Online PHP editor | perf for fJgLA

<?php interface Subject { // valid return types public function int(): int; public function bool(): bool; public function array(): array; public function float(): float; public function string(): string; public function iterable(): iterable; public function callable(): callable; public function void(): void; public function object(): object; public function mixed(): mixed; // invalid return types public function self(): self; public function integer(): integer; public function boolean(): boolean; public function double(): double; public function resource(): resource; } interface Subject2 { // valid return types PUBLIC FUNCTION INT(): INT; PUBLIC FUNCTION BOOL(): BOOL; PUBLIC FUNCTION ARRAY(): ARRAY; PUBLIC FUNCTION FLOAT(): FLOAT; PUBLIC FUNCTION STRING(): STRING; PUBLIC FUNCTION ITERABLE(): ITERABLE; PUBLIC FUNCTION CALLABLE(): CALLABLE; PUBLIC FUNCTION VOID(): VOID; PUBLIC FUNCTION OBJECT(): OBJECT; PUBLIC FUNCTION MIXED(): MIXED; PUBLIC FUNCTION SELF(): SELF; // invalid return types PUBLIC FUNCTION INTEGER(): INTEGER; PUBLIC FUNCTION BOOLEAN(): BOOLEAN; PUBLIC FUNCTION DOUBLE(): DOUBLE; PUBLIC FUNCTION RESOURCE(): RESOURCE; } test(Subject::class); test(Subject2::class); /** * @param class-string $class */ function test(string $class): void { $result = []; $ref = new ReflectionClass($class); foreach ($ref->getMethods() as $ref_method) { $name = $ref_method->getName(); $type = $ref_method->getReturnType(); $is_valid = $type instanceof ReflectionNamedType && $type->isBuiltin(); $key = $is_valid ? 'valid' : 'invalid'; $type_name = $type instanceof ReflectionNamedType ? $type->getName() : null; if ($type_name && $name !== $type_name) { $name = "{$name} -> {$type_name}"; } $result[$key][] = $name; } echo $class, ' ', json_encode($result, JSON_PRETTY_PRINT), PHP_EOL; }

Version	System time (s)	User time (s)	Memory (MiB)
8.3.14	0.003	0.006	17.27
8.3.13	0.004	0.004	18.48
8.3.12	0.009	0.006	20.64
8.3.11	0.003	0.005	16.75
8.3.10	0.005	0.005	18.72
8.3.9	0.004	0.004	26.77
8.3.8	0.006	0.003	18.68
8.3.7	0.012	0.003	16.63
8.3.6	0.004	0.015	18.68
8.3.5	0.007	0.010	18.13
8.3.4	0.014	0.003	22.09
8.3.3	0.004	0.011	18.84
8.3.2	0.000	0.008	24.18
8.3.1	0.003	0.005	24.66
8.3.0	0.008	0.000	26.16
8.2.25	0.000	0.008	16.89
8.2.24	0.003	0.006	17.38
8.2.23	0.004	0.004	20.94
8.2.22	0.008	0.000	37.54
8.2.21	0.003	0.005	26.77
8.2.20	0.007	0.003	18.41
8.2.19	0.015	0.000	16.88
8.2.18	0.012	0.003	25.92
8.2.17	0.006	0.010	19.13
8.2.16	0.010	0.007	22.96
8.2.15	0.000	0.007	25.66
8.2.14	0.006	0.003	24.66
8.2.13	0.000	0.007	26.16
8.2.12	0.000	0.008	21.14
8.2.11	0.003	0.006	20.40
8.2.10	0.004	0.007	20.27
8.1.30	0.006	0.003	18.38
8.1.29	0.006	0.003	30.84
8.1.28	0.011	0.007	25.92
8.1.27	0.005	0.003	23.92
8.1.26	0.003	0.006	26.35
8.1.25	0.004	0.004	28.09
8.1.24	0.003	0.006	20.24
8.1.23	0.005	0.005	18.63
8.1.5	0.013	0.005	17.48
8.0.18	0.007	0.007	16.93
8.0.10	0.003	0.006	16.79