or false on failure
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	 */
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	public function add($interval = null)
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	{
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		if ( ! $interval instanceOf DateInterval)
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		{
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			if (is_numeric($interval))
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			{
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				$delta = intval($interval);
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				$interval = new DateInterval('PT'.strval(abs($delta)).'S');
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				if ($delta < 0)
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				{
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					$interval->invert = 1;
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				}
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			}
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		}
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		if ($this->datetime->add($interval))
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		{
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			return $this;
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		}
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		return false;
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	}
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	/**
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	 * Subtracts an amount of days, months, years, hours, minutes and seconds to the object
@@ 330-351 (lines=22) @@
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	 *
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	 * @return  bool|Date  this object for chaining, or false on failure
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	 */
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	public function sub($interval = null)
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	{
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		if ( ! $interval instanceOf DateInterval)
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		{
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			if (is_numeric($interval))
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			{
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				$delta = intval($interval);
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				$interval = new DateInterval('PT'.strval(abs($delta)).'S');
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				if ($delta < 0)
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				{
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					$interval->invert = 1;
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				}
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			}
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		}
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		if ($this->datetime->sub($interval))
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		{
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			return $this;
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		}
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		return false;
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	}
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	/**
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	 * Alter the timestamp of a Date object by incrementing or decrementing