<?php
$x = 129;
$y = 1;
$m = microtime(true);
$y = 1 << ceil(log($x, 2));
echo (microtime(true) - $m), "\n\r";
$y = 1;
$m = microtime(true);
while ($y < $x) {
$y = $y <<1;
}
echo microtime(true) - $m;
- Output for 7.2.0
- 1.8119812011719E-5
0
- Output for 7.1.7
- 1.8119812011719E-5
1.9073486328125E-6
- Output for 7.1.6
- 3.4093856811523E-5
6.1988830566406E-6
- Output for 7.1.5
- 4.887580871582E-5
6.9141387939453E-6
- Output for 5.4.18, 7.1.0
- 2.0980834960938E-5
9.5367431640625E-7
- Output for 7.0.20
- 2.0980834960938E-5
1.1920928955078E-6
- Output for 7.0.14
- 2.3126602172852E-5
9.5367431640625E-7
- Output for 5.4.12, 5.5.30, 5.5.33, 5.6.0, 7.0.7
- 2.6941299438477E-5
9.5367431640625E-7
- Output for 5.3.16, 5.5.34, 7.0.6
- 2.8133392333984E-5
9.5367431640625E-7
- Output for 5.6.4, 7.0.5
- 3.2901763916016E-5
9.5367431640625E-7
- Output for 5.5.4, 5.5.20, 7.0.4
- 3.1948089599609E-5
9.5367431640625E-7
- Output for 5.3.22, 5.6.19, 7.0.3
- 2.9087066650391E-5
2.1457672119141E-6
- Output for 7.0.2
- 2.5033950805664E-5
0
- Output for 7.0.1
- 3.4093856811523E-5
0
- Output for 7.0.0
- 2.8133392333984E-5
2.1457672119141E-6
- Output for 5.4.26, 5.5.15, 5.5.32, 5.6.28
- 2.8848648071289E-5
9.5367431640625E-7
- Output for 5.5.13, 5.6.22
- 3.2901763916016E-5
1.9073486328125E-6
- Output for 5.6.21
- 2.4795532226562E-5
9.5367431640625E-7
- Output for 5.4.34, 5.6.20
- 3.504753112793E-5
1.1920928955078E-6
- Output for 5.4.8, 5.5.2, 5.6.18
- 2.7894973754883E-5
9.5367431640625E-7
- Output for 5.6.17
- 3.0040740966797E-5
1.9073486328125E-6
- Output for 5.3.24, 5.4.0, 5.4.19, 5.5.3, 5.6.13, 5.6.16
- 3.0994415283203E-5
9.5367431640625E-7
- Output for 5.3.27, 5.4.10, 5.6.15
- 2.598762512207E-5
2.1457672119141E-6
- Output for 5.3.14, 5.4.16, 5.4.23, 5.6.14
- 2.288818359375E-5
9.5367431640625E-7
- Output for 5.6.12
- 2.7179718017578E-5
1.1920928955078E-6
- Output for 5.6.11
- 2.6941299438477E-5
2.1457672119141E-6
- Output for 5.4.1, 5.4.15, 5.4.27, 5.4.42, 5.5.26, 5.6.10
- 3.0040740966797E-5
9.5367431640625E-7
- Output for 5.6.9
- 3.6001205444336E-5
2.1457672119141E-6
- Output for 5.3.5, 5.3.7, 5.3.26, 5.5.5, 5.5.21, 5.6.8
- 3.0994415283203E-5
1.9073486328125E-6
- Output for 5.4.39, 5.6.7
- 2.1934509277344E-5
9.5367431640625E-7
- Output for 5.6.6
- 2.8848648071289E-5
2.1457672119141E-6
- Output for 5.3.21, 5.3.23, 5.6.5
- 2.9802322387695E-5
1.9073486328125E-6
- Output for 5.6.3
- 2.288818359375E-5
1.1920928955078E-6
- Output for 5.6.2
- 3.4093856811523E-5
2.1457672119141E-6
- Output for 5.5.28, 5.6.1
- 2.9087066650391E-5
9.5367431640625E-7
- Output for 5.4.29, 5.5.36
- 3.0040740966797E-5
2.1457672119141E-6
- Output for 5.5.35
- 3.2186508178711E-5
1.9073486328125E-6
- Output for 5.3.15, 5.4.21, 5.4.45, 5.5.12, 5.5.19, 5.5.24, 5.5.31
- 2.4080276489258E-5
9.5367431640625E-7
- Output for 5.4.5, 5.5.29
- 2.5033950805664E-5
9.5367431640625E-7
- Output for 5.5.27
- 2.3841857910156E-5
1.1920928955078E-6
- Output for 5.4.2, 5.4.30, 5.4.35, 5.5.9, 5.5.14, 5.5.25
- 3.0994415283203E-5
1.1920928955078E-6
- Output for 5.2.3, 5.5.23
- 2.3126602172852E-5
1.9073486328125E-6
- Output for 5.3.12, 5.4.20, 5.4.25, 5.5.22
- 2.8133392333984E-5
1.9073486328125E-6
- Output for 5.4.6, 5.4.28, 5.5.18
- 2.598762512207E-5
9.5367431640625E-7
- Output for 5.5.16
- 3.6954879760742E-5
1.1920928955078E-6
- Output for 5.4.24, 5.5.11
- 2.4080276489258E-5
1.1920928955078E-6
- Output for 5.2.6, 5.5.10
- 2.598762512207E-5
1.9073486328125E-6
- Output for 5.3.20, 5.5.1, 5.5.8
- 3.0994415283203E-5
2.1457672119141E-6
- Output for 5.5.7
- 3.504753112793E-5
1.9073486328125E-6
- Output for 5.5.6
- 2.9087066650391E-5
1.9073486328125E-6
- Output for 5.3.10, 5.3.13, 5.4.17, 5.5.0
- 3.1948089599609E-5
1.9073486328125E-6
- Output for 5.4.44
- 3.3855438232422E-5
9.5367431640625E-7
- Output for 5.4.43
- 3.2901763916016E-5
1.1920928955078E-6
- Output for 5.3.17, 5.4.41
- 3.3140182495117E-5
2.1457672119141E-6
- Output for 5.4.40
- 2.2172927856445E-5
1.9073486328125E-6
- Output for 5.4.38
- 2.2172927856445E-5
9.5367431640625E-7
- Output for 5.4.37
- 3.3855438232422E-5
1.9073486328125E-6
- Output for 5.3.19, 5.4.36
- 2.6941299438477E-5
1.9073486328125E-6
- Output for 5.4.32
- 3.1948089599609E-5
2.1457672119141E-6
- Output for 5.4.31
- 3.3140182495117E-5
1.9073486328125E-6
- Output for 5.3.1, 5.4.22
- 3.504753112793E-5
9.5367431640625E-7
- Output for 5.4.14
- 2.598762512207E-5
1.1920928955078E-6
- Output for 5.4.13
- 3.6001205444336E-5
1.1920928955078E-6
- Output for 5.4.11
- 3.6001205444336E-5
9.5367431640625E-7
- Output for 5.4.9
- 4.4107437133789E-5
2.1457672119141E-6
- Output for 5.4.7
- 3.0040740966797E-5
1.1920928955078E-6
- Output for 5.4.4
- 2.288818359375E-5
0
- Output for 5.4.3
- 3.1948089599609E-5
1.1920928955078E-6
- Output for 5.3.29
- 2.8133392333984E-5
1.1920928955078E-6
- Output for 5.3.28
- 4.1961669921875E-5
3.0994415283203E-6
- Output for 5.3.25
- 3.2186508178711E-5
2.1457672119141E-6
- Output for 5.3.18
- 3.3140182495117E-5
2.8610229492188E-6
- Output for 5.3.11
- 3.8862228393555E-5
3.0994415283203E-6
- Output for 5.3.9
- 2.7894973754883E-5
2.1457672119141E-6
- Output for 5.3.8
- 2.9802322387695E-5
9.5367431640625E-7
- Output for 5.3.6
- 2.9087066650391E-5
1.1920928955078E-6
- Output for 5.3.4
- 3.4093856811523E-5
1.9073486328125E-6
- Output for 5.3.3
- 2.4080276489258E-5
1.9073486328125E-6
- Output for 5.2.7, 5.2.9, 5.3.0, 5.3.2
- 2.0980834960938E-5
2.1457672119141E-6
- Output for 5.2.17
- 3.504753112793E-5
2.1457672119141E-6
- Output for 5.2.16
- 3.0994415283203E-5
3.0994415283203E-6
- Output for 5.2.15
- 3.2901763916016E-5
3.0994415283203E-6
- Output for 5.2.14
- 2.288818359375E-5
2.8610229492188E-6
- Output for 5.2.10, 5.2.13
- 2.0027160644531E-5
2.1457672119141E-6
- Output for 5.2.2, 5.2.12
- 1.978874206543E-5
1.9073486328125E-6
- Output for 5.2.11
- 2.598762512207E-5
2.8610229492188E-6
- Output for 5.2.8
- 2.0027160644531E-5
2.8610229492188E-6
- Output for 5.2.5
- 2.3126602172852E-5
2.1457672119141E-6
- Output for 5.2.4
- 2.0027160644531E-5
1.9073486328125E-6
- Output for 5.2.1
- 2.0027160644531E-05
2.1457672119141E-06
- Output for 5.2.0
- 2.9087066650391E-05
3.0994415283203E-06
- Output for 5.1.6
- 2.598762512207E-05
9.5367431640625E-07
- Output for 5.1.5
- 3.0994415283203E-05
1.9073486328125E-06
- Output for 5.1.4
- 3.4093856811523E-05
2.8610229492188E-06
- Output for 5.1.3
- 2.3126602172852E-05
3.0994415283203E-06
- Output for 5.0.1, 5.1.2
- 2.0027160644531E-05
1.9073486328125E-06
- Output for 5.1.1
- 2.0980834960938E-05
9.5367431640625E-07
- Output for 5.1.0
- 2.0980834960938E-05
1.9073486328125E-06
- Output for 5.0.5
- 3.504753112793E-05
3.814697265625E-06
- Output for 5.0.4
- 2.7894973754883E-05
4.0531158447266E-06
- Output for 5.0.3
- 1.978874206543E-05
4.0531158447266E-06
- Output for 5.0.2
- 2.1934509277344E-05
3.0994415283203E-06
- Output for 5.0.0
- 1.9073486328125E-05
1.9073486328125E-06
- Output for 4.3.10, 4.4.1, 4.4.9
- 2.4E-05
3E-06
- Output for 4.4.8
- 2.3E-05
3E-06
- Output for 4.4.7
- 2.2E-05
3E-06
- Output for 4.4.6
- 3.6E-05
5E-06
- Output for 4.4.5
- 3E-05
5E-06
- Output for 4.4.4
- 4E-05
4E-06
- Output for 4.3.7, 4.3.9, 4.4.3
- 3E-05
3E-06
- Output for 4.4.0, 4.4.2
- 2.6E-05
3E-06
- Output for 4.3.11
- 2.5E-05
3E-06
- Output for 4.3.8
- 4.4E-05
4E-06
- Output for 4.3.6
- 3.3E-05
3E-06
- Output for 4.3.5
- 3.8E-05
3E-06
- Output for 4.3.4
- 3.1E-05
5E-06
- Output for 4.3.3
- 2.8E-05
4E-06
- Output for 4.3.2
- 4.7E-05
5E-06
- Output for 4.3.0 - 4.3.1
- 3.4E-05
3E-06
preferences:
139.82 ms | 401 KiB | 208 Q