Simple, fast and powerful PHP utility functions to flatten/unflatten multidimensional/JSON arrays into a one-dimensional array, preserving key names and joining them with customizable separators.

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Abstract: Multidimensional arrays have proven to be useful in watermarking, therefore interest in this subject has increased in the previous years along with the number of publications. For one ...

A lower hemi-continuous correspondence with open and convex values in Rn must have open lower sections. This well- known fact has been used to establish the existence of continuous selections, maximal ...