| @@ 57-67 (lines=11) @@ | ||
| 54 | } |
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| 55 | } |
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| 56 | ||
| 57 | public function add($interval) : self |
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| 58 | { |
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| 59 | $d1 = $this->getRefDT(); |
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| 60 | $d1->add($this); |
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| 61 | $d1->add(new self($interval)); |
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| 62 | $int = ($this->getRefDT())->diff($d1); |
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| 63 | self::__construct(self::parse($int)); |
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| 64 | if ($d1 < $this->getRefDT()) |
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| 65 | $this->invert = 1; |
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| 66 | return $this; |
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| 67 | } |
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| 68 | ||
| 69 | public function sub($interval) : self |
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| 70 | { |
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| @@ 69-79 (lines=11) @@ | ||
| 66 | return $this; |
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| 67 | } |
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| 68 | ||
| 69 | public function sub($interval) : self |
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| 70 | { |
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| 71 | $d1 = $this->getRefDT(); |
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| 72 | $d1->add($this); |
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| 73 | $d1->sub(new self($interval)); |
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| 74 | $int = ($this->getRefDT())->diff($d1); |
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| 75 | self::__construct(self::parse($int)); |
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| 76 | if ($d1 < $this->getRefDT()) |
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| 77 | $this->invert = 1; |
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| 78 | return $this; |
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| 79 | } |
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| 80 | ||
| 81 | public function toSeconds() : int |
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| 82 | { |
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