3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("2 ** 3 == %d\n", 2 ** 3); printf("3 ** 4 == %d\n", 3 ** 4); 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
8.3.50.0180.01323.10
8.3.40.0150.00619.09
8.3.30.0140.00019.12
8.3.20.0050.00320.32
8.3.10.0040.00423.77
8.3.00.0040.00419.38
8.2.180.0050.01016.63
8.2.170.0110.00322.96
8.2.160.0140.00020.53
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0030.00626.16
8.2.120.0040.00421.17
8.2.110.0100.00022.34
8.2.100.0120.00018.19
8.2.90.0000.00819.38
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0030.00618.18
8.2.50.0080.00018.07
8.2.40.0000.00820.19
8.2.30.0040.00418.34
8.2.20.0040.00417.79
8.2.10.0000.00718.26
8.2.00.0080.00017.91
8.1.280.0160.00025.92
8.1.270.0030.01022.31
8.1.260.0000.00926.35
8.1.250.0070.00028.09
8.1.240.0070.00422.14
8.1.230.0000.01119.73
8.1.220.0020.00517.91
8.1.210.0030.00618.77
8.1.200.0030.00617.61
8.1.190.0040.00417.48
8.1.180.0000.00818.10
8.1.170.0000.00918.66
8.1.160.0050.00322.23
8.1.150.0050.00219.14
8.1.140.0080.00017.54
8.1.130.0000.00718.11
8.1.120.0030.00317.64
8.1.110.0040.00417.67
8.1.100.0040.00417.61
8.1.90.0040.00417.48
8.1.80.0080.00017.66
8.1.70.0070.00017.57
8.1.60.0040.00417.75
8.1.50.0050.00317.71
8.1.40.0030.00517.61
8.1.30.0040.00417.87
8.1.20.0040.00417.83
8.1.10.0000.00717.66
8.1.00.0080.00017.66
8.0.300.0030.00518.77
8.0.290.0050.00316.75
8.0.280.0070.00018.63
8.0.270.0050.00217.39
8.0.260.0060.00017.29
8.0.250.0030.00417.11
8.0.240.0040.00417.11
8.0.230.0030.00316.95
8.0.220.0040.00417.02
8.0.210.0030.00517.08
8.0.200.0000.00617.14
8.0.190.0030.00617.13
8.0.180.0080.00017.04
8.0.170.0040.00417.04
8.0.160.0000.00717.08
8.0.150.0030.00616.93
8.0.140.0050.00316.88
8.0.130.0000.00613.44
8.0.120.0040.00417.06
8.0.110.0000.00717.01
8.0.100.0040.00416.91
8.0.90.0040.00416.99
8.0.80.0060.01517.04
8.0.70.0040.00417.13
8.0.60.0050.00317.20
8.0.50.0000.00717.06
8.0.30.0170.00617.03
8.0.20.0120.00717.41
8.0.10.0050.00217.13
8.0.00.0100.00816.78
7.4.330.0020.00215.23
7.4.320.0000.00616.60
7.4.300.0030.00316.65
7.4.290.0030.00316.79
7.4.280.0030.00616.73
7.4.270.0000.00716.68
7.4.260.0000.00716.66
7.4.250.0000.00816.70
7.4.240.0060.00216.73
7.4.230.0030.00316.75
7.4.220.0140.00516.79
7.4.210.0060.01016.70
7.4.200.0070.00016.75
7.4.160.0000.01716.64
7.4.150.0070.01817.40
7.4.140.0090.01017.86
7.4.130.0080.00816.49
7.4.120.0090.01116.58
7.4.110.0060.01016.69
7.4.100.0120.00616.49
7.4.90.0030.01316.59
7.4.80.0070.01019.39
7.4.70.0090.01916.39
7.4.60.0130.00316.89
7.4.50.0000.00416.44
7.4.40.0170.01016.36
7.4.30.0170.00316.60
7.4.00.0090.00815.01
7.3.330.0000.00613.20
7.3.320.0030.00313.32
7.3.310.0000.00716.42
7.3.300.0000.00716.28
7.3.290.0030.01216.41
7.3.280.0100.00716.32
7.3.270.0130.01017.40
7.3.260.0160.00516.58
7.3.250.0080.01016.32
7.3.240.0090.00916.37
7.3.230.0140.00316.39
7.3.210.0140.00316.38
7.3.200.0040.01419.39
7.3.190.0140.00716.35
7.3.180.0130.00316.22
7.3.170.0060.00916.50
7.3.160.0110.01316.30
7.3.120.0050.01214.96
7.3.110.0100.00814.85
7.3.100.0070.00814.78
7.3.90.0110.00614.92
7.3.80.0030.01014.62
7.3.70.0070.00414.67
7.3.60.0030.01014.72
7.3.50.0050.00714.68
7.3.40.0080.00514.90
7.3.30.0090.00614.67
7.3.20.0060.00816.50
7.3.10.0030.01016.42
7.3.00.0040.00916.70
7.2.330.0200.02316.61
7.2.320.0060.01716.74
7.2.310.0090.00916.47
7.2.300.0030.01316.60
7.2.290.0130.01016.46
7.2.250.0080.00815.16
7.2.240.0050.01414.92
7.2.230.0100.00715.15
7.2.220.0080.01015.11
7.2.210.0050.01115.03
7.2.200.0050.00814.89
7.2.190.0050.01114.98
7.2.180.0040.00715.04
7.2.170.0070.00715.21
7.2.60.0070.01016.98
7.2.50.0240.00016.76
7.1.330.0040.01015.97
7.1.320.0050.00715.80
7.1.310.0080.00815.92
7.1.300.0060.00915.87
7.1.290.0030.00915.87
7.1.280.0080.00515.97
7.1.270.0020.01215.89
7.1.260.0090.00515.69
7.1.200.0030.01215.66
7.1.70.0030.00617.13
7.1.60.0140.01019.40
7.1.50.0060.01317.13
7.1.00.0070.07322.55
7.0.200.0030.00716.78
7.0.140.0000.08022.28
7.0.60.0000.04320.12
7.0.50.0170.04318.02
7.0.40.0070.09020.11
7.0.30.0200.04720.07
7.0.20.0200.04720.15
7.0.10.0100.08720.08
7.0.00.0070.05320.32
5.6.280.0030.06721.06
5.6.210.0000.09020.80
5.6.200.0170.07718.33
5.6.190.0130.04320.53
5.6.180.0930.06020.34
5.6.170.0200.03720.48
5.6.160.0170.07320.56
5.6.150.0030.08018.22
5.6.140.0000.08318.22
5.6.130.0070.08318.21
5.6.120.0100.09021.20
5.6.110.0030.08321.04
5.6.100.0030.04021.04
5.6.90.0070.09321.07
5.6.80.0000.04020.56
5.5.350.0130.06320.43
5.5.340.0070.07717.96
5.5.330.0000.09320.19
5.5.320.0300.06720.32
5.5.310.0300.05020.50
5.5.300.0070.03317.94
5.5.290.0000.04318.08
5.5.280.0130.08020.72
5.5.270.0030.06020.73
5.5.260.0070.03720.97
5.5.250.0070.06020.56
5.5.240.0170.04320.36
5.4.450.0400.04719.28
5.4.440.0230.04719.39
5.4.430.0330.04319.39
5.4.420.0130.03719.54
5.4.410.0330.02719.26
5.4.400.0200.03719.23
5.4.390.0230.03719.06
5.4.380.0530.04318.51
5.4.370.0300.05718.78
5.4.360.0600.04018.89
5.4.350.0230.06718.71
5.4.340.0400.05318.54
5.4.320.0070.03412.50
5.4.310.0070.03712.50
5.4.300.0040.03812.49
5.4.290.0090.03412.50
5.4.280.0040.03712.39
5.4.270.0050.03612.39
5.4.260.0050.03812.39
5.4.250.0060.03812.39
5.4.240.0060.03612.39
5.4.230.0040.04012.38
5.4.220.0060.03612.38
5.4.210.0060.03812.38
5.4.200.0100.04012.38
5.4.190.0090.03712.38
5.4.180.0070.04212.38
5.4.170.0100.03412.38
5.4.160.0040.03812.38
5.4.150.0050.03812.38
5.4.140.0080.03512.07
5.4.130.0070.03612.05
5.4.120.0070.03312.01
5.4.110.0040.03812.02
5.4.100.0070.03412.01
5.4.90.0060.04012.01
5.4.80.0030.04212.01
5.4.70.0070.04212.01
5.4.60.0080.03812.01
5.4.50.0090.03312.01
5.4.40.0070.04812.00
5.4.30.0100.04511.99
5.4.20.0070.04811.99
5.4.10.0080.04311.99
5.4.00.0150.06711.48
5.3.290.0060.04012.80
5.3.280.0060.04012.71
5.3.270.0070.04912.73
5.3.260.0080.06512.72
5.3.250.0090.05212.72
5.3.240.0080.05312.71
5.3.230.0070.04012.71
5.3.220.0070.03712.68
5.3.210.0060.03912.68
5.3.200.0040.04012.68
5.3.190.0070.03512.68
5.3.180.0070.03512.68
5.3.170.0030.03912.67
5.3.160.0070.03612.68
5.3.150.0040.04112.67
5.3.140.0090.04112.66
5.3.130.0100.04612.66
5.3.120.0120.03812.66
5.3.110.0070.04112.66
5.3.100.0060.03712.12
5.3.90.0080.04512.08
5.3.80.0060.03512.07
5.3.70.0090.03312.08
5.3.60.0050.03912.06
5.3.50.0060.03712.00
5.3.40.0050.04912.00
5.3.30.0050.04111.95
5.3.20.0070.04011.72
5.3.10.0040.04011.70
5.3.00.0060.03911.68
5.2.170.0040.0319.18
5.2.160.0070.0399.18
5.2.150.0020.0389.18
5.2.140.0050.0319.18
5.2.130.0040.0369.14
5.2.120.0020.0319.14
5.2.110.0050.0289.14
5.2.100.0030.0339.14
5.2.90.0040.0339.14
5.2.80.0070.0279.14
5.2.70.0050.0339.13
5.2.60.0040.0309.09
5.2.50.0050.0299.06
5.2.40.0030.0319.04
5.2.30.0070.0299.02
5.2.20.0070.0279.00
5.2.10.0040.0368.92
5.2.00.0040.0308.79
5.1.60.0090.0218.07
5.1.50.0070.0238.06
5.1.40.0030.0298.04
5.1.30.0040.0308.40
5.1.20.0100.0268.41
5.1.10.0060.0268.14
5.1.00.0080.0238.14
5.0.50.0060.0216.62
5.0.40.0010.0216.48
5.0.30.0040.0326.29
5.0.20.0030.0196.26
5.0.10.0030.0236.24
5.0.00.0040.0306.23
4.4.90.0050.0144.78
4.4.80.0020.0164.76
4.4.70.0020.0164.75
4.4.60.0030.0154.76
4.4.50.0030.0154.77
4.4.40.0050.0254.71
4.4.30.0020.0164.76
4.4.20.0020.0174.84
4.4.10.0020.0174.85
4.4.00.0040.0244.76
4.3.110.0030.0204.67
4.3.100.0020.0204.67
4.3.90.0050.0154.63
4.3.80.0050.0294.59
4.3.70.0040.0194.63
4.3.60.0050.0134.63
4.3.50.0050.0134.62
4.3.40.0030.0244.54
4.3.30.0010.0173.28
4.3.20.0030.0163.26
4.3.10.0050.0133.22
4.3.00.0030.01715.63

preferences:
39.4 ms | 401 KiB | 5 Q