<?php
$x = 129;
$y = 1;
$m = microtime(true);
$y = 1 << ceil(log($x, 2));
echo ($m - microtime(true)), "\n\r";
$y = 1;
$m = microtime(true);
while ($y < $x) {
$y = $y <<1;
}
echo microtime(true) - $m;
- Output for 7.2.0
- -2.1219253540039E-5
9.5367431640625E-7
- Output for 7.1.7
- -1.7166137695312E-5
2.8610229492188E-6
- Output for 7.1.6
- -3.4093856811523E-5
5.9604644775391E-6
- Output for 7.1.5
- -4.3153762817383E-5
5.9604644775391E-6
- Output for 5.5.5, 5.5.12, 5.5.25, 5.6.10, 7.0.2, 7.1.0
- -2.598762512207E-5
9.5367431640625E-7
- Output for 7.0.20
- -1.9073486328125E-5
0
- Output for 7.0.14
- -2.288818359375E-5
0
- Output for 7.0.10
- -2.5033950805664E-5
0
- Output for 7.0.9
- -1.7881393432617E-5
9.5367431640625E-7
- Output for 5.6.21, 7.0.8
- -2.0980834960938E-5
9.5367431640625E-7
- Output for 5.5.36, 7.0.7
- -1.8835067749023E-5
9.5367431640625E-7
- Output for 7.0.6
- -1.978874206543E-5
9.5367431640625E-7
- Output for 7.0.5
- -2.0980834960938E-5
0
- Output for 5.4.0, 5.4.2, 5.4.32, 5.5.10, 5.5.19, 5.6.12, 7.0.4
- -3.0040740966797E-5
9.5367431640625E-7
- Output for 7.0.3
- -2.9087066650391E-5
0
- Output for 7.0.1
- -2.5033950805664E-5
1.1920928955078E-6
- Output for 7.0.0
- -2.288818359375E-5
1.1920928955078E-6
- Output for 5.3.1, 5.3.17, 5.6.28
- -2.8133392333984E-5
9.5367431640625E-7
- Output for 5.3.10, 5.3.23, 5.5.34, 5.6.25
- -2.1934509277344E-5
9.5367431640625E-7
- Output for 5.6.24
- -2.5033950805664E-5
2.1457672119141E-6
- Output for 5.5.33, 5.6.19, 5.6.23
- -2.0027160644531E-5
9.5367431640625E-7
- Output for 5.6.22
- -2.3126602172852E-5
1.1920928955078E-6
- Output for 5.6.20
- -2.6226043701172E-5
9.5367431640625E-7
- Output for 5.5.18, 5.6.18
- -2.2172927856445E-5
9.5367431640625E-7
- Output for 5.6.17
- -4.2915344238281E-5
9.5367431640625E-7
- Output for 5.6.16
- -2.288818359375E-5
1.9073486328125E-6
- Output for 5.3.16, 5.6.15
- -2.9087066650391E-5
1.9073486328125E-6
- Output for 5.6.14
- -2.5033950805664E-5
9.5367431640625E-7
- Output for 5.4.11, 5.4.17, 5.6.13
- -2.9087066650391E-5
1.1920928955078E-6
- Output for 5.6.11
- -2.7894973754883E-5
1.1920928955078E-6
- Output for 5.3.29, 5.4.36, 5.4.42, 5.6.9
- -3.0994415283203E-5
9.5367431640625E-7
- Output for 5.3.6, 5.4.22, 5.6.8
- -3.0040740966797E-5
1.9073486328125E-6
- Output for 5.3.5, 5.4.6, 5.5.1, 5.5.20, 5.6.2, 5.6.7
- -3.0994415283203E-5
2.1457672119141E-6
- Output for 5.3.26, 5.4.18, 5.4.23, 5.6.0, 5.6.6
- -2.7894973754883E-5
9.5367431640625E-7
- Output for 5.3.13, 5.6.5
- -3.6001205444336E-5
1.9073486328125E-6
- Output for 5.3.22, 5.6.4
- -2.9802322387695E-5
1.9073486328125E-6
- Output for 5.5.13, 5.6.3
- -2.7894973754883E-5
2.1457672119141E-6
- Output for 5.4.8, 5.4.15, 5.4.24, 5.4.27, 5.6.1
- -3.1948089599609E-5
9.5367431640625E-7
- Output for 5.5.38
- -2.288818359375E-5
9.5367431640625E-7
- Output for 5.5.37
- -1.9073486328125E-5
9.5367431640625E-7
- Output for 5.5.35
- -2.0980834960938E-5
1.9073486328125E-6
- Output for 5.5.32
- -2.3126602172852E-5
1.9073486328125E-6
- Output for 5.4.20, 5.5.31
- -3.0994415283203E-5
1.1920928955078E-6
- Output for 5.3.8, 5.4.1, 5.5.30
- -2.7894973754883E-5
1.9073486328125E-6
- Output for 5.5.29
- -4.3153762817383E-5
9.5367431640625E-7
- Output for 5.3.2, 5.5.28
- -2.8848648071289E-5
1.9073486328125E-6
- Output for 5.4.9, 5.5.27
- -2.8848648071289E-5
9.5367431640625E-7
- Output for 5.4.39, 5.5.22, 5.5.26
- -3.2901763916016E-5
9.5367431640625E-7
- Output for 5.4.3, 5.5.24
- -3.3140182495117E-5
9.5367431640625E-7
- Output for 5.4.10, 5.4.25, 5.4.45, 5.5.8, 5.5.23
- -3.0040740966797E-5
2.1457672119141E-6
- Output for 5.3.3, 5.5.2, 5.5.21
- -2.9087066650391E-5
9.5367431640625E-7
- Output for 5.3.14, 5.5.6, 5.5.16
- -2.3126602172852E-5
9.5367431640625E-7
- Output for 5.5.3, 5.5.15
- -2.6941299438477E-5
2.1457672119141E-6
- Output for 5.2.6, 5.2.15, 5.3.0, 5.4.7, 5.5.14
- -3.1948089599609E-5
1.9073486328125E-6
- Output for 5.4.28, 5.5.11
- -3.4093856811523E-5
9.5367431640625E-7
- Output for 5.4.26, 5.5.9
- -3.504753112793E-5
2.1457672119141E-6
- Output for 5.5.7
- -3.4093856811523E-5
2.1457672119141E-6
- Output for 5.5.4
- -2.4080276489258E-5
1.1920928955078E-6
- Output for 5.5.0
- -4.6014785766602E-5
2.1457672119141E-6
- Output for 5.3.18, 5.4.31, 5.4.40, 5.4.44
- -3.0994415283203E-5
1.9073486328125E-6
- Output for 5.4.43
- -3.4093856811523E-5
1.9073486328125E-6
- Output for 5.4.12, 5.4.14, 5.4.30, 5.4.41
- -3.2901763916016E-5
1.9073486328125E-6
- Output for 5.4.38
- -3.6001205444336E-5
1.1920928955078E-6
- Output for 5.4.37
- -3.4809112548828E-5
9.5367431640625E-7
- Output for 5.4.35
- -2.6941299438477E-5
9.5367431640625E-7
- Output for 5.4.34
- -3.504753112793E-5
1.9073486328125E-6
- Output for 5.3.7, 5.3.25, 5.4.13, 5.4.29
- -3.2901763916016E-5
2.1457672119141E-6
- Output for 5.4.21
- -3.0040740966797E-5
1.1920928955078E-6
- Output for 5.3.15, 5.4.19
- -2.8848648071289E-5
2.1457672119141E-6
- Output for 5.4.4, 5.4.16
- -2.6941299438477E-5
1.1920928955078E-6
- Output for 5.4.5
- -2.9087066650391E-5
2.1457672119141E-6
- Output for 5.3.4, 5.3.19, 5.3.28
- -3.2186508178711E-5
1.9073486328125E-6
- Output for 5.3.27
- -4.0054321289062E-5
2.1457672119141E-6
- Output for 5.3.24
- -3.3855438232422E-5
1.9073486328125E-6
- Output for 5.3.21
- -3.3140182495117E-5
1.9073486328125E-6
- Output for 5.3.20
- -3.0040740966797E-5
2.8610229492188E-6
- Output for 5.3.12
- -2.8133392333984E-5
2.1457672119141E-6
- Output for 5.3.11
- -2.7179718017578E-5
9.5367431640625E-7
- Output for 5.2.17, 5.3.9
- -2.8133392333984E-5
3.0994415283203E-6
- Output for 5.2.16
- -3.1948089599609E-5
3.0994415283203E-6
- Output for 5.2.14
- -3.504753112793E-5
3.0994415283203E-6
- Output for 5.2.2, 5.2.13
- -3.3140182495117E-5
2.8610229492188E-6
- Output for 5.2.12
- -3.504753112793E-5
2.8610229492188E-6
- Output for 5.2.11
- -2.6941299438477E-5
1.9073486328125E-6
- Output for 5.2.10
- -2.7179718017578E-5
1.9073486328125E-6
- Output for 5.2.9
- -3.2186508178711E-5
3.0994415283203E-6
- Output for 5.2.8
- -3.0994415283203E-5
3.0994415283203E-6
- Output for 5.2.7
- -2.8133392333984E-5
2.8610229492188E-6
- Output for 5.2.5
- -3.7908554077148E-5
3.0994415283203E-6
- Output for 5.2.4
- -4.3153762817383E-5
5.0067901611328E-6
- Output for 5.2.3
- -3.4809112548828E-5
3.0994415283203E-6
- Output for 5.1.1, 5.2.1
- -3.1948089599609E-05
4.0531158447266E-06
- Output for 5.2.0
- -2.8848648071289E-05
2.1457672119141E-06
- Output for 5.1.6
- -2.9087066650391E-05
2.8610229492188E-06
- Output for 5.1.5
- -2.7894973754883E-05
2.1457672119141E-06
- Output for 5.1.4
- -3.2901763916016E-05
3.0994415283203E-06
- Output for 5.1.3
- -3.4093856811523E-05
3.0994415283203E-06
- Output for 5.1.2
- -3.504753112793E-05
2.8610229492188E-06
- Output for 5.1.0
- -3.504753112793E-05
3.0994415283203E-06
- Output for 5.0.5
- -3.504753112793E-05
5.0067901611328E-06
- Output for 5.0.1, 5.0.4
- -3.6001205444336E-05
4.0531158447266E-06
- Output for 5.0.3
- -3.3140182495117E-05
5.0067901611328E-06
- Output for 5.0.2
- -3.7193298339844E-05
5.0067901611328E-06
- Output for 5.0.0
- -3.0040740966797E-05
4.0531158447266E-06
- Output for 4.4.9
- -4.4E-05
6E-06
- Output for 4.4.8
- -3.9E-05
7E-06
- Output for 4.4.1, 4.4.7
- -4.2E-05
5E-06
- Output for 4.4.6
- -4.2E-05
6E-06
- Output for 4.4.5
- -4.1E-05
5E-06
- Output for 4.4.4
- -3.3E-05
4E-06
- Output for 4.4.3
- -4.7E-05
6E-06
- Output for 4.4.2
- -4.4E-05
5E-06
- Output for 4.4.0
- -4.5E-05
7E-06
- Output for 4.3.11
- -5.2E-05
6E-06
- Output for 4.3.10
- -4E-05
4E-06
- Output for 4.3.9
- -5.6E-05
6E-06
- Output for 4.3.8
- -4.7E-05
7E-06
- Output for 4.3.1, 4.3.7
- -5.1E-05
5E-06
- Output for 4.3.6
- -5E-05
6E-06
- Output for 4.3.5
- -4.6E-05
4E-06
- Output for 4.3.4
- -4.8E-05
5E-06
- Output for 4.3.3
- -4.7E-05
5E-06
- Output for 4.3.2
- -5E-05
5E-06
- Output for 4.3.0
- -5.1E-05
7E-06
preferences:
158.05 ms | 401 KiB | 216 Q