Create multidimensional array unique for any single key index. Note: The keys are preserved. $array = getLotsOfObjects(); // Create a temporary array that will not contain any duplicate elements $new = array(); // Loop through all elements. I needed a way of retaining the original array's keys in the new, unique array. Program 1: This example using array_replace() function to merge two arrays and preserve the keys. PHP array_merge() Function. Implement the unique_names function. It works for my purposes but may need refinement. The Basics array_values() array_keys() array_combine() array_flip() the given flags, then the key and value of The array_merge() function returns an array in which the elements of all arrays passed in parameters are merged. Your email address will not be published. You can use array_unique() function and array_merge() function to merge two arrays in one Without Duplicate Values. (string) $elem1 === (string) $elem2 i.e. work on multi dimensional arrays.

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