3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['contact', 'home', 'projects']; [$a[0], $a[1]] = [$a[1], $a[0]]; var_export($a);
Output for 7.2.0 - 7.2.34, 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 ( 0 => 'home', 1 => 'contact', 2 => 'projects', )
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 ( 0 => 'home', 1 => 'contact', 2 => 'projects', )
preferences:
146.35 ms | 402 KiB | 191 Q