Code Duplication    Length = 11-11 lines in 2 locations

src/BufferUnpacker.php 2 locations

@@ 256-266 (lines=11) @@
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        return $num[1];
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    }
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    private function unpackU32()
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    {
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        $this->ensureLength(4);
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        $num = substr($this->buffer, $this->offset, 4);
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        $this->offset += 4;
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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 unpackU64()
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    {
@@ 323-333 (lines=11) @@
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        return $num[1];
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    }
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    private function unpackI64()
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    {
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        $this->ensureLength(8);
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        $num = substr($this->buffer, $this->offset, 8);
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        $this->offset += 8;
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        $set = unpack('N2', $num);
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        return $set[1] << 32 | $set[2];
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    }
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    private function unpackFloat()
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    {