3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Oddity{ const A_VAR = 'a' . 'b'; }

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)
8.3.60.0120.00316.38
8.3.50.0120.00621.91
8.3.40.0090.00918.66
8.3.30.0070.00719.00
8.3.20.0030.00620.21
8.3.10.0040.00423.39
8.3.00.0000.00820.76
8.2.180.0090.00616.50
8.2.170.0080.00622.96
8.2.160.0110.00320.39
8.2.150.0070.00024.18
8.2.140.0060.00324.66
8.2.130.0090.00626.16
8.2.120.0000.00822.15
8.2.110.0090.00022.16
8.2.100.0040.00817.78
8.2.90.0080.00019.05
8.2.80.0030.00617.97
8.2.70.0040.00417.25
8.2.60.0050.00317.80
8.2.50.0050.00318.07
8.2.40.0000.00918.22
8.2.30.0040.00417.84
8.2.20.0000.00817.57
8.2.10.0040.00417.61
8.2.00.0000.00717.54
8.1.280.0090.00625.92
8.1.270.0000.00922.05
8.1.260.0030.00626.35
8.1.250.0000.00728.09
8.1.240.0060.00323.89
8.1.230.0120.00019.10
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.00
8.1.190.0030.00517.38
8.1.180.0040.00418.10
8.1.170.0060.00318.51
8.1.160.0000.00721.94
8.1.150.0040.00418.38
8.1.140.0040.00417.32
8.1.130.0030.00317.66
8.1.120.0000.00717.37
8.1.110.0030.00617.29
8.1.100.0030.00517.23
8.1.90.0040.00417.23
8.1.80.0000.00717.21
8.1.70.0000.00717.19
8.1.60.0060.00317.46
8.1.50.0030.00617.35
8.1.40.0040.00417.31
8.1.30.0040.00417.51
8.1.20.0080.00017.41
8.1.10.0040.00417.27
8.1.00.0030.00717.34
8.0.300.0000.00718.77
8.0.290.0000.00717.04
8.0.280.0030.00318.37
8.0.270.0070.00017.03
8.0.260.0060.00016.56
8.0.250.0000.00716.72
8.0.240.0000.00716.85
8.0.230.0000.00716.79
8.0.220.0030.00316.62
8.0.210.0000.00716.73
8.0.200.0030.00316.78
8.0.190.0000.00716.73
8.0.180.0000.00716.83
8.0.170.0040.00416.66
8.0.160.0040.00416.81
8.0.150.0030.00316.66
8.0.140.0040.00416.61
8.0.130.0060.00013.18
8.0.120.0040.00416.71
8.0.110.0000.00816.70
8.0.100.0040.00416.67
8.0.90.0000.00716.75
8.0.80.0040.01116.72
8.0.70.0000.00716.55
8.0.60.0040.00516.64
8.0.50.0040.00416.82
8.0.30.0090.01016.94
8.0.20.0120.00717.40
8.0.10.0050.00216.78
8.0.00.0120.00516.61
7.4.330.0060.00015.05
7.4.320.0060.00316.37
7.4.300.0000.00616.46
7.4.290.0000.00716.47
7.4.280.0000.00716.38
7.4.270.0000.00716.51
7.4.260.0070.00016.27
7.4.250.0000.00716.31
7.4.240.0070.00016.30
7.4.230.0030.00316.22
7.4.220.0030.01916.41
7.4.210.0090.01116.43
7.4.200.0000.00716.36
7.4.190.0000.00716.54
7.4.160.0090.00616.14
7.4.150.0100.00617.40
7.4.140.0130.00417.86
7.4.130.0070.00816.42
7.4.120.0080.01016.34
7.4.110.0060.01116.57
7.4.100.0070.01016.51
7.4.90.0030.01416.23
7.4.80.0110.01119.39
7.4.70.0130.00316.17
7.4.60.0140.01016.06
7.4.50.0050.00016.59
7.4.40.0030.01022.77
7.4.30.0080.00816.50
7.4.00.0000.00814.75
7.3.330.0050.00013.15
7.3.320.0030.00313.13
7.3.310.0000.00716.20
7.3.300.0030.00316.17
7.3.290.0080.01216.09
7.3.280.0090.00816.17
7.3.270.0170.00017.40
7.3.260.0080.00816.10
7.3.250.0150.00216.11
7.3.240.0100.00716.39
7.3.230.0080.00816.40
7.3.210.0120.00616.45
7.3.200.0070.01019.39
7.3.190.0040.01516.39
7.3.180.0030.01316.27
7.3.170.0000.02316.36
7.3.160.0080.00816.35
7.3.120.0030.00614.79
7.2.330.0060.01216.43
7.2.320.0120.01016.60
7.2.310.0130.00716.18
7.2.300.0060.01116.55
7.2.290.0120.00916.16
7.2.00.0050.00518.93
7.1.100.0050.00517.58
7.1.70.0000.00916.78
7.1.60.0130.01019.29
7.1.50.0030.01716.74
7.1.00.0030.07722.57
7.0.200.0000.00816.64
7.0.140.0070.07021.90
7.0.60.0000.05320.01
7.0.50.0070.08317.96
7.0.40.0100.08720.27
7.0.30.0200.04320.07
7.0.20.0270.07720.18
7.0.10.0070.06320.33
7.0.00.0100.04020.33
5.6.280.0030.07321.06
5.6.210.0100.08020.48
5.6.200.0070.07718.23
5.6.190.0070.04320.47
5.6.180.0300.03720.63
5.6.170.0200.05020.56
5.6.160.0030.08720.39
5.6.150.0070.04718.16
5.6.140.0130.07018.26
5.6.130.0070.08018.23
5.6.120.0070.05021.13
5.6.110.0030.08021.00
5.6.100.0100.08020.88
5.6.90.0100.06720.97
5.6.80.0130.07720.33
5.5.350.0270.07320.34
5.5.340.0000.09018.03
5.5.330.0100.05720.40
5.5.320.0030.08320.27
5.5.310.0270.04020.29
5.5.300.0070.07317.94
5.5.290.0030.08317.99
5.5.280.0000.05720.89
5.5.270.0130.07720.72
5.5.260.0030.07320.88
5.5.250.0070.08020.55
5.5.240.0000.06020.15
5.4.450.0470.06019.45
5.4.440.0770.05319.46
5.4.430.0770.05319.61
5.4.420.0770.05319.57
5.4.410.0530.05719.34
5.4.400.0700.05019.29
5.4.390.0030.06319.14
5.4.380.0530.06018.50
5.4.370.0330.04718.68
5.4.360.0330.05018.71
5.4.350.0530.05018.47
5.4.340.0270.05718.74
5.4.320.0090.05012.51
5.4.310.0060.04612.50
5.4.300.0020.04112.51
5.4.290.0030.05212.50
5.4.280.0050.04012.40
5.4.270.0110.04412.40
5.4.260.0050.03812.40
5.4.250.0090.04112.40
5.4.240.0090.05012.40
5.4.230.0040.04112.39
5.4.220.0050.03612.39
5.4.210.0050.03512.39
5.4.200.0060.04512.39
5.4.190.0040.03712.39
5.4.180.0090.03712.39
5.4.170.0340.05612.38
5.4.160.0160.04512.37
5.4.150.0160.04512.36
5.4.140.0150.04312.05
5.4.130.0230.06912.03
5.4.120.0190.04212.00
5.4.110.0190.07311.99
5.4.100.0290.06111.99
5.4.90.0130.04511.99
5.4.80.0160.04311.99
5.4.70.0130.04311.99
5.4.60.0160.04011.99
5.4.50.0150.04111.99
5.4.40.0270.10711.97
5.4.30.0190.04311.97
5.4.20.0170.04411.97
5.4.10.0150.04311.97
5.4.00.0200.04111.46
5.3.290.0070.04312.80
5.3.280.0050.03812.70
5.3.270.0170.04912.73
5.3.260.0160.04512.72
5.3.250.0160.04512.72
5.3.240.0160.04512.72
5.3.230.0230.05612.71
5.3.220.0170.04612.68
5.3.210.0140.05012.68
5.3.200.0220.06712.68
5.3.190.0190.04312.68
5.3.180.0200.04112.67
5.3.170.0190.04112.67
5.3.160.0270.06412.67
5.3.150.0180.04312.68
5.3.140.0140.04512.66
5.3.130.0250.06812.65
5.3.120.0190.04212.66
5.3.110.0250.08212.66
5.3.100.0140.04712.12
5.3.90.0150.04612.08
5.3.80.0190.04312.08
5.3.70.0180.04412.08
5.3.60.0230.06812.07
5.3.50.0100.04812.00
5.3.40.0210.04312.00
5.3.30.0270.06411.96
5.3.20.0150.04311.75
5.3.10.0180.04111.70
5.3.00.0190.03811.69

preferences:
36.9 ms | 401 KiB | 5 Q