In php, array_unique() function is used to remove all the duplicate values from an array, if we have two same values then this function will take first one and removed the another one.

syntax

array array_unique($array, $sort_flags)

this function takes two parameters

• $array= it specifies the input array from which we want to remove duplicates. it is mandatory
• $sort_flags= It is optional parameter. This parameter may be used to modify the sorting behavior using these values:

example

<?php
  

$team1 = array("shivam", "abhi", "om", "ravi","shivam","ravi","ram");

$team2 = array("shyam","ram","ramu","ram");
  
  echo "<pre>";
  
print_r(array_unique($team1));

print_r(array_unique($team2));

  echo "</pre>";
?>

output

Array
(
    [0] => shivam
    [1] => abhi
    [2] => om
    [3] => ravi
    [6] => ram
)
Array
(
    [0] => shyam
    [1] => ram
    [2] => ramu
)