1--TEST-- 2BackedEnum::tryFrom() 3--FILE-- 4<?php 5 6enum Suit: string { 7 case Hearts = 'H'; 8 case Diamonds = 'D'; 9 case Clubs = 'C'; 10 case Spades = 'S'; 11} 12 13var_dump(Suit::tryFrom('H')); 14var_dump(Suit::tryFrom('D')); 15var_dump(Suit::tryFrom('C')); 16var_dump(Suit::tryFrom('S')); 17var_dump(Suit::tryFrom('X')); 18 19enum Foo: int { 20 case Bar = 1; 21 case Baz = 2; 22 case Beep = 3; 23} 24 25var_dump(Foo::tryFrom(1)); 26var_dump(Foo::tryFrom(2)); 27var_dump(Foo::tryFrom(3)); 28var_dump(Foo::tryFrom(4)); 29 30?> 31--EXPECT-- 32enum(Suit::Hearts) 33enum(Suit::Diamonds) 34enum(Suit::Clubs) 35enum(Suit::Spades) 36NULL 37enum(Foo::Bar) 38enum(Foo::Baz) 39enum(Foo::Beep) 40NULL 41
