3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ''; $b = 0; $c = null; var_dump($a != null); var_dump($b != null); var_dump($c != 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)
8.3.40.0110.00418.71
8.3.30.0030.01019.09
8.3.20.0050.00220.00
8.3.10.0080.00022.15
8.3.00.0040.00422.44
8.2.170.0070.00722.96
8.2.160.0140.00320.99
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0050.00317.50
8.2.110.0100.00022.24
8.2.100.0040.00719.51
8.2.90.0090.00019.05
8.2.80.0000.00818.04
8.2.70.0050.00317.38
8.2.60.0080.00017.93
8.2.50.0000.00918.07
8.2.40.0040.00418.34
8.2.30.0000.00718.04
8.2.20.0020.00517.57
8.2.10.0000.00819.48
8.2.00.0080.00017.74
8.1.270.0060.00322.05
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0080.00023.84
8.1.230.0080.00419.22
8.1.220.0080.00017.78
8.1.210.0040.00418.77
8.1.200.0030.00717.34
8.1.190.0000.00817.43
8.1.180.0050.00318.10
8.1.170.0040.00418.57
8.1.160.0030.00621.92
8.1.150.0030.00618.57
8.1.140.0000.00817.50
8.1.130.0000.00817.93
8.1.120.0070.00017.46
8.1.110.0030.00517.34
8.1.100.0000.00717.33
8.1.90.0000.00717.39
8.1.80.0050.00317.38
8.1.70.0070.00017.41
8.1.60.0040.00417.60
8.1.50.0040.00417.51
8.1.40.0000.00917.56
8.1.30.0040.00417.60
8.1.20.0060.00317.59
8.1.10.0060.00317.37
8.1.00.0060.00317.25
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0030.00318.45
8.0.270.0050.00317.17
8.0.260.0030.00316.82
8.0.250.0030.00517.02
8.0.240.0070.00016.99
8.0.230.0030.00316.84
8.0.220.0030.00316.87
8.0.210.0030.00316.83
8.0.200.0030.00316.91
8.0.190.0040.00416.97
8.0.180.0040.00416.96
8.0.170.0000.00816.81
8.0.160.0040.00416.96
8.0.150.0000.00716.78
8.0.140.0040.00416.89
8.0.130.0000.00813.35
8.0.120.0080.00016.84
8.0.110.0000.00716.84
8.0.100.0040.00416.85
8.0.90.0000.00716.95
8.0.80.0090.00616.79
8.0.70.0040.00416.69
8.0.60.0000.00716.69
8.0.50.0000.00716.84
8.0.30.0100.00817.17
8.0.20.0060.01317.40
8.0.10.0000.00716.96
8.0.00.0090.00816.85
7.4.330.0050.00015.00
7.4.320.0000.00616.60
7.4.300.0000.00616.59
7.4.290.0070.00016.59
7.4.280.0070.00416.55
7.4.270.0070.00016.51
7.4.260.0000.00716.59
7.4.250.0000.00716.57
7.4.240.0050.00216.51
7.4.230.0030.00316.46
7.4.220.0090.00616.41
7.4.210.0110.00816.54
7.4.200.0000.00716.67
7.4.190.0030.00316.73
7.4.160.0030.01316.68
7.4.150.0080.01017.40
7.4.140.0070.01117.86
7.4.130.0120.00516.46
7.4.120.0140.00516.58
7.4.110.0100.00616.64
7.4.100.0140.00416.51
7.4.90.0160.00816.59
7.4.80.0130.01019.39
7.4.70.0040.01216.53
7.4.60.0060.01116.38
7.4.50.0040.00416.35
7.4.40.0070.01122.77
7.4.30.0070.01016.52
7.4.00.0000.00814.66
7.3.330.0070.00013.05
7.3.320.0000.00513.04
7.3.310.0040.00416.14
7.3.300.0030.00316.00
7.3.290.0100.00316.09
7.3.280.0050.01116.21
7.3.270.0100.01017.40
7.3.260.0230.00716.18
7.3.250.0090.00716.35
7.3.240.0120.00616.22
7.3.230.0100.00916.54
7.3.210.0080.00816.05
7.3.200.0110.00719.39
7.3.190.0060.01016.36
7.3.180.0180.00316.46
7.3.170.0030.01316.48
7.3.160.0110.01116.19
7.3.120.0030.00714.66
7.2.330.0070.01016.24
7.2.320.0040.01516.39
7.2.310.0140.00316.43
7.2.300.0070.01016.23
7.2.290.0130.00316.34
7.2.00.0040.00818.94
7.1.100.0030.00917.77
7.1.70.0000.01016.80
7.1.60.0130.00317.22
7.1.50.0060.00616.57
7.1.00.0030.07722.32
7.0.200.0060.01116.77
7.0.140.0000.07022.00
7.0.60.0070.04319.90
7.0.50.0070.03317.87
7.0.40.0100.07020.06
7.0.30.0500.07320.13
7.0.20.0300.05320.20
7.0.10.0170.07720.21
7.0.00.0030.04720.12
5.6.280.0100.06321.11
5.6.210.0030.08720.64
5.6.200.0130.08018.19
5.6.190.0170.07320.41
5.6.180.0400.03720.32
5.6.170.0300.05020.49
5.6.160.0070.08720.38
5.6.150.0130.07718.18
5.6.140.0070.04718.18
5.6.130.0000.05018.09
5.6.120.0130.03721.08
5.6.110.0100.07320.98
5.6.100.0100.09021.12
5.6.90.0100.08721.09
5.6.80.0100.07720.28
5.5.350.0200.07720.37
5.5.340.0100.07018.02
5.5.330.0030.04320.21
5.5.320.0130.04320.24
5.5.310.0230.07720.50
5.5.300.0070.06317.92
5.5.290.0100.08717.88
5.5.280.0030.08720.89
5.5.270.0100.08020.82
5.5.260.0130.07720.95
5.5.250.0070.08320.68
5.5.240.0170.08320.18
5.4.450.0400.03719.48
5.4.440.1270.03719.39
5.4.430.1070.03319.40
5.4.420.0300.03719.42
5.4.410.1030.04018.97
5.4.400.0570.03719.09
5.4.390.0030.04019.09
5.4.380.0270.05718.67
5.4.370.0300.05718.62
5.4.360.0330.05318.77
5.4.350.0230.05718.72
5.4.340.0630.05018.64
5.4.320.0080.03912.45
5.4.310.0080.03612.45
5.4.300.0080.03612.45
5.4.290.0070.03612.45
5.4.280.0050.03712.34
5.4.270.0100.05718.96
5.4.260.0170.05318.95
5.4.250.0130.04719.02
5.4.240.0170.06718.93
5.4.230.0100.05318.94
5.4.220.0170.05019.05
5.4.210.0070.06318.98
5.4.200.0130.07018.90
5.4.190.0170.06718.92
5.4.180.0130.06719.04
5.4.170.0100.07318.88
5.4.160.0100.05318.95
5.4.150.0170.06318.86
5.4.140.0200.06316.52
5.4.130.0030.05316.48
5.4.120.0070.05316.46
5.4.110.0070.06016.54
5.4.100.0170.06716.33
5.4.90.0100.05316.27
5.4.80.0130.06716.32
5.4.70.0030.07316.32
5.4.60.0070.05016.38
5.4.50.0070.05316.35
5.4.40.0030.06716.49
5.4.30.0100.05016.29
5.4.20.0070.05716.25
5.4.10.0070.05716.38
5.4.00.0130.04315.86
5.3.290.0100.04512.80
5.3.280.0200.06314.75
5.3.270.0070.05714.59
5.3.260.0070.05314.41
5.3.250.0100.07014.76
5.3.240.0100.06314.59
5.3.230.0200.04714.55
5.3.220.0170.06314.63
5.3.210.0070.05314.73
5.3.200.0070.05714.55
5.3.190.0200.04714.73
5.3.180.0130.06314.70
5.3.170.0130.05314.54
5.3.160.0130.06014.73
5.3.150.0200.04714.75
5.3.140.0070.05014.48
5.3.130.0100.06014.64
5.3.120.0070.05314.52
5.3.110.0100.06014.47
5.3.100.0100.05314.09
5.3.90.0200.06014.16
5.3.80.0170.05014.19
5.3.70.0170.06014.00
5.3.60.0230.03313.98
5.3.50.0100.05014.09
5.3.40.0070.07013.93
5.3.30.0070.05313.97
5.3.20.0070.05013.86
5.3.10.0130.06313.73
5.3.00.0100.05713.81
5.2.170.0070.04711.30
5.2.160.0070.04311.24
5.2.150.0030.04311.36
5.2.140.0030.05011.24
5.2.130.0170.04710.91
5.2.120.0070.05311.08
5.2.110.0070.04311.03
5.2.100.0100.04311.04
5.2.90.0100.04011.22
5.2.80.0100.04011.23
5.2.70.0130.05011.31
5.2.60.0000.05310.98
5.2.50.0070.04011.16
5.2.40.0030.04011.19
5.2.30.0170.03010.89
5.2.20.0170.03011.06
5.2.10.0000.04711.15
5.2.00.0100.03710.99
5.1.60.0070.03310.25
5.1.50.0200.02310.25
5.1.40.0030.04310.25
5.1.30.0030.03710.43
5.1.20.0130.03310.25
5.1.10.0070.03310.25
5.1.00.0030.03710.25
5.0.50.0030.03010.25
5.0.40.0100.03010.25
5.0.30.0100.04710.25
5.0.20.0030.03710.25
5.0.10.0070.03010.25
5.0.00.0070.04310.25
4.4.90.0030.02010.25
4.4.80.0030.02310.25
4.4.70.0000.02310.25
4.4.60.0000.02710.25
4.4.50.0070.02710.25
4.4.40.0170.03310.25
4.4.30.0030.02010.25
4.4.20.0130.01710.25
4.4.10.0030.02310.25
4.4.00.0030.04710.25
4.3.110.0000.02310.25
4.3.100.0030.02010.25
4.3.90.0000.03310.25
4.3.80.0070.04310.25
4.3.70.0030.02710.25
4.3.60.0070.02710.25
4.3.50.0000.02710.25
4.3.40.0030.04310.25
4.3.30.0000.03010.25
4.3.20.0030.02310.25
4.3.10.0070.01710.25
4.3.00.0230.01715.58

preferences:
64.35 ms | 400 KiB | 5 Q