Answers for "how to remove duplicates in a php array without a build-in function"

php remove duplicates from array

<?php
$fruits_list = array('Orange',  'Apple', ' Banana', 'Cherry', ' Banana');
$result = array_unique($fruits_list);
print_r($result);
?>
  
Output:

Array ( [0] => Orange [1] => Apple [2] => Banana [3] => Cherry )

php remove duplicates from string

$str = implode(',',array_unique(explode(',', $str)));