Code Duplication    Length = 36-36 lines in 2 locations

src/Datium.php 2 locations

@@ 410-445 (lines=36) @@
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     *
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     * @return object
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     */
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    public function add($value)
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    {
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        $this->date_interval_expression = str_replace(
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            $this->config['date_simple'],
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            $this->config['date_interval'],
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            $value
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        );
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        $unit = 'P';
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        if (strpos($this->date_interval_expression, 'T')) {
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            $this->date_interval_expression = str_replace(
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                'T',
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                '',
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                $this->date_interval_expression
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            );
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            $unit = 'PT';
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        }
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        $this->date_interval_expression = str_replace(
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            ' ',
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            '',
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            $unit.$this->date_interval_expression
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        );
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        $this->date_time->add(
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            new DateInterval($this->date_interval_expression)
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        );
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        $this->gregorian_DayofWeek = $this->date_time->format('w');
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        return $this;
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    }
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    /**
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     * Sub date from current date
@@ 454-489 (lines=36) @@
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     *
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     * @return obejct
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     */
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    public function sub($value)
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    {
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        $this->date_interval_expression = str_replace(
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            $this->config['date_simple'],
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            $this->config['date_interval'],
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            $value
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        );
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        $unit = 'P';
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        if (strpos($this->date_interval_expression, 'T')) {
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            $this->date_interval_expression = str_replace(
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                'T',
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                '',
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                $this->date_interval_expression
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            );
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            $unit = 'PT';
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        }
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        $this->date_interval_expression = str_replace(
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            ' ',
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            '',
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            $unit.$this->date_interval_expression
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        );
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        $this->date_time->sub(
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            new DateInterval($this->date_interval_expression)
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        );
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        $this->gregorian_DayofWeek = $this->date_time->format('w');
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        return $this;
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    }
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    /**
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     * Check if current year is leap or not