Online PHP editor | perf for sXXe8

<?php const SOMECONST = 'Const hello'; enum SomeEnum { case Hearts; case Diamonds; case Clubs; case Spades; } function SomeFunction() { } $SomeFunctionClosure = function() { }; $SomeFunctionFirstClassCallable = SomeFunction(...); $someFunctionClosureFromCallabe = Closure::fromCallable('SomeFunction'); class ShouldTypeError { public function __construct($returnValue) { if ($returnValue !== 'no-return') { if ($returnValue === '$this') { return $this; } elseif ($returnValue === 'no-return-value') { return; } elseif ($returnValue === 'void') { return void; } elseif ($returnValue === 'never') { return never; } return $returnValue; } } } $testcases = [ 'no-return', 'no-return-value', '$this', new ShouldTypeError('no-return'), SOMECONST, 'abc', 1, 1.23, null, true, false, ['a', 'b', 'c'], ['a' => 'a', 'b' => 'b', 'c' => 'c', 0 => 'Zero'], 'never', 'void', SomeEnum::Spades, function() { echo 'Hi'.PHP_EOL; }, $SomeFunctionClosure, $SomeFunctionFirstClassCallable, $someFunctionClosureFromCallabe, new DateTimeImmutable(), ]; foreach($testcases as $testcase) { echo "--------------[ TESTCASE ]--------------\n"; var_dump($testcase); echo "\n"; try { $didReturn = new ShouldTypeError($testcase); switch($testcase) { case 'no-return': echo "Success: without a return statement is always valid.\n"; break; case 'no-return-value': echo "Success: a return statement without a value is always valid.\n"; break; case '$this': echo "Dubious: return $this is dubious.\n"; echo "- it fullfills the return type, so it could be allowed.\n"; echo "- but returning anything from a constructor is nonsense, because it is discarded.\n"; echo " As shown by the third testcase new SomeTypeError('no-return').\n"; break; default: echo "Error: why is it not a return TypeError?\n"; break; } if (!($didReturn instanceof ShouldTypeError)) { echo "Failed to new a ShouldTypeError.\n"; } } catch (Throwable $ex) { echo "Success: throwable: ".$ex->getMessage()."\n"; } }

Version	System time (s)	User time (s)	Memory (MiB)
8.5.2	0.031	0.008	17.16
8.5.1	0.012	0.006	17.07
8.4.17	0.013	0.012	20.65
8.4.16	0.012	0.011	20.52
8.4.9	0.013	0.009	18.27
8.3.30	0.013	0.011	18.70
8.3.29	0.013	0.010	18.78
8.3.18	0.006	0.004	17.02
8.3.5	0.011	0.009	17.02