3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "a"; $$var;

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)
8.3.40.0140.00018.55
8.3.30.0150.00318.92
8.3.20.0000.00720.16
8.3.10.0000.00723.66
8.3.00.0090.00020.95
8.2.170.0110.00422.96
8.2.160.0070.00720.43
8.2.150.0090.00024.18
8.2.140.0000.00724.66
8.2.130.0080.00026.16
8.2.120.0080.00019.50
8.2.110.0090.00022.20
8.2.100.0040.00720.34
8.2.90.0000.00919.22
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0050.00317.93
8.2.50.0040.00418.07
8.2.40.0030.00618.22
8.2.30.0070.00018.17
8.2.20.0070.00017.58
8.2.10.0060.00317.92
8.2.00.0000.00717.66
8.1.270.0000.00823.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.18
8.1.230.0040.00719.19
8.1.220.0000.00817.78
8.1.210.0040.00418.77
8.1.200.0040.00817.35
8.1.190.0040.00417.22
8.1.180.0070.00018.10
8.1.170.0050.00518.46
8.1.160.0040.00421.92
8.1.150.0000.00718.63
8.1.140.0000.00817.31
8.1.130.0070.00017.73
8.1.120.0070.00017.47
8.1.110.0000.00817.35
8.1.100.0080.00017.34
8.1.90.0030.00317.39
8.1.80.0050.00217.41
8.1.70.0000.00717.30
8.1.60.0060.00317.58
8.1.50.0000.00817.49
8.1.40.0040.00417.52
8.1.30.0040.00417.66
8.1.20.0030.00517.70
8.1.10.0000.00817.49
8.1.00.0070.00017.43
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00618.54
8.0.270.0000.00817.25
8.0.260.0000.00617.16
8.0.250.0000.00716.91
8.0.240.0030.00617.03
8.0.230.0000.00716.89
8.0.220.0030.00316.98
8.0.210.0040.00416.84
8.0.200.0030.00316.99
8.0.190.0070.00016.87
8.0.180.0070.00016.96
8.0.170.0000.00816.97
8.0.160.0000.00816.82
8.0.150.0000.00717.00
8.0.140.0070.00016.77
8.0.130.0030.00313.32
8.0.120.0040.00416.79
8.0.110.0040.00416.84
8.0.100.0030.00316.88
8.0.90.0070.00016.83
8.0.80.0060.00916.86
8.0.70.0000.00716.99
8.0.60.0030.00516.91
8.0.50.0000.00716.97
8.0.30.0110.00717.11
8.0.20.0140.00517.40
8.0.10.0040.00416.95
8.0.00.0110.00616.51
7.4.330.0020.00215.02
7.4.320.0000.00716.63
7.4.300.0060.00016.44
7.4.290.0000.00816.50
7.4.280.0030.00516.59
7.4.270.0030.00316.51
7.4.260.0030.00316.39
7.4.250.0080.00016.52
7.4.240.0000.00716.62
7.4.230.0070.00016.24
7.4.220.0140.00316.61
7.4.210.0030.01116.63
7.4.200.0030.00316.67
7.4.160.0030.01316.62
7.4.150.0100.00717.40
7.4.140.0070.01317.86
7.4.130.0110.00716.39
7.4.120.0080.01116.54
7.4.110.0160.00816.49
7.4.100.0140.00416.57
7.4.90.0070.01416.57
7.4.80.0140.00419.39
7.4.70.0060.01016.44
7.4.60.0000.01716.36
7.4.50.0000.00616.55
7.4.40.0130.00816.39
7.4.30.0100.00616.52
7.4.00.0070.01014.91
7.3.330.0050.00013.18
7.3.320.0000.00613.16
7.3.310.0000.00716.28
7.3.300.0000.00816.14
7.3.290.0100.01016.21
7.3.280.0090.00816.22
7.3.270.0090.00917.40
7.3.260.0100.01316.45
7.3.250.0110.00616.39
7.3.240.0040.01416.21
7.3.230.0120.00616.39
7.3.210.0090.00916.31
7.3.200.0030.01319.39
7.3.190.0150.00616.30
7.3.180.0040.01216.23
7.3.170.0130.00316.57
7.3.160.0100.01416.32
7.3.120.0070.00714.96
7.2.330.0140.00716.21
7.2.320.0070.01016.31
7.2.310.0060.00916.41
7.2.300.0090.00916.25
7.2.290.0070.01016.25
7.1.100.0130.00317.96
7.1.70.0070.01017.02
7.1.60.0070.01419.70
7.1.50.0140.01016.68
7.1.00.0070.07322.35
7.0.200.0060.00316.68
7.0.140.0070.07022.02
7.0.100.0000.05019.92
7.0.90.0000.08019.93
7.0.80.0200.05719.88
7.0.70.0100.07319.89
7.0.60.0230.08719.95
7.0.50.0070.06720.30
7.0.40.0070.05020.14
7.0.30.0030.06719.95
7.0.20.0070.06720.07
7.0.10.0030.06720.16
7.0.00.0070.06320.14
5.6.280.0070.07021.12
5.6.250.0070.08320.58
5.6.240.0100.07720.48
5.6.230.0100.07020.62
5.6.220.0030.05320.57
5.6.210.0170.07020.61
5.6.200.0130.07321.02
5.6.190.0100.08320.93
5.6.180.0100.04320.98
5.6.170.0100.07020.96
5.6.160.0070.05021.02
5.6.150.0170.07321.11
5.6.140.0030.07720.95
5.6.130.0100.07020.94
5.6.120.0130.06321.02
5.6.110.0100.08321.01
5.6.100.0100.04721.03
5.6.90.0070.07721.14
5.6.80.0100.06720.43
5.6.70.0170.07320.33
5.6.60.0170.07020.47
5.6.50.0030.06320.33
5.6.40.0030.08720.48
5.6.30.0100.08020.29
5.6.20.0100.08020.36
5.6.10.0100.07720.30
5.6.00.0070.07020.32
5.5.380.0070.07720.43
5.5.370.0070.05020.53
5.5.360.0030.09020.34
5.5.350.0070.07720.41
5.5.340.0070.09320.73
5.5.330.0030.04320.73
5.5.320.0070.08020.75
5.5.310.0130.03320.72
5.5.300.0070.04020.91
5.5.290.0130.08020.73
5.5.280.0070.07320.79
5.5.270.0100.07720.71
5.5.260.0170.07720.81
5.5.250.0100.07020.60
5.5.240.0030.04020.24
5.5.230.0030.08020.10
5.5.220.0070.07320.28
5.5.210.0070.05720.27
5.5.200.0070.03720.21
5.5.190.0100.04720.23
5.5.180.0070.08020.20
5.5.160.0130.03320.12
5.5.150.0070.08020.15
5.5.140.0030.04020.21
5.5.130.0030.04320.23
5.5.120.0070.04020.11
5.5.110.0130.07720.26
5.5.100.0170.05720.17
5.5.90.0070.07019.96
5.5.80.0030.05720.08
5.5.70.0100.07720.07
5.5.60.0100.03720.07
5.5.50.0100.07320.05
5.5.40.0170.06720.04
5.5.30.0000.06019.91
5.5.20.0100.04020.05
5.5.10.0030.06020.07
5.5.00.0030.04720.04
5.4.450.0100.08019.36
5.4.440.0170.07319.30
5.4.430.0070.05719.45
5.4.420.0070.07719.55
5.4.410.0000.06019.22
5.4.400.0070.05018.95
5.4.390.0070.07719.12
5.4.380.0170.03719.05
5.4.370.0130.07018.98
5.4.360.0030.06718.81
5.4.350.0100.07019.06
5.4.340.0130.07018.98
5.4.320.0030.08018.98
5.4.310.0200.06018.96
5.4.300.0070.05019.00
5.4.290.0030.06319.16
5.4.280.0070.06318.89
5.4.270.0070.07319.11
5.4.260.0170.05018.78
5.4.250.0030.06318.89
5.4.240.0070.05719.15
5.4.230.0130.06318.91
5.4.220.0030.08019.13
5.4.210.0100.03718.96
5.4.200.0130.05719.12
5.4.190.0070.06019.11
5.4.180.0070.03318.91
5.4.170.0130.05718.80
5.4.160.0070.06018.88
5.4.150.0100.05018.79
5.4.140.0030.07016.28
5.4.130.0100.03716.27
5.4.120.0070.03016.36
5.4.110.0030.06716.22
5.4.100.0070.03016.36
5.4.90.0070.05716.43
5.4.80.0030.07316.36
5.4.70.0030.05716.23
5.4.60.0030.07316.36
5.4.50.0030.07316.34
5.4.40.0000.06716.24
5.4.30.0100.06716.31
5.4.20.0070.06316.32
5.4.10.0100.07016.31
5.4.00.0030.06315.78
5.3.290.0130.05715.73
5.3.280.0030.05715.73
5.3.270.0100.07015.73
5.3.260.0170.05715.73
5.3.250.0100.05715.73
5.3.240.0070.07015.73
5.3.230.0000.04015.73
5.3.220.0030.04015.73
5.3.210.0000.05015.73
5.3.200.0100.07015.73
5.3.190.0070.06715.73
5.3.180.0030.07715.73
5.3.170.0030.05715.73
5.3.160.0070.07715.73
5.3.150.0070.07315.73
5.3.140.0000.05715.73
5.3.130.0030.07015.73
5.3.120.0070.05715.73
5.3.110.0030.08715.73
5.3.100.0100.07015.73
5.3.90.0030.04015.73
5.3.80.0130.02715.73
5.3.70.0030.03715.73
5.3.60.0030.03715.73
5.3.50.0030.03315.73
5.3.40.0070.03015.73
5.3.30.0070.03315.73
5.3.20.0130.02715.73
5.3.10.0070.03015.73
5.3.00.0070.03715.73
5.2.170.0000.04015.73
5.2.160.0000.03315.73
5.2.150.0030.03315.73
5.2.140.0000.03715.73
5.2.130.0000.03015.73
5.2.120.0000.03315.73
5.2.110.0030.02715.73
5.2.100.0000.03015.73
5.2.90.0070.02315.73
5.2.80.0000.03015.73
5.2.70.0000.03015.73
5.2.60.0000.03015.73
5.2.50.0100.02015.73
5.2.40.0100.01715.73
5.2.30.0030.06015.73
5.2.20.0030.02715.73
5.2.10.0000.04315.73
5.2.00.0030.04015.73
5.1.60.0030.02715.73
5.1.50.0070.04315.73
5.1.40.0070.03715.73
5.1.30.0130.05315.73
5.1.20.0000.03315.73
5.1.10.0030.05315.73
5.1.00.0000.02715.73
5.0.50.0030.02015.73
5.0.40.0030.01715.73
5.0.30.0000.03015.73
5.0.20.0030.01715.73
5.0.10.0000.02015.73
5.0.00.0000.03315.73
4.4.90.0070.01015.73
4.4.80.0000.01715.73
4.4.70.0000.02315.73
4.4.60.0000.01715.73
4.4.50.0070.02315.73
4.4.40.0000.02315.73
4.4.30.0000.02715.73
4.4.20.0030.02015.73
4.4.10.0000.01715.73
4.4.00.0030.02315.73
4.3.110.0030.02015.73
4.3.100.0000.02015.73
4.3.90.0000.01715.73
4.3.80.0000.02315.73
4.3.70.0000.01315.73
4.3.60.0000.01315.73
4.3.50.0000.01715.73
4.3.40.0030.01715.73
4.3.30.0000.01715.73
4.3.20.0000.01715.73
4.3.10.0000.01715.73
4.3.00.0000.01715.73

preferences:
39.62 ms | 400 KiB | 5 Q