3v4l.org

run code in 300+ PHP versions simultaneously
<?php $vendorsList= array(); $key ="Star war"; $vendorsList[$key][]="1"; $vendorsList[$key][]="2"; print_r($vendorsList);
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 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 ( [Star war] => Array ( [0] => 1 [1] => 2 ) )
preferences:
111.88 ms | 408 KiB | 5 Q