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run code in 300+ PHP versions simultaneously
<?php $global = 42; function outer() { global $global, $local; $local = $global; function inner() { global $global, $local; var_dump($global, $local); } } outer(); inner();
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(42) int(42)

preferences:
150 ms | 402 KiB | 146 Q