<?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 7.1.7
- 1.978874206543E-5
2.8610229492188E-6
- Output for 7.1.6
- 5.2213668823242E-5
7.1525573730469E-6
- Output for 7.1.5
- 3.8862228393555E-5
6.9141387939453E-6
- Output for 5.4.8, 5.4.14, 5.4.19, 5.6.0, 7.1.0
- 2.6941299438477E-5
9.5367431640625E-7
- Output for 7.0.20
- 1.8835067749023E-5
9.5367431640625E-7
- Output for 5.4.0, 7.0.14
- 2.5033950805664E-5
9.5367431640625E-7
- Output for 7.0.10
- 1.9073486328125E-5
9.5367431640625E-7
- Output for 7.0.9
- 2.0980834960938E-5
0
- Output for 5.6.24, 7.0.8
- 2.0980834960938E-5
1.1920928955078E-6
- Output for 5.4.23, 5.5.4, 5.5.6, 5.5.18, 7.0.1, 7.0.7
- 3.1948089599609E-5
9.5367431640625E-7
- Output for 5.5.21, 5.6.7, 7.0.6
- 2.8848648071289E-5
9.5367431640625E-7
- Output for 7.0.4 - 7.0.5
- 2.7894973754883E-5
9.5367431640625E-7
- Output for 5.5.25, 7.0.3
- 2.7894973754883E-5
1.1920928955078E-6
- Output for 5.5.20, 7.0.2
- 2.9802322387695E-5
1.1920928955078E-6
- Output for 7.0.0
- 3.0040740966797E-5
0
- Output for 5.6.28
- 2.8133392333984E-5
2.1457672119141E-6
- Output for 5.5.31, 5.6.23, 5.6.25
- 2.4080276489258E-5
9.5367431640625E-7
- Output for 5.5.15, 5.5.30, 5.6.6, 5.6.22
- 3.0040740966797E-5
1.9073486328125E-6
- Output for 5.4.18, 5.6.21
- 3.2901763916016E-5
1.1920928955078E-6
- Output for 5.3.16, 5.4.4, 5.4.31, 5.5.0, 5.5.14, 5.6.20
- 3.0040740966797E-5
2.1457672119141E-6
- Output for 5.2.15, 5.3.11, 5.3.22, 5.3.28 - 5.3.29, 5.5.3, 5.5.23, 5.6.8, 5.6.19
- 3.0994415283203E-5
1.9073486328125E-6
- Output for 5.6.18
- 2.0980834960938E-5
9.5367431640625E-7
- Output for 5.3.24, 5.4.38, 5.5.13, 5.6.17
- 3.0994415283203E-5
2.1457672119141E-6
- Output for 5.4.7, 5.4.41, 5.5.2, 5.6.16
- 3.0994415283203E-5
9.5367431640625E-7
- Output for 5.4.5, 5.6.15
- 3.4093856811523E-5
9.5367431640625E-7
- Output for 5.2.5, 5.3.25, 5.5.22, 5.6.14
- 2.8133392333984E-5
1.9073486328125E-6
- Output for 5.6.13
- 2.8848648071289E-5
1.1920928955078E-6
- Output for 5.4.22, 5.5.27, 5.6.12
- 3.0040740966797E-5
9.5367431640625E-7
- Output for 5.6.11
- 2.9802322387695E-5
9.5367431640625E-7
- Output for 5.4.2, 5.6.10
- 2.1934509277344E-5
9.5367431640625E-7
- Output for 5.6.9
- 2.4080276489258E-5
2.1457672119141E-6
- Output for 5.4.3, 5.6.5
- 3.2901763916016E-5
9.5367431640625E-7
- Output for 5.4.11, 5.6.4
- 2.7894973754883E-5
2.1457672119141E-6
- Output for 5.4.29, 5.4.44, 5.6.3
- 2.9087066650391E-5
9.5367431640625E-7
- Output for 5.6.2
- 2.6941299438477E-5
2.1457672119141E-6
- Output for 5.3.15, 5.4.21, 5.4.40, 5.6.1
- 3.1948089599609E-5
2.1457672119141E-6
- Output for 5.3.18, 5.4.39, 5.5.38
- 2.8133392333984E-5
9.5367431640625E-7
- Output for 5.5.37
- 4.1961669921875E-5
2.1457672119141E-6
- Output for 5.5.36
- 2.5033950805664E-5
2.1457672119141E-6
- Output for 5.5.35
- 3.1232833862305E-5
9.5367431640625E-7
- Output for 5.3.4, 5.3.6, 5.5.34
- 3.2901763916016E-5
2.1457672119141E-6
- Output for 5.3.27, 5.4.24, 5.4.34, 5.5.12, 5.5.33
- 2.598762512207E-5
9.5367431640625E-7
- Output for 5.3.21, 5.4.20, 5.5.32
- 2.9087066650391E-5
1.9073486328125E-6
- Output for 5.4.30, 5.4.35, 5.5.29
- 2.7179718017578E-5
9.5367431640625E-7
- Output for 5.5.28
- 2.7179718017578E-5
2.1457672119141E-6
- Output for 5.5.26
- 2.3126602172852E-5
1.9073486328125E-6
- Output for 5.5.24
- 3.6954879760742E-5
2.1457672119141E-6
- Output for 5.3.13, 5.4.25, 5.5.19
- 3.6954879760742E-5
1.9073486328125E-6
- Output for 5.2.6, 5.2.17, 5.5.16
- 3.3140182495117E-5
2.1457672119141E-6
- Output for 5.4.13, 5.5.11
- 3.2186508178711E-5
1.9073486328125E-6
- Output for 5.3.0, 5.5.10
- 2.9087066650391E-5
2.1457672119141E-6
- Output for 5.3.3, 5.4.36, 5.5.9
- 3.2901763916016E-5
1.9073486328125E-6
- Output for 5.5.8
- 3.4809112548828E-5
1.9073486328125E-6
- Output for 5.3.2, 5.5.7
- 3.4093856811523E-5
1.9073486328125E-6
- Output for 5.5.5
- 2.3841857910156E-5
1.9073486328125E-6
- Output for 5.5.1
- 2.1934509277344E-5
1.1920928955078E-6
- Output for 5.4.45
- 3.4093856811523E-5
2.1457672119141E-6
- Output for 5.3.23, 5.4.16, 5.4.27, 5.4.43
- 3.1948089599609E-5
1.9073486328125E-6
- Output for 5.4.42
- 3.0040740966797E-5
1.1920928955078E-6
- Output for 5.4.37
- 3.504753112793E-5
1.9073486328125E-6
- Output for 5.3.14, 5.3.20, 5.3.26, 5.4.32
- 2.8848648071289E-5
1.9073486328125E-6
- Output for 5.4.28
- 2.288818359375E-5
1.1920928955078E-6
- Output for 5.4.26
- 3.504753112793E-5
9.5367431640625E-7
- Output for 5.4.17
- 2.7894973754883E-5
1.9073486328125E-6
- Output for 5.3.19, 5.4.15
- 3.2186508178711E-5
2.1457672119141E-6
- Output for 5.4.12
- 2.4795532226562E-5
9.5367431640625E-7
- Output for 5.4.10
- 3.0994415283203E-5
1.1920928955078E-6
- Output for 5.4.9
- 3.7908554077148E-5
9.5367431640625E-7
- Output for 5.2.3, 5.4.6
- 2.9802322387695E-5
2.1457672119141E-6
- Output for 5.4.1
- 3.1948089599609E-5
1.1920928955078E-6
- Output for 5.3.17
- 2.6941299438477E-5
1.9073486328125E-6
- Output for 5.3.12
- 2.5033950805664E-5
1.9073486328125E-6
- Output for 5.2.7, 5.3.10
- 3.3140182495117E-5
1.9073486328125E-6
- Output for 5.3.9
- 3.504753112793E-5
2.1457672119141E-6
- Output for 5.3.8
- 2.8133392333984E-5
2.8610229492188E-6
- Output for 5.3.7
- 3.3855438232422E-5
1.9073486328125E-6
- Output for 5.3.5
- 2.598762512207E-5
1.9073486328125E-6
- Output for 5.3.1
- 3.9100646972656E-5
2.1457672119141E-6
- Output for 5.2.16
- 3.814697265625E-5
1.9073486328125E-6
- Output for 5.2.14
- 2.4795532226562E-5
2.1457672119141E-6
- Output for 5.2.13
- 2.9802322387695E-5
1.9073486328125E-6
- Output for 5.2.12
- 3.0040740966797E-5
3.0994415283203E-6
- Output for 5.2.11
- 3.1948089599609E-5
3.0994415283203E-6
- Output for 5.2.10
- 2.288818359375E-5
9.5367431640625E-7
- Output for 5.2.9
- 3.6954879760742E-5
4.0531158447266E-6
- Output for 5.2.8
- 3.3855438232422E-5
3.0994415283203E-6
- Output for 5.2.4
- 2.9087066650391E-5
2.8610229492188E-6
- Output for 5.2.2
- 2.7894973754883E-5
3.0994415283203E-6
- Output for 5.1.6, 5.2.1
- 3.0994415283203E-05
3.0994415283203E-06
- Output for 5.2.0
- 2.5033950805664E-05
3.0994415283203E-06
- Output for 5.1.5
- 3.6954879760742E-05
2.8610229492188E-06
- Output for 5.1.4
- 3.1948089599609E-05
3.814697265625E-06
- Output for 5.1.3
- 3.6001205444336E-05
3.0994415283203E-06
- Output for 5.1.2
- 3.9815902709961E-05
2.8610229492188E-06
- Output for 5.1.1
- 2.8848648071289E-05
1.9073486328125E-06
- Output for 5.1.0
- 3.3855438232422E-05
2.8610229492188E-06
- Output for 5.0.5
- 3.2901763916016E-05
3.814697265625E-06
- Output for 5.0.4
- 3.6954879760742E-05
5.0067901611328E-06
- Output for 5.0.3
- 3.4093856811523E-05
4.0531158447266E-06
- Output for 5.0.2
- 3.8862228393555E-05
5.9604644775391E-06
- Output for 5.0.1
- 3.4093856811523E-05
5.9604644775391E-06
- Output for 5.0.0
- 2.7179718017578E-05
1.9073486328125E-06
- Output for 4.4.9
- 3.9E-05
7E-06
- Output for 4.4.8
- 3.8E-05
5E-06
- Output for 4.4.7
- 4.3E-05
6E-06
- Output for 4.4.6
- 3.3E-05
4E-06
- Output for 4.3.10, 4.4.5
- 4.2E-05
5E-06
- Output for 4.4.4
- 3.5E-05
5E-06
- Output for 4.4.3
- 4.8E-05
6E-06
- Output for 4.4.2
- 4.9E-05
5E-06
- Output for 4.4.1
- 3.9E-05
5E-06
- Output for 4.4.0
- 4E-05
8E-06
- Output for 4.3.11
- 4.1E-05
8E-06
- Output for 4.3.9
- 3.3E-05
3E-06
- Output for 4.3.8
- 5.7E-05
7E-06
- Output for 4.3.7
- 5.2E-05
8E-06
- Output for 4.3.6
- 4.6E-05
5E-06
- Output for 4.3.5
- 5.5E-05
6E-06
- Output for 4.3.2, 4.3.4
- 5E-05
6E-06
- Output for 4.3.3
- 5E-05
8E-06
- Output for 4.3.1
- 5.6E-05
7E-06
- Output for 4.3.0
- 5.1E-05
6E-06
preferences:
166.89 ms | 401 KiB | 215 Q