How to Remove Duplicates From Multidimensional Array, PHP

/ By Arjun / Published on September 11, 2021

Removing duplicates from the flatten array is simple and we have a built-in function for it. The array_unique function removes duplicates from the one-dimensional array. 

we gonna use array_unique function along with array_mapserialize and unserialize to remove duplicates from the multidimensional PHP array.


array_map — Applies the callback to the elements of the given array

serialized — Generates a storable representation of a value

unserialize — Creates a PHP value from a stored representation

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