This script can be fed a file with list of comma-separated values, and will output unique items (ie. remove repetitive ones).

Input file **must** be properly formatted, no extraneous lines or unwanted whitespace.

## Example Input File ##

**values.txt**

```
2016,2018,2018,2019,2018,2018,2018,2019,2016,2017,2014,2017,2019,2018,2014,2014,2017,2016,2014,2018,2017,2017,2014,2019,2015,2019,2019,2013,2013,2016,2019,2017,2019,2014,2017,2019
```

## Example Run ##

```
$> php get-unique-items.php values.txt
```

## Example Output ##

     Results
     =========================
     2016
     2018
     2019
     2017
     2014
     2015
     2013