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run code in 300+ PHP versions simultaneously
<?php $a = range(1, 10); $b = range('a', 'f'); $c = range('A', 'B'); var_export(implode(array_merge(...array_map(null, $a, $b, $c))));
Output for git.master, git.master_jit, rfc.property-hooks
'1aA2bB3c4d5e6f78910'

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