Code Duplication    Length = 12-12 lines in 4 locations

src/RSSFeed/simplepie/simplepie_1.3.1.mini.php 4 locations

@@ 1099-1110 (lines=12) @@
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        }
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    }
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    public function get_category($key = 0)
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    {
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        $categories = $this->get_categories();
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        if (isset($categories[$key]))
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        {
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            return $categories[$key];
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        }
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        else
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        {
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            return null;
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        }
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    }
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    public function get_categories()
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    {
@@ 3651-3662 (lines=12) @@
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        }
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    }
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    public function get_category($key = 0)
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    {
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        $categories = $this->get_categories();
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        if (isset($categories[$key]))
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        {
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            return $categories[$key];
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        }
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        else
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        {
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            return null;
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        }
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    }
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    public function get_categories()
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    {
@@ 6324-6335 (lines=12) @@
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        }
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    }
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    public function get_category($key = 0)
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    {
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        $categories = $this->get_categories();
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        if (isset($categories[$key]))
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        {
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            return $categories[$key];
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        }
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        else
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        {
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            return null;
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        }
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    }
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    public function get_categories()
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    {
@@ 12706-12717 (lines=12) @@
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            return null;
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        }
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    }
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    public function get_category($key = 0)
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    {
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        $categories = $this->get_categories();
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        if (isset($categories[$key]))
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        {
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            return $categories[$key];
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        }
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        else
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        {
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            return null;
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        }
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    }
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    public function get_categories()
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    {
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        $categories = array();