| @@ 51-61 (lines=11) @@ | ||
| 48 | } |
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| 49 | } |
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| 50 | ||
| 51 | public function add($interval) : self |
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| 52 | { |
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| 53 | $d1 = $this->getRefDT(); |
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| 54 | $d1->add($this); |
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| 55 | $d1->add(new self($interval)); |
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| 56 | $int = ($this->getRefDT())->diff($d1); |
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| 57 | $this->__construct(self::parse($int)); |
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| 58 | if ($d1 < $this->getRefDT()) |
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| 59 | $this->invert = 1; |
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| 60 | return $this; |
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| 61 | } |
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| 62 | ||
| 63 | public function sub($interval) : self |
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| 64 | { |
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| @@ 63-73 (lines=11) @@ | ||
| 60 | return $this; |
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| 61 | } |
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| 62 | ||
| 63 | public function sub($interval) : self |
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| 64 | { |
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| 65 | $d1 = $this->getRefDT(); |
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| 66 | $d1->add($this); |
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| 67 | $d1->sub(new self($interval)); |
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| 68 | $int = ($this->getRefDT())->diff($d1); |
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| 69 | $this->__construct(self::parse($int)); |
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| 70 | if ($d1 < $this->getRefDT()) |
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| 71 | $this->invert = 1; |
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| 72 | return $this; |
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| 73 | } |
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| 74 | ||
| 75 | public function toSeconds() : int |
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| 76 | { |
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