Online PHP editor | perf for tLEP5

<?php // Illustrates: $fiber->throw($exception) resumes the fiber and raises the // exception exactly where Fiber::suspend() paused it, not in the caller's scope. $fiber = new Fiber(function (): void { echo "fiber: starting\n"; try { $value = Fiber::suspend('paused, waiting for input'); echo "fiber: resumed normally with '{$value}'\n"; } catch (RuntimeException $e) { // This ordinary try/catch, wrapped around suspend(), catches the // exception injected by Fiber::throw() -- no special API needed. echo "fiber: caught injected exception: '{$e->getMessage()}'\n"; } echo "fiber: finishing\n"; }); echo "main: getCurrent() outside any fiber is: "; var_dump(Fiber::getCurrent()); $suspendedValue = $fiber->start(); echo "main: fiber suspended with '{$suspendedValue}'\n"; // This does NOT throw here, in main's scope. It resumes the fiber and the // exception surfaces at the suspend() call above, inside the fiber's body. $fiber->throw(new RuntimeException('something went wrong')); echo "main: fiber finished? " . ($fiber->isTerminated() ? 'yes' : 'no') . "\n"; // Starting an already-started (and now terminated) fiber is not a silent // no-op: it throws a FiberError. try { $fiber->start(); } catch (FiberError $e) { echo "main: caught FiberError: '{$e->getMessage()}'\n"; }

Version	System time (s)	User time (s)	Memory (MiB)
8.5.9	0.006	0.002	17.00
8.5.8	0.005	0.004	18.66
8.5.7	0.022	0.011	16.64
8.4.24	0.014	0.009	19.73
8.4.23	0.007	0.004	19.60
8.4.22	0.005	0.005	19.49
8.4.9	0.005	0.005	18.02
8.3.33	0.010	0.012	18.60
8.3.32	0.003	0.006	18.60
8.3.18	0.005	0.005	16.68
8.3.5	0.007	0.003	16.78
8.2.32	0.008	0.003	18.21