Recommended way for passing binary data about ext-php-rs

[davidcole1340]

You can use Binary<u8> as an argument for binary data. Internally it is represented (and dereferences to) a Vec<u8>. See here for more: https://davidcole1340.github.io/ext-php-rs/types/binary.html

[cquintana92]

First of all, thanks for your fast response! I have checked and indeed it works as expected 👍

Last question regarding to this issue. I've been reading through the code for Binary<T>, and it seems like it copies all the PHP memory into Rust owned memory: https://github.com/davidcole1340/ext-php-rs/blob/master/src/binary.rs#L156-L166

Would there be a way to obtain a reference to that memory without copying it? We should be able to achieve something like that by using std::slice::from_raw_parts, which converts a *const T and a length to an &[T] (it probably would only make sense to use it for &[u8].

Probably it would make sense to implement it in another trait/struct, such as BinaryRef.

Thanks!

[cquintana92]

Implemented in this PR :)

#139