<?php
$x = str_repeat('foo', 500000);
$y = 'bar';
$before = microtime(1);
$x . $y;
printf('%f'."\n", microtime(1) - $before);
$x = str_repeat('foo', 500000);
$y = 'bar';
$before = microtime(1);
$x .= $y;
printf('%f'."\n", microtime(1) - $before);
- Output for 7.2.0
- 0.000273
0.000001
- Output for 7.1.7
- 0.000267
0.000005
- Output for 7.1.6
- 0.000633
0.000008
- Output for 7.1.5
- 0.462053
0.000009
- Output for 7.1.0
- 0.000361
0.000001
- Output for 7.0.20
- 0.003305
0.000008
- Output for 7.0.14
- 0.000365
0.000001
- Output for 7.0.10
- 0.001280
0.000001
- Output for 7.0.9
- 0.000985
0.000001
- Output for 7.0.8
- 0.001205
0.000001
- Output for 7.0.7
- 0.000958
0.000001
- Output for 7.0.6
- 0.001023
0.000001
- Output for 7.0.5
- 0.001084
0.000001
- Output for 7.0.4
- 0.000466
0.000001
- Output for 7.0.3
- 0.000477
0.000001
- Output for 5.5.9, 7.0.2
- 0.000513
0.000001
- Output for 7.0.1
- 0.000438
0.000001
- Output for 7.0.0
- 0.000480
0.000001
- Output for 5.6.28
- 0.000625
0.000002
- Output for 5.6.25
- 0.000907
0.000002
- Output for 5.6.24
- 0.000758
0.000001
- Output for 5.6.23
- 0.000902
0.000002
- Output for 5.6.22
- 0.000587
0.000001
- Output for 5.6.21
- 0.000791
0.000002
- Output for 5.6.20
- 0.000762
0.000001
- Output for 5.6.19
- 0.000698
0.000001
- Output for 5.6.18
- 0.000835
0.000001
- Output for 5.6.17
- 0.000736
0.000001
- Output for 5.6.16
- 0.000856
0.000002
- Output for 5.6.15
- 0.001009
0.000002
- Output for 5.6.14
- 0.000790
0.000002
- Output for 5.6.13
- 0.000645
0.000002
- Output for 5.6.12
- 0.000846
0.000001
- Output for 5.6.11
- 0.000928
0.000002
- Output for 5.6.10
- 0.000821
0.000002
- Output for 5.6.9
- 0.000791
0.000001
- Output for 5.6.8
- 0.000832
0.000002
- Output for 5.6.7
- 0.000873
0.000002
- Output for 5.6.6
- 0.000890
0.000003
- Output for 5.6.5
- 0.000818
0.000001
- Output for 5.6.4
- 0.000739
0.000002
- Output for 5.6.3
- 0.000561
0.000001
- Output for 5.6.2
- 0.000559
0.000001
- Output for 5.6.1
- 0.000518
0.000001
- Output for 5.6.0
- 0.000573
0.000001
- Output for 5.5.38
- 0.000900
0.000002
- Output for 5.5.37
- 0.000670
0.000002
- Output for 5.5.36
- 0.000871
0.000002
- Output for 5.5.35
- 0.000548
0.000002
- Output for 5.5.34
- 0.000780
0.000002
- Output for 5.5.33
- 0.000853
0.000001
- Output for 5.5.32
- 0.000760
0.000002
- Output for 5.5.21, 5.5.27, 5.5.31
- 0.000778
0.000002
- Output for 5.5.30
- 0.000665
0.000001
- Output for 5.5.29
- 0.000894
0.000002
- Output for 5.2.11, 5.5.28
- 0.000781
0.000001
- Output for 5.5.26
- 0.000920
0.000002
- Output for 5.5.25
- 0.000695
0.000001
- Output for 5.5.24
- 0.000824
0.000001
- Output for 5.5.23
- 0.000866
0.000001
- Output for 5.5.22
- 0.000816
0.000001
- Output for 5.5.20
- 0.000563
0.000001
- Output for 5.5.19
- 0.000568
0.000001
- Output for 5.5.18
- 0.000534
0.000001
- Output for 5.5.16
- 0.000501
0.000001
- Output for 5.5.15
- 0.000514
0.000001
- Output for 5.5.14
- 0.000652
0.000001
- Output for 5.5.13
- 0.000508
0.000001
- Output for 5.5.12
- 0.000797
0.000001
- Output for 5.5.11
- 0.000621
0.000001
- Output for 5.5.10
- 0.000625
0.000001
- Output for 5.5.8
- 0.000499
0.000001
- Output for 5.5.7
- 0.000500
0.000001
- Output for 5.5.6
- 0.000648
0.000002
- Output for 5.5.5
- 0.000592
0.000001
- Output for 5.5.4
- 0.000594
0.000001
- Output for 5.3.27, 5.3.29, 5.5.3
- 0.000503
0.000001
- Output for 5.5.2
- 0.000626
0.000001
- Output for 5.5.1
- 0.000507
0.000001
- Output for 5.4.11, 5.5.0
- 0.000502
0.000001
- Output for 5.4.45
- 0.000829
0.000001
- Output for 5.4.44
- 0.000917
0.000002
- Output for 5.4.43
- 0.000822
0.000001
- Output for 5.4.42
- 0.000759
0.000001
- Output for 5.4.41
- 0.000844
0.000001
- Output for 5.4.40
- 0.000807
0.000002
- Output for 5.4.39
- 0.000781
0.000002
- Output for 5.4.38
- 0.000892
0.000002
- Output for 5.4.37
- 0.000864
0.000002
- Output for 5.4.36
- 0.000702
0.000001
- Output for 5.4.35
- 0.000725
0.000001
- Output for 5.4.24, 5.4.34
- 0.000504
0.000001
- Output for 5.3.24, 5.4.22, 5.4.32
- 0.000506
0.000001
- Output for 5.4.31
- 0.000516
0.000001
- Output for 5.4.30
- 0.000537
0.000000
- Output for 5.4.29
- 0.000588
0.000001
- Output for 5.4.28
- 0.000521
0.000001
- Output for 5.4.27
- 0.000706
0.000001
- Output for 5.4.26
- 0.000553
0.000001
- Output for 5.4.25
- 0.000507
0.000000
- Output for 5.4.23
- 0.000602
0.000001
- Output for 5.4.14, 5.4.21
- 0.000512
0.000001
- Output for 5.4.20
- 0.000648
0.000001
- Output for 5.4.19
- 0.000562
0.000001
- Output for 5.4.18
- 0.000505
0.000001
- Output for 5.4.17
- 0.000503
0.000000
- Output for 5.4.16
- 0.000610
0.000001
- Output for 5.4.15
- 0.000536
0.000001
- Output for 5.4.13
- 0.000512
0.000000
- Output for 5.4.12
- 0.000745
0.000001
- Output for 5.4.10
- 0.000691
0.000001
- Output for 5.4.9
- 0.000775
0.000002
- Output for 5.4.8
- 0.000947
0.000002
- Output for 5.4.7
- 0.000912
0.000001
- Output for 5.4.6
- 0.000800
0.000002
- Output for 5.4.5
- 0.000757
0.000002
- Output for 5.4.4
- 0.000857
0.000001
- Output for 5.4.3
- 0.000823
0.000001
- Output for 5.4.2
- 0.000820
0.000002
- Output for 5.4.1
- 0.000817
0.000002
- Output for 5.4.0
- 0.000859
0.000001
- Output for 5.3.28
- 0.000498
0.000000
- Output for 5.3.26
- 0.000564
0.000002
- Output for 5.3.25
- 0.000599
0.000001
- Output for 5.3.23
- 0.000500
0.000000
- Output for 5.3.22
- 0.000590
0.000001
- Output for 5.3.21
- 0.000504
0.000000
- Output for 5.3.20
- 0.000520
0.000001
- Output for 5.3.19
- 0.000828
0.000001
- Output for 5.3.18
- 0.000826
0.000002
- Output for 5.3.17
- 0.000878
0.000002
- Output for 5.3.16
- 0.000793
0.000001
- Output for 5.3.15
- 0.000918
0.000002
- Output for 5.3.14
- 0.000785
0.000002
- Output for 5.3.13
- 0.000620
0.000001
- Output for 5.3.6, 5.3.12
- 0.000790
0.000001
- Output for 5.3.11
- 0.000764
0.000001
- Output for 5.3.10
- 0.000838
0.000001
- Output for 5.3.9
- 0.000811
0.000001
- Output for 5.3.8
- 0.000858
0.000001
- Output for 5.3.7
- 0.000785
0.000001
- Output for 5.3.5
- 0.000817
0.000001
- Output for 5.3.4
- 0.000649
0.000001
- Output for 5.3.3
- 0.000874
0.000001
- Output for 5.3.2
- 0.000589
0.000001
- Output for 5.2.0, 5.3.1
- 0.000860
0.000001
- Output for 5.3.0
- 0.000907
0.000001
- Output for 5.2.17
- 0.000929
0.000001
- Output for 5.2.16
- 0.000869
0.000002
- Output for 5.2.15
- 0.000825
0.000002
- Output for 5.2.14
- 0.001005
0.000002
- Output for 5.2.13
- 0.000576
0.000001
- Output for 5.2.12
- 0.000970
0.000001
- Output for 5.2.10
- 0.000953
0.000002
- Output for 5.2.9
- 0.000897
0.000001
- Output for 5.2.8
- 0.000915
0.000002
- Output for 5.2.7
- 0.000890
0.000002
- Output for 5.2.6
- 0.000739
0.000001
- Output for 5.2.5
- 0.000920
0.000001
- Output for 5.2.4
- 0.000981
0.000002
- Output for 5.2.3
- 0.000720
0.000001
- Output for 5.2.2
- 0.000986
0.000002
- Output for 5.2.1
- 0.000707
0.000001
- Output for 5.1.6
- 0.000973
0.000002
- Output for 5.1.5
- 0.000992
0.000001
- Output for 5.1.4
- 0.000956
0.000002
- Output for 5.1.3
- 0.000899
0.000002
- Output for 5.1.2
- 0.000996
0.000002
- Output for 5.1.1
- 0.000834
0.000001
- Output for 5.1.0
- 0.000935
0.000002
- Output for 5.0.5
- 0.001034
0.000003
- Output for 5.0.4
- 0.001100
0.000002
- Output for 5.0.3
- 0.000829
0.000002
- Output for 5.0.2
- 0.000942
0.000002
- Output for 5.0.1
- 0.001020
0.000002
- Output for 5.0.0
- 0.000937
0.000002
- Output for 4.4.9
- 0.001033
0.000004
- Output for 4.4.8
- 0.001047
0.000004
- Output for 4.4.7
- 0.001072
0.000005
- Output for 4.4.6
- 0.001081
0.000005
- Output for 4.4.5
- 0.001077
0.000005
- Output for 4.4.4
- 0.001065
0.000004
- Output for 4.4.3
- 0.001005
0.000004
- Output for 4.4.2
- 0.001061
0.000004
- Output for 4.4.1
- 0.001027
0.000004
- Output for 4.4.0
- 0.000762
0.000002
- Output for 4.3.11
- 0.000757
0.000003
- Output for 4.3.10
- 0.000825
0.000004
- Output for 4.3.9
- 0.000980
0.000005
- Output for 4.3.8
- 0.000967
0.000006
- Output for 4.3.7
- 0.001031
0.000006
- Output for 4.3.6
- 0.001059
0.000005
- Output for 4.3.5
- 0.000951
0.000004
- Output for 4.3.4
- 0.000988
0.000004
- Output for 4.3.3
- 0.001023
0.000005
- Output for 4.3.2
- 0.000683
0.000003
- Output for 4.3.1
- 0.001076
0.000005
- Output for 4.3.0
- 0.000962
0.000005
preferences:
176.55 ms | 401 KiB | 216 Q