How to remove duplicate data from array in php

How to delete duplicate data in an array in php: You can use the php built-in function array_unique() to achieve this. The array_unique() function is used to remove duplicate values ​​from the array and return the filtered array. If two or more array values ​​are the same, only the first value is retained and the other values ​​are removed.

array_unique() function is used to remove duplicate values ​​from an array and return the filtered array.

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If two or more array values ​​are the same, only the first value is retained, and the other values ​​are moved remove.

Syntax:

array_unique(array)

Parameters:

• array Required. Specifies array

• sortingtype Optional. Specify the sorting type

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Example:

<?php
$a=array("a"=>"red","b"=>"green","c"=>"red");
print_r(array_unique($a));
?>

Output result:

Array ( [a] => red [b] => green )

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