Online PHP editor | perf for qg7ie

<?php function array_pick(array $array, bool $weighted = false) { $weight = function($value, int $weight = 1){ $item = new class($value, $weight){ public function __construct($value, int $weight){ $this->value = $value; $this->weight = $weight; } }; return $item; }; foreach($array as $key => $value){ if($weighted){ $items[] = $weight($key, $value); } else { $items[] = $weight($value); } } $max = array_reduce($items, function($c, $i){ $c += $i->weight; return $c; }); $rand = rand(1, $max); foreach($items as $item) { $rand -= $item->weight; if ($rand <= 0) { return $item->value; } } } $array = str_split('qwertyuiopasdfghjklzxcvbnm'); var_dump(array_pick($array));

Version	System time (s)	User time (s)	Memory (MiB)
7.2.2	0.012	0.011	17.77
7.2.1	0.009	0.013	18.04
7.2.0	0.012	0.012	18.00
7.1.14	0.012	0.010	16.95
7.1.13	0.009	0.011	16.84
7.1.12	0.009	0.009	16.73
7.1.11	0.006	0.014	16.23
7.1.10	0.012	0.014	16.10
7.1.9	0.009	0.011	16.25
7.1.8	0.010	0.009	16.00
7.1.7	0.010	0.010	15.29
7.1.6	0.226	0.013	33.21
7.1.5	0.032	0.011	32.93
7.1.4	0.023	0.015	32.66
7.1.3	0.028	0.014	32.69
7.1.2	0.052	0.012	33.00
7.1.1	0.010	0.013	14.67
7.1.0	0.005	0.013	14.82

Version

System time (s)

User time (s)

Memory (MiB)

7.2.2

0.012

0.011

17.77

7.2.1

0.009

0.013

18.04

7.2.0

0.012

18.00

7.1.14

0.012

0.010

16.95

7.1.13

0.009

0.011

16.84

7.1.12

0.009

16.73

7.1.11

0.006

0.014

16.23

7.1.10

0.012

0.014

16.10

7.1.9

0.009

0.011

16.25

7.1.8

0.010

0.009

16.00

7.1.7

0.010

15.29

7.1.6

0.226

0.013

33.21

7.1.5

0.032

0.011

32.93

7.1.4

0.023

0.015

32.66

7.1.3

0.028

0.014

32.69

7.1.2

0.052

0.012

33.00

7.1.1

0.010

0.013

14.67

7.1.0

0.005

0.013

14.82