convertStringToHash

[marconett]

Hi,

I compared my implementation (evanw/thumbhash#8) with yours and couldn't find any obvious problems. Yours seems cleaner and more like a complete package, so I'm discarding my implementation.

I added a function convertStringToHash that complements your convertHashToString.

Just two suggestions:

1. function encode should be renamed to something like RGBAToHash to keep it similar to the complementary function name hashToRGBA.
2. The lib requires php 8 because of multiple return types in the following line:

   thumbhash/src/Thumbhash.php

   Line 281 in 0cfc704

   public static function toApproximateAspectRatio(array $hash): float|int

   
   I know that php 8.1 ist the current actively supported version and 7 is end of life, but a lot of real world projects still rely on older versions.

Thanks for your work on this!

[SRWieZ]

Hi !

Thank you for you PR, I appreciate it

Those are great suggestions! I will look into that, I may need to downgrade PestPHP but that's not a major concern.

[AyubM]

If you are going to rename functions, please make sure to version correctly as I am already using this in production.

[SRWieZ]

Oh, already pushed 1.1.0 with naming change.

Sincerely sorry, I honestly thought of it and figured out that no-one would have used it so fast.
Trust me for not doing the same mistake in the future, any breaking changes would imply a major version bump.