andrejsstepanovs /
business-days-calculator
| @@ 121-136 (lines=16) @@ | ||
| 118 | * |
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| 119 | * @return $this |
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| 120 | */ |
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| 121 | public function addBusinessDays($howManyDays) |
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| 122 | { |
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| 123 | if ($howManyDays < 1) { |
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| 124 | throw new \InvalidArgumentException('The parameter $howManyDays must be greater than 0'); |
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| 125 | } |
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| 126 | ||
| 127 | $iterator = 0; |
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| 128 | while ($iterator < $howManyDays) { |
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| 129 | $this->getDate()->modify('+1 day'); |
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| 130 | if ($this->isBusinessDay($this->getDate())) { |
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| 131 | $iterator++; |
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| 132 | } |
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| 133 | } |
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| 134 | ||
| 135 | return $this; |
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| 136 | } |
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| 137 | ||
| 138 | /** |
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| 139 | * @param int $howManyDays |
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| @@ 143-159 (lines=17) @@ | ||
| 140 | * |
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| 141 | * @return $this |
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| 142 | */ |
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| 143 | public function subBusinessDays($howManyDays) |
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| 144 | { |
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| 145 | if ($howManyDays < 1) { |
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| 146 | throw new \InvalidArgumentException('The parameter $howManyDays must be greater than 0'); |
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| 147 | } |
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| 148 | ||
| 149 | $iterator = 0; |
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| 150 | while ($iterator < $howManyDays) { |
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| 151 | if ($this->isBusinessDay($this->getDate())) { |
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| 152 | $iterator++; |
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| 153 | } |
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| 154 | if ($iterator < $howManyDays) { //Don`t modify the date if we are on the last iteration |
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| 155 | $this->getDate()->modify('-1 day'); |
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| 156 | } |
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| 157 | } |
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| 158 | return $this; |
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| 159 | } |
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| 160 | ||
| 161 | /** |
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| 162 | * @return \DateTime |
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