PHP array_unique() function

This function removes the duplicate values from the array. If two or more array elements are same, then it kept the first and remove the others.

Syntax

array_unique(array);

array is the required parameter.

Example1

<?php
    $arr = array("car", "bus", "truck", "car");
    $arr_unique = array_unique($arr);
    print_r($arr_unique);
?>

Output :

Array ( [0] => car [1] => bus [2] => truck )

Example2

<?php
    $arr = array("10", "12", "33", "12", "22", "32", "10");
    $arr_unique = array_unique($arr);
    print_r($arr_unique);
?>

Output :

Array ( [0] => 10 [1] => 12 [2] => 33 [4] => 22 [5] => 32 )

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