3v4l.org

run code in 300+ PHP versions simultaneously
<?php $path = ['eeny', 'meeny', 'miny', 'moe']; $a = []; $b = & $a; foreach ($path as $seg) { $b = & $b[$seg]; } $b = 'HelloooOOOooo!'; var_dump($a);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(1) { ["eeny"]=> array(1) { ["meeny"]=> array(1) { ["miny"]=> array(1) { ["moe"]=> &string(14) "HelloooOOOooo!" } } } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(1) { ["eeny"]=> array(1) { ["meeny"]=> array(1) { ["miny"]=> array(1) { ["moe"]=> &string(14) "HelloooOOOooo!" } } } }

preferences:
172.47 ms | 402 KiB | 187 Q