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<?php enum E: string { case A = 'a'; case B = 'b'; case C = 'c'; case D = 'd'; } var_dump( 'a' > 'b', 'a' < 'b', E::A > E::B, E::A < E::B, E::A <=> E::B, E::B <=> E::A, ); $x = [ E::D, E::C, E::A, E::B, ]; usort($x, fn ($a, $b) => $a <=> $b); var_dump($x); usort($x, fn ($a, $b) => $a <=> $b); var_dump($x);
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.23, 8.4.1 - 8.4.10
bool(false) bool(true) bool(false) bool(false) int(1) int(1) array(4) { [0]=> enum(E::B) [1]=> enum(E::C) [2]=> enum(E::A) [3]=> enum(E::D) } array(4) { [0]=> enum(E::D) [1]=> enum(E::C) [2]=> enum(E::A) [3]=> enum(E::B) }
preferences:
47.26 ms | 407 KiB | 5 Q