3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = null; var_dump(isset($null));

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)
8.3.60.0150.00318.03
8.3.50.0130.00721.97
8.3.40.0120.00618.53
8.3.30.0070.00718.82
8.3.20.0040.00420.20
8.3.10.0030.00623.67
8.3.00.0060.00319.01
8.2.180.0110.00716.38
8.2.170.0070.01122.96
8.2.160.0070.00722.25
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00421.05
8.2.110.0040.00421.96
8.2.100.0120.00019.51
8.2.90.0000.00919.05
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0060.00318.09
8.2.30.0000.00817.98
8.2.20.0070.00017.71
8.2.10.0040.00418.04
8.2.00.0040.00417.61
8.1.280.0140.00025.92
8.1.270.0080.00018.88
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.81
8.1.230.0000.01019.04
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00717.10
8.1.190.0000.00817.00
8.1.180.0040.00418.10
8.1.170.0040.00418.41
8.1.160.0000.00721.98
8.1.150.0050.00218.73
8.1.140.0040.00417.31
8.1.130.0000.00717.46
8.1.120.0000.00717.30
8.1.110.0000.00817.39
8.1.100.0070.00017.38
8.1.90.0040.00417.38
8.1.80.0070.00017.30
8.1.70.0030.00317.34
8.1.60.0050.00317.51
8.1.50.0000.00817.43
8.1.40.0040.00417.39
8.1.30.0000.00817.57
8.1.20.0040.00417.51
8.1.10.0000.00717.44
8.1.00.0040.00417.42
8.0.300.0070.00018.77
8.0.290.0050.00216.63
8.0.280.0040.00418.37
8.0.270.0000.00717.25
8.0.260.0030.00316.77
8.0.250.0030.00316.84
8.0.240.0000.00816.94
8.0.230.0030.00316.86
8.0.220.0000.00716.75
8.0.210.0040.00416.72
8.0.200.0000.00616.84
8.0.190.0050.00216.78
8.0.180.0040.00416.77
8.0.170.0000.00916.89
8.0.160.0000.00716.78
8.0.150.0000.00716.74
8.0.140.0000.00816.84
8.0.130.0030.00313.24
8.0.120.0040.00416.70
8.0.110.0050.00216.76
8.0.100.0000.00716.71
8.0.90.0000.00716.64
8.0.80.0090.00716.79
8.0.70.0000.00716.84
8.0.60.0040.00416.63
8.0.50.0040.00416.87
8.0.30.0080.01617.03
8.0.20.0080.01417.40
8.0.10.0040.00416.97
8.0.00.0140.00316.72
7.4.330.0020.00215.03
7.4.320.0000.00616.39
7.4.300.0030.00316.56
7.4.290.0030.00316.53
7.4.280.0070.00016.51
7.4.270.0030.00316.44
7.4.260.0040.00416.41
7.4.250.0080.00016.35
7.4.240.0030.00416.43
7.4.230.0030.00316.41
7.4.220.0090.00916.53
7.4.210.0140.00416.55
7.4.200.0000.00816.27
7.4.160.0090.00616.11
7.4.150.0110.00717.40
7.4.140.0050.01517.86
7.4.130.0090.01016.39
7.4.120.0090.00816.25
7.4.110.0130.00316.48
7.4.100.0090.00916.33
7.4.90.0130.00516.30
7.4.80.0130.01019.39
7.4.70.0070.01416.52
7.4.60.0060.00916.47
7.4.50.0000.00916.25
7.4.40.0040.01216.50
7.4.30.0110.01316.43
7.4.00.0030.01314.73
7.3.330.0050.00013.04
7.3.320.0000.00612.88
7.3.310.0000.00716.22
7.3.300.0030.00316.13
7.3.290.0100.00316.18
7.3.280.0110.00516.09
7.3.270.0070.01117.40
7.3.260.0160.00416.16
7.3.250.0110.00616.13
7.3.240.0130.00316.10
7.3.230.0060.01216.39
7.3.210.0060.01316.21
7.3.200.0130.01019.39
7.3.190.0090.00616.31
7.3.180.0160.00316.27
7.3.170.0100.00716.42
7.3.160.0080.00816.34
7.2.330.0110.00716.49
7.2.320.0060.01616.65
7.2.310.0000.01616.65
7.2.300.0080.00816.37
7.2.290.0110.00816.51
7.2.00.0090.00619.25
7.1.200.0000.01515.65
7.1.100.0070.00417.89
7.1.70.0070.00317.16
7.1.60.0040.01419.46
7.1.50.0240.01434.55
7.1.00.0000.08022.36
7.0.200.0050.00516.44
7.0.140.0070.03022.09
7.0.60.0130.08019.77
7.0.50.0100.08017.84
7.0.40.0100.08320.23
7.0.30.0230.05020.04
7.0.20.0170.04020.17
7.0.10.0100.08720.12
7.0.00.0100.06020.11
5.6.280.0030.07321.14
5.6.210.0070.08720.50
5.6.200.0030.08318.16
5.6.190.0100.05020.34
5.6.180.0270.04320.63
5.6.170.0230.03720.61
5.6.160.0000.04320.52
5.6.150.0070.03718.25
5.6.140.0030.03718.11
5.6.130.0130.07718.16
5.6.120.0070.07021.01
5.6.110.0130.07720.98
5.6.100.0130.06720.96
5.6.90.0170.07321.09
5.6.80.0070.08020.35
5.5.350.4000.04020.31
5.5.340.0030.04317.99
5.5.330.0000.09020.43
5.5.320.0330.07320.50
5.5.310.0170.04320.12
5.5.300.0000.04317.95
5.5.290.0070.07017.89
5.5.280.0000.04320.87
5.5.270.0000.05320.75
5.5.260.0100.08020.78
5.5.250.0070.06720.48
5.5.240.0000.07320.34
5.4.450.0870.06319.49
5.4.440.0900.05019.24
5.4.430.0630.06019.47
5.4.420.0700.04719.36
5.4.410.0630.05019.43
5.4.400.0730.04718.82
5.4.390.0200.05318.55
5.4.380.0200.05718.53
5.4.370.0130.06018.46
5.4.360.0230.04718.56
5.4.350.0300.05018.70
5.4.340.0130.05718.74
5.4.320.0100.06318.75
5.4.310.0130.05718.79
5.4.300.0270.04718.48
5.4.290.0070.06318.65
5.4.280.0300.05018.64
5.4.270.0200.05018.75
5.4.260.0330.04018.49
5.4.250.0270.05018.48
5.4.240.0230.05318.71
5.4.230.0200.05318.60
5.4.220.0270.04718.73
5.4.210.0300.05018.48
5.4.200.0300.04016.45
5.4.190.0230.05018.51
5.4.180.0170.05318.60
5.4.170.0270.06318.51
5.4.160.0270.05318.66
5.4.150.0230.05318.59
5.4.140.0200.05016.23
5.4.130.0100.05716.31
5.4.120.0200.05316.21
5.4.110.0330.03716.29
5.4.100.0300.04316.29
5.4.90.0100.06016.08
5.4.80.0200.04716.23
5.4.70.0070.06316.10
5.4.60.0230.04716.24
5.4.50.0130.05016.23
5.4.40.0100.06016.05
5.4.30.0200.05016.05
5.4.20.0130.05716.02
5.4.10.0270.05016.15
5.4.00.0170.05315.70
5.3.290.0170.06314.73
5.3.280.0270.04714.54
5.3.270.0170.06014.59
5.3.260.0170.05714.59
5.3.250.0300.06714.58
5.3.240.0270.05014.53
5.3.230.0300.04714.48
5.3.220.0200.05314.59
5.3.210.0200.05314.56
5.3.200.0270.05314.54
5.3.190.0230.05314.49
5.3.180.0170.06014.56
5.3.170.0130.05714.54
5.3.160.0300.05014.57
5.3.150.0200.06014.56
5.3.140.0200.06014.45
5.3.130.0230.05314.45
5.3.120.0170.08314.49
5.3.110.0100.06314.52
5.3.100.0300.04314.09
5.3.90.0170.05713.93
5.3.80.0130.07014.00
5.3.70.0300.05313.98
5.3.60.0230.05014.03
5.3.50.0200.05313.84
5.3.40.0130.05713.88
5.3.30.0200.05013.88
5.3.20.0300.06313.63
5.3.10.0200.05013.64
5.3.00.0170.06313.73
5.2.170.0170.04711.12
5.2.160.0170.04711.07
5.2.150.0200.04011.09
5.2.140.0270.03711.12
5.2.130.0130.04711.01
5.2.120.0200.04011.25
5.2.110.0170.04711.13
5.2.100.0100.04711.06
5.2.90.0030.05311.09
5.2.80.0270.03011.13
5.2.70.0230.03711.00
5.2.60.0270.03310.96
5.2.50.0100.04710.99
5.2.40.0170.04010.95
5.2.30.0130.04010.92
5.2.20.0070.04710.91
5.2.10.0100.04310.88
5.2.00.0130.04010.68
5.1.60.0100.04710.06
5.1.50.0100.04310.00
5.1.40.0130.04010.08
5.1.30.0230.03310.32
5.1.20.0200.03310.37
5.1.10.0100.04710.05
5.1.00.0200.03310.15
5.0.50.0230.0208.56
5.0.40.0070.0308.43
5.0.30.0100.0478.23
5.0.20.0070.0338.27
5.0.10.0100.0308.24
5.0.00.0130.0408.33
4.4.90.0170.0135.88
4.4.80.0100.0205.83
4.4.70.0030.0275.89
4.4.60.0170.0205.90
4.4.50.0030.0335.87
4.4.40.0100.0305.86
4.4.30.0100.0305.91
4.4.20.0100.0235.96
4.4.10.0070.0235.95
4.4.00.0030.0375.93
4.3.110.0100.0205.86
4.3.100.0070.0235.79
4.3.90.0100.0275.84
4.3.80.0070.0335.89
4.3.70.0100.0175.77
4.3.60.0070.0205.78
4.3.50.0070.0235.78
4.3.40.0030.0375.77
4.3.30.0030.0234.89
4.3.20.0070.0274.89
4.3.10.0070.0204.89
4.3.00.0170.0207.98

preferences:
65.18 ms | 401 KiB | 5 Q