3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myarray = array('2020','2020'); $resultmatch = array_unique($myarray); var_dump($resultmatch);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array(1) { [0]=> string(4) "2020" }
preferences:
99.13 ms | 406 KiB | 5 Q