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run code in 300+ PHP versions simultaneously
<?php $a = ['a', 'b', 'c']; $b = ['d', 'e', 'f', 'g']; var_export(array_map(fn() => implode(func_get_args()), $a, $b));
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 0 => 'ad', 1 => 'be', 2 => 'cf', 3 => 'g', )

preferences:
110.55 ms | 406 KiB | 5 Q