Online PHP editor | perf for XFnjS

<?php function xrange($start, $end, $step = 1) { while ($start <= $end) { yield $start; $start += $step; } } function reduce(Generator $iterator, Callable $callback, $initial = null) { $result = $initial; foreach($iterator as $value) { $result = $callback($result, $value); } return $result; } $start = microtime(true); reduce(xrange(1, 140000), function($r, $v) {return $r + $v;}, 0); $byGen = microtime(true) - $start; $start =microtime(true); array_reduce(range(1,140000), function($r, $v) {return $r + $v;}, 0); $byNormal = microtime(true) - $start; $percent = ($byGen - $byNormal)*100/$byNormal; printf("Generator is %s than normal function %.2f%%.\n", ($byGen > $byNormal ? 'Slower' : 'Faster'), ($percent));

Version	System time (s)	User time (s)	Memory (MiB)
7.2.0	0.007	0.036	25.12
7.1.12	0.010	0.036	24.68
7.1.11	0.006	0.042	24.34
7.1.10	0.003	0.041	24.27
7.1.9	0.006	0.036	23.96
7.1.8	0.013	0.053	23.97
7.1.7	0.009	0.037	23.10
7.1.6	0.026	0.030	41.34
7.1.5	0.016	0.039	41.17
7.1.4	0.011	0.048	40.47
7.1.3	0.020	0.050	40.54
7.1.2	0.028	0.060	40.58
7.1.1	0.013	0.056	22.57
7.1.0	0.007	0.049	22.61

Version

System time (s)

User time (s)

Memory (MiB)

7.2.0

0.007

0.036

25.12

7.1.12

0.010

0.036

24.68

7.1.11

0.006

0.042

24.34

7.1.10

0.003

0.041

24.27

7.1.9

0.006

0.036

23.96

7.1.8

0.013

0.053

23.97

7.1.7

0.009

0.037

23.10

7.1.6

0.026

0.030

41.34

7.1.5

0.016

0.039

41.17

7.1.4

0.011

0.048

40.47

7.1.3

0.020

0.050

40.54

7.1.2

0.028

0.060

40.58

7.1.1

0.013

0.056

22.57

7.1.0

0.007

0.049

22.61