How to remove duplicate values from array in php

In php we have in built array function that can be used to remove duplicate values from the array.

Example with code and syntax:

<?php
$myarr=array("x"=>"Amol","y"=>"Sagar","z"=>"Amol");
print_r(array_unique($myarr));
?>

Above code will remove the third element z=Amol from array and return the array with unique values.

This is how we can remove duplicate values from an array in PHP.