3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("2 ** 3 == %d\n", 2 ** 3); printf("2 ** 3 ** 4 == %d\n", 2 ** 3 ** 4); printf("(2 ** 3) ** 4 == %d\n", (2 ** 3) ** 4); printf("2 ** (3 ** 4) == %d\n", 2 ** (3 ** 4)); $a = 2; $a **= 3; printf("a == %d\n", $a);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0060.00916.88
8.3.50.0140.01122.91
8.3.40.0090.01219.04
8.3.30.0110.00318.92
8.3.20.0080.00020.41
8.3.10.0050.00323.48
8.3.00.0050.00319.63
8.2.180.0110.00418.66
8.2.170.0110.00322.96
8.2.160.0070.00720.64
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0140.00326.16
8.2.120.0000.00821.10
8.2.110.0040.00422.58
8.2.100.0110.00018.09
8.2.90.0000.00819.55
8.2.80.0040.00417.97
8.2.70.0000.00817.84
8.2.60.0050.00318.29
8.2.50.0040.00418.07
8.2.40.0030.00620.25
8.2.30.0040.00418.27
8.2.20.0000.00817.88
8.2.10.0040.00418.10
8.2.00.0000.00717.88
8.1.280.0140.00725.92
8.1.270.0100.01022.33
8.1.260.0080.00626.35
8.1.250.0000.00728.09
8.1.240.0070.00423.93
8.1.230.0040.00822.99
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0000.00917.48
8.1.190.0060.00317.47
8.1.180.0030.00518.10
8.1.170.0040.00418.71
8.1.160.0070.00022.05
8.1.150.0050.00218.98
8.1.140.0030.00617.66
8.1.130.0070.00018.06
8.1.120.0000.00717.69
8.1.110.0030.00517.68
8.1.100.0080.00017.61
8.1.90.0050.00217.52
8.1.80.0030.00317.61
8.1.70.0000.00717.61
8.1.60.0040.00417.78
8.1.50.0040.00417.69
8.1.40.0030.00517.52
8.1.30.0000.00717.82
8.1.20.0030.00617.77
8.1.10.0000.00817.72
8.1.00.0040.00417.62
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0070.00018.67
8.0.270.0000.00717.54
8.0.260.0030.00317.41
8.0.250.0040.00417.12
8.0.240.0070.00017.12
8.0.230.0000.00817.09
8.0.220.0000.00717.13
8.0.210.0040.00417.06
8.0.200.0030.00317.03
8.0.190.0030.00617.20
8.0.180.0030.00417.05
8.0.170.0000.00717.08
8.0.160.0030.00316.91
8.0.150.0000.00716.97
8.0.140.0040.00416.94
8.0.130.0050.00013.50
8.0.120.0040.00417.02
8.0.110.0040.00417.08
8.0.100.0000.00716.91
8.0.90.0000.00717.11
8.0.80.0090.01216.96
8.0.70.0030.00517.10
8.0.60.0000.00716.94
8.0.50.0000.00817.14
8.0.30.0110.01117.20
8.0.20.0060.01417.40
8.0.10.0000.00816.99
8.0.00.0080.01016.85
7.4.330.0020.00215.37
7.4.320.0060.00016.80
7.4.300.0030.00316.68
7.4.290.0040.00416.66
7.4.280.0070.00316.72
7.4.270.0000.00816.64
7.4.260.0030.00316.67
7.4.250.0080.00016.66
7.4.240.0000.00716.67
7.4.230.0000.00716.53
7.4.220.0060.01316.71
7.4.210.0070.01116.71
7.4.200.0030.00316.66
7.4.160.0100.00616.57
7.4.150.0110.00817.40
7.4.140.0100.00817.86
7.4.130.0100.00716.66
7.4.120.0150.00216.59
7.4.110.0060.00916.63
7.4.100.0140.00716.54
7.4.90.0030.01316.63
7.4.80.0090.01019.39
7.4.70.0060.01616.54
7.4.60.0060.00916.40
7.4.50.0030.00616.54
7.4.40.0070.01116.64
7.4.30.0100.01016.47
7.4.00.0060.00915.07
7.3.330.0040.00213.25
7.3.320.0000.00513.29
7.3.310.0030.00516.44
7.3.300.0030.00316.38
7.3.290.0000.01416.32
7.3.280.0060.01316.30
7.3.270.0100.01617.40
7.3.260.0110.01616.69
7.3.250.0110.00516.51
7.3.240.0060.01016.33
7.3.230.0090.00916.39
7.3.210.0130.00316.25
7.3.200.0070.01019.39
7.3.190.0070.01016.39
7.3.180.0060.00916.35
7.3.170.0060.00916.32
7.3.160.0040.02016.46
7.2.330.0060.01216.73
7.2.320.0100.00716.48
7.2.310.0000.01716.35
7.2.300.0060.01016.51
7.2.290.0080.01116.75
7.1.200.0060.00915.77
7.1.70.0000.01017.02
7.1.60.0070.01719.40
7.1.50.0150.00916.93
7.1.00.0070.07322.62
7.0.200.0060.00316.79
7.0.140.0070.07022.19
7.0.60.0130.08020.25
7.0.50.0170.06718.03
7.0.40.0030.06020.11
7.0.30.0230.05020.24
7.0.20.0300.06720.21
7.0.10.0070.08720.41
7.0.00.0070.04720.22
5.6.280.0030.07321.30
5.6.210.0130.05720.56
5.6.200.0070.05018.22
5.6.190.0070.09020.51
5.6.180.0270.06320.64
5.6.170.0230.08720.57
5.6.160.0070.04020.60
5.6.150.0000.05018.21
5.6.140.0070.04318.34
5.6.130.0030.08318.16
5.6.120.0030.04321.30
5.6.110.0130.08021.09
5.6.100.0170.07721.18
5.6.90.0030.04021.16
5.6.80.0130.05720.53
5.5.350.0070.07320.37
5.5.340.0030.09017.97
5.5.330.0100.04320.31
5.5.320.0200.04320.36
5.5.310.0100.04720.50
5.5.300.0030.08717.95
5.5.290.0070.08017.99
5.5.280.0100.07020.87
5.5.270.0170.08020.79
5.5.260.0070.08020.76
5.5.250.0000.04320.70
5.5.240.0070.04320.15
5.4.450.0370.04319.39
5.4.440.0330.04019.57
5.4.430.0100.05319.64
5.4.420.0070.05019.64
5.4.410.0200.04719.28
5.4.400.0330.03719.23
5.4.390.0100.04319.20
5.4.380.0400.07018.56
5.4.370.0530.05018.55
5.4.360.0400.05018.72
5.4.350.0470.07318.75
5.4.340.0500.06718.77
5.4.320.0080.03312.50
5.4.310.0080.03512.49
5.4.300.0050.03712.50
5.4.290.0050.04012.50
5.4.280.0080.03712.39
5.4.270.0070.03812.39
5.4.260.0070.03512.39
5.4.250.0040.04612.39
5.4.240.0060.03712.39
5.4.230.0080.03512.38
5.4.220.0040.04312.38
5.4.210.0070.03912.38
5.4.200.0090.03912.38
5.4.190.0050.04612.38
5.4.180.0060.04012.38
5.4.170.0080.03912.39
5.4.160.0110.03412.38
5.4.150.0080.03312.38
5.4.140.0090.03912.07
5.4.130.0060.03812.05
5.4.120.0050.04612.02
5.4.110.0070.04412.01
5.4.100.0040.03812.00
5.4.90.0080.04012.01
5.4.80.0050.04612.01
5.4.70.0060.03512.01
5.4.60.0020.04012.00
5.4.50.0120.03212.01
5.4.40.0070.03611.99
5.4.30.0100.03911.99
5.4.20.0060.03611.98
5.4.10.0030.04111.99
5.4.00.0110.03811.48
5.3.290.0040.04512.80
5.3.280.0060.03812.71
5.3.270.0050.04212.72
5.3.260.0070.05412.72
5.3.250.0080.03712.72
5.3.240.0080.04312.72
5.3.230.0050.03912.71
5.3.220.0090.03312.68
5.3.210.0060.03812.68
5.3.200.0060.04212.68
5.3.190.0050.04312.67
5.3.180.0050.03812.67
5.3.170.0060.03812.67
5.3.160.0090.04112.68
5.3.150.0070.03812.67
5.3.140.0090.03612.66
5.3.130.0060.04112.66
5.3.120.0030.04412.66
5.3.110.0060.04212.66
5.3.100.0060.03912.12
5.3.90.0070.04112.09
5.3.80.0050.04412.07
5.3.70.0070.03812.08
5.3.60.0060.03912.07
5.3.50.0070.03612.00
5.3.40.0050.03712.00
5.3.30.0110.03411.95
5.3.20.0100.03611.73
5.3.10.0040.04411.69
5.3.00.0080.04111.68
5.2.170.0060.0349.18
5.2.160.0060.0359.18
5.2.150.0050.0309.18
5.2.140.0050.0309.18
5.2.130.0090.0259.14
5.2.120.0040.0299.14
5.2.110.0040.0309.14
5.2.100.0040.0299.14
5.2.90.0060.0349.14
5.2.80.0060.0309.14
5.2.70.0040.0319.14
5.2.60.0060.0309.09
5.2.50.0060.0299.06
5.2.40.0090.0259.03
5.2.30.0070.0299.01
5.2.20.0040.0309.00
5.2.10.0060.0298.93
5.2.00.0060.0338.79
5.1.60.0050.0248.07
5.1.50.0060.0268.06
5.1.40.0030.0328.05
5.1.30.0050.0318.40
5.1.20.0040.0298.41
5.1.10.0040.0268.14
5.1.00.0040.0298.14
5.0.50.0080.0266.62
5.0.40.0070.0246.48
5.0.30.0040.0336.29
5.0.20.0030.0256.27
5.0.10.0030.0216.24
5.0.00.0030.0316.24
4.4.90.0050.0154.78
4.4.80.0040.0154.75
4.4.70.0020.0164.76
4.4.60.0050.0164.75
4.4.50.0060.0224.77
4.4.40.0030.0254.71
4.4.30.0050.0214.76
4.4.20.0060.0234.84
4.4.10.0040.0144.85
4.4.00.0060.0354.76
4.3.110.0020.0164.67
4.3.100.0040.0234.67
4.3.90.0030.0204.64
4.3.80.0030.0304.58
4.3.70.0040.0244.63
4.3.60.0040.0134.62
4.3.50.0060.0194.63
4.3.40.0060.0334.54
4.3.30.0050.0223.28
4.3.20.0030.0153.26
4.3.10.0040.0143.22
4.3.00.0070.01315.63

preferences:
43.96 ms | 401 KiB | 5 Q