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run code in 300+ PHP versions simultaneously
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Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
string(17) "1616497608.051041" string(17) "1616497608.051041" string(10) "1616497608" string(10) "1616497608" object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2021-03-23 11:06:48.051000" ["timezone_type"]=> int(1) ["timezone"]=> string(6) "+00:00" } bool(false) bool(false)

preferences:
132.09 ms | 412 KiB | 5 Q