The compact() function is used to create an array from variables and their values. PHP extract() function is used to import variables into the local symbol table from an array. PHP extract() function ...

Returns the arc cosine of arg in radians. acos() is the inverse function of cos(), which means that a==cos(acos(a)) for every value of a that is within acos()' range. ArrayFlip returns an array in ...

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.