Code Duplication    Length = 11-11 lines in 2 locations

src/BufferUnpacker.php 2 locations

@@ 222-232 (lines=11) @@
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        return $num[1];
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    }
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    private function unpackU16()
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    {
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        $this->ensureLength(2);
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        $num = $this->buffer[$this->offset].$this->buffer[$this->offset + 1];
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        $this->offset += 2;
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        $num = unpack('n', $num);
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        return $num[1];
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    }
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    private function unpackU32()
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    {
@@ 277-287 (lines=11) @@
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        return $num[1];
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    }
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    private function unpackI16()
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    {
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        $this->ensureLength(2);
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        $num = $this->buffer[$this->offset].$this->buffer[$this->offset + 1];
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        $this->offset += 2;
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        $num = unpack('s', strrev($num));
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        return $num[1];
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    }
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    private function unpackI32()
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    {