array_unique not working as expected in php
array-unique, php
Solution
use `var_dump` instead of `print_r` and you'll see there difference between the "test"s (take a look at codepad).
your code contains `\r\n` as linebreaks and you're splittoing at `\n`, so `\r` is still there at all entrys except the last one.
you're already using `array_map` to prevent this but forgot to use the retun-value (it doesn't work by reference) in the latter code. change that line to:
$list_explode = array_map('trim', $list_explode);
after doing this, you'll get what you expect (see at codepad again).
Problem
Here is a problem. i am exploding a list of character by new line in an array. and doing array unique on it. but it is not working as expected. below is code: ``` $list = "test ok test test ok ok test"; $list_explode = explode("\n", $list); //exploding the characters of the list from the input //displaying unique array_map('trim', $list_explode); $result = array_unique($list_explode); print_r($result); ``` The result is `Array ( [0] => test [1] => ok [6] => test )`