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run code in 300+ PHP versions simultaneously
<?php $items = [ ['a' => 1], ['b' => 2], ['c' => 3], ]; $result = array_merge(...$items); var_dump($result);
Output for 5.6.40, 7.0.33, 8.1.23 - 8.1.30, 8.2.10 - 8.2.25, 8.3.0 - 8.3.4, 8.3.6 - 8.3.14
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) }
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(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) }

preferences:
65.44 ms | 407 KiB | 5 Q