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<?php namespace Foo; interface Bar { } class SomeClass implements Bar { } if (isset(class_implements(SomeClass::class)[Bar::class])) { echo 'Yupee!'; } else { echo 'Ugh :('; }
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.26, 8.0.0 - 8.0.13, 8.1rc1 - rc3
Yupee!

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37.38 ms | 460 KiB | 5 Q