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run code in 300+ PHP versions simultaneously
<?php var_dump((bool) array_filter([ ], function (bool $value) { return $value; }));
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.4 - 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
bool(false)

preferences:
114.68 ms | 403 KiB | 131 Q