3v4l.org

run code in 500+ 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
array(1) { [0]=> string(4) "2020" }
preferences:
85.76 ms | 1133 KiB | 4 Q