How to Remove Duplicate Array Values in PHP

A Sample PHP script to remove all the duplicate values from an array. A running example to remove duplicate array values using PHP

Use PHP array_unique() function to remove all the duplicate values form an array. This function takes input of an array and return another array without duplicate values.

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Here is an sample example:

Expected output:

Array
(
    [a] => green
    [1] => blue
    [2] => red
)