The array_unique is used to removes duplicate values from an array.
Description
The array_unique() function removes duplicate values from an array. This function take an input array and returns a new array without duplicate values. If two or more array values are the same, the first appearance will be kept and the other will be removed.
Read Also : Remove Last Element From An Array In PHP
Syntax
array_unique(array)
Examples
Example #1
<?php
$input = array("Apple", "Banana", "Banana", "Cherry", "Mango", "Mango", "Orange");
$result = array_unique($input);
print_r($result);
?>
In the above example i have “Banana”, “Mango” values are repeated two times in an array but when i use array_unique() function then it will return only unique value as below output:
Array
(
[0] => Apple
[1] => Banana
[3] => Cherry
[4] => Mango
[6] => Orange
)