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<span style="float:right;"><a href="https://github.com/RubixML/ML/blob/master/src/Persisters/Serializers/RBX.php">[source]</a></span> # RBX Rubix Object File format (RBX) is a format designed to reliably store and share serialized PHP objects. Based on PHP's native serialization format, RBX adds additional layers of compression, data integrity checks, and class compatibility detection all in one robust format. !!! note We recommend to use the `.rbx` file extension when storing RBX-serialized PHP objects. ## Parameters ## Parameters | # | Name | Default | Type | Description | |---|---|---|---|---| | 1 | level | 6 | int | The compression level between 0 and 9, 0 meaning no compression. | ## Example ```php use Rubix\ML\Serializers\RBX; $serializer = new RBX(6); ```
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