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run code in 300+ PHP versions simultaneously
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Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.32, 7.2.0 - 7.2.33, 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(14) "protected_prop" string(12) "private_prop" string(18) "new_protected_prop" string(16) "new_private_prop" object(Foo)#1 (2) { ["a":protected]=> string(18) "new_protected_prop" ["b":"Foo":private]=> string(16) "new_private_prop" }

preferences:
111.88 ms | 414 KiB | 5 Q