Online PHP editor | perf for aguPF

<?php function returnTime(callable $function, int $repeat = 50) { $tests = []; for ($i = 0; $i < $repeat; ++$i) { $startTime = microtime(true); $function(); $endTime = microtime(true); $tests[] = $endTime - $startTime; } // Representing the average return 1000 * array_sum($tests) / $repeat; } $array = array_fill(0, 200000, 1); echo "Duration of array_slice() + key(): ", returnTime(function() use ($array) { $lastKey = key(array_slice($array, -1, 1, true)); }); echo PHP_EOL; echo "Duration of end() + key(): " , returnTime(function() use ($array){ end($array); $lastKey = key($array); }); echo PHP_EOL; echo "Duration of array_key_last(): " , returnTime(function() use ($array){ $lastKey = array_key_last($array); }); echo PHP_EOL; echo "Duration of array_keys() + end(): " , returnTime(function() use ($array){ $keys = array_keys($array); $last = end($keys); }); echo PHP_EOL; echo "Duration of array_reverse() + key(): " , returnTime(function() use ($array){ $key = key(array_reverse($array)); }); echo PHP_EOL; echo "Duration of array_slice() + foreach(): " , returnTime(function() use ($array){ foreach (array_slice($array, -1, 1, true) as $key => $value); });

Version	System time (s)	User time (s)	Memory (MiB)
8.2.9	0.259	0.070	23.71
7.3.7	0.539	0.260	26.71
7.3.6	0.352	0.316	26.96
7.3.5	0.521	0.289	26.82
7.3.4	0.507	0.265	26.82
7.3.3	0.487	0.245	26.48
7.3.2	0.102	0.253	32.29
7.3.1	0.096	0.274	32.45
7.3.0	0.149	0.258	32.51
7.2.20	0.174	0.120	27.20
7.2.19	0.160	0.113	27.11
7.2.18	0.191	0.087	27.07
7.2.17	0.179	0.100	26.85
7.2.16	0.189	0.116	27.03
7.2.15	0.042	0.082	32.48
7.2.14	0.058	0.105	32.87
7.2.13	0.050	0.123	32.70
7.2.12	0.043	0.113	32.68
7.2.11	0.038	0.099	32.84
7.2.10	0.053	0.100	32.68
7.2.9	0.033	0.107	32.60
7.2.8	0.044	0.105	32.75
7.2.7	0.052	0.100	32.64
7.2.6	0.037	0.096	32.73
7.2.5	0.054	0.080	32.96
7.2.4	0.027	0.106	32.54
7.2.3	0.048	0.092	32.43
7.2.2	0.028	0.115	32.34
7.2.1	0.042	0.091	32.70
7.2.0	0.050	0.109	32.51
7.1.30	0.689	0.107	29.45
7.1.29	0.256	0.090	31.72
7.1.28	0.049	0.096	31.88
7.1.27	0.055	0.104	31.59
7.1.26	0.044	0.109	31.76
7.1.25	0.045	0.094	31.36

Version

System time (s)

User time (s)

Memory (MiB)

8.2.9

0.259

0.070

23.71

7.3.7

0.539

0.260

26.71

7.3.6

0.352

0.316

26.96

7.3.5

0.521

0.289

26.82

7.3.4

0.507

0.265

26.82

7.3.3

0.487

0.245

26.48

7.3.2

0.102

0.253

32.29

7.3.1

0.096

0.274

32.45

7.3.0

0.149

0.258

32.51

7.2.20

0.174

0.120

27.20

7.2.19

0.160

0.113

27.11

7.2.18

0.191

0.087

27.07

7.2.17

0.179

0.100

26.85

7.2.16

0.189

0.116

27.03

7.2.15

0.042

0.082

32.48

7.2.14

0.058

0.105

32.87

7.2.13

0.050

0.123

32.70

7.2.12

0.043

0.113

32.68

7.2.11

0.038

0.099

32.84

7.2.10

0.053

0.100

32.68

7.2.9

0.033

0.107

32.60

7.2.8

0.044

0.105

32.75

7.2.7

0.052

0.100

32.64

7.2.6

0.037

0.096

32.73

7.2.5

0.054

0.080

32.96

7.2.4

0.027

0.106

32.54

7.2.3

0.048

0.092

32.43

7.2.2

0.028

0.115

32.34

7.2.1

0.042

0.091

32.70

7.2.0

0.050

0.109

32.51

7.1.30

0.689

0.107

29.45

7.1.29

0.256

0.090

31.72

7.1.28

0.049

0.096

31.88

7.1.27

0.055

0.104

31.59

7.1.26

0.044

0.109

31.76

7.1.25

0.045

0.094

31.36