3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode("{'foo': NULL}"), json_decode("{'foo': 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)
8.3.40.0140.00018.52
8.3.30.0100.00318.92
8.3.20.0000.00720.18
8.3.10.0080.00020.28
8.3.00.0060.00617.25
8.2.170.0110.00322.96
8.2.160.0120.00320.39
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00022.11
8.2.110.0000.00922.26
8.2.100.0090.00317.78
8.2.90.0040.00418.97
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0030.00617.75
8.2.50.0060.00318.07
8.2.40.0030.00618.03
8.2.30.0000.00719.43
8.2.20.0040.00417.63
8.2.10.0000.00817.97
8.2.00.0050.00217.53
8.1.270.0040.00422.01
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0040.00423.79
8.1.230.0060.00619.14
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.00917.23
8.1.190.0000.00717.10
8.1.180.0050.00218.10
8.1.170.0080.00018.38
8.1.160.0040.00421.98
8.1.150.0050.00318.75
8.1.140.0070.00017.23
8.1.130.0040.00417.80
8.1.120.0070.00017.33
8.1.110.0070.00017.27
8.1.100.0040.00417.32
8.1.90.0090.00017.28
8.1.80.0000.00717.32
8.1.70.0000.00717.19
8.1.60.0040.00417.40
8.1.50.0050.00317.32
8.1.40.0070.00017.25
8.1.30.0080.00017.39
8.1.20.0070.00017.34
8.1.10.0040.00417.27
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0000.00718.31
8.0.270.0060.00317.07
8.0.260.0070.00017.15
8.0.250.0000.00716.73
8.0.240.0040.00416.80
8.0.230.0030.00316.77
8.0.220.0000.00716.75
8.0.210.0070.00016.75
8.0.200.0030.00316.83
8.0.190.0040.00416.85
8.0.180.0030.00316.80
8.0.170.0040.00416.79
8.0.160.0030.00416.78
8.0.150.0040.00416.73
8.0.140.0000.00716.61
8.0.130.0000.00613.24
8.0.120.0040.00416.63
8.0.110.0050.00316.62
8.0.100.0000.00716.81
8.0.90.0000.00716.74
8.0.80.0060.00916.79
8.0.70.0000.00716.63
8.0.60.0040.00416.77
8.0.50.0040.00416.70
8.0.30.0100.00816.85
8.0.20.0120.00817.40
8.0.10.0040.00416.74
8.0.00.0070.01016.63
7.4.330.0060.00015.00
7.4.320.0060.00016.38
7.4.300.0000.00716.36
7.4.290.0040.00416.41
7.4.280.0040.00416.43
7.4.270.0030.00316.31
7.4.260.0060.00316.35
7.4.250.0040.00416.35
7.4.240.0020.00516.37
7.4.230.0040.00416.16
7.4.220.0090.00916.39
7.4.210.0070.00716.48
7.4.200.0030.00316.26
7.4.160.0060.00916.59
7.4.150.0140.00417.40
7.4.140.0030.01417.86
7.4.130.0100.01216.26
7.4.120.0070.01016.38
7.4.110.0100.00616.25
7.4.100.0060.01016.33
7.4.90.0100.01016.28
7.4.80.0170.00019.39
7.4.70.0160.00316.35
7.4.60.0100.00716.28
7.4.50.0000.00416.58
7.4.40.0140.00716.27
7.4.30.0120.01216.24
7.4.00.0060.01014.76
7.3.330.0030.00313.07
7.3.320.0000.00512.90
7.3.310.0050.00316.12
7.3.300.0000.00716.11
7.3.290.0160.00316.03
7.3.280.0090.00616.06
7.3.270.0100.00617.40
7.3.260.0100.00716.14
7.3.250.0110.00516.31
7.3.240.0100.00716.17
7.3.230.0100.00616.39
7.3.210.0060.01216.27
7.3.200.0150.01219.39
7.3.190.0110.00716.09
7.3.180.0090.00616.10
7.3.170.0060.00916.27
7.3.160.0030.01216.22
7.3.120.0070.01114.61
7.3.110.0030.00914.72
7.3.100.0070.00714.63
7.3.90.0060.00914.70
7.3.80.0100.00314.70
7.3.70.0000.01114.63
7.3.60.0030.01014.59
7.3.50.0080.00414.60
7.3.40.0040.00714.66
7.3.30.0060.00614.53
7.3.20.0080.00616.47
7.3.10.0060.00516.44
7.3.00.0060.00816.41
7.2.330.0100.00716.22
7.2.320.0120.00616.36
7.2.310.0120.00616.29
7.2.300.0110.01116.54
7.2.290.0070.00716.48
7.2.250.0030.01415.04
7.2.240.0090.00614.80
7.2.230.0030.01014.92
7.2.220.0040.00714.91
7.2.210.0080.00514.67
7.2.200.0060.00914.71
7.2.190.0100.00314.70
7.2.180.0070.00714.81
7.2.170.0050.00514.80
7.2.130.0060.00916.69
7.2.120.0130.00016.43
7.2.110.0070.00316.64
7.2.100.0060.00616.43
7.2.90.0100.00316.59
7.2.80.0060.00316.45
7.2.70.0120.00616.45
7.2.60.0070.00716.31
7.2.50.0070.00716.62
7.2.40.0070.01116.70
7.2.30.0120.00416.83
7.2.20.0030.00616.41
7.2.10.0040.00816.47
7.2.00.0060.00316.66
7.1.330.0060.00615.61
7.1.320.0000.01515.37
7.1.310.0100.00315.69
7.1.300.0080.00415.80
7.1.290.0030.00615.36
7.1.280.0030.00915.68
7.1.270.0040.01115.66
7.1.260.0060.00315.64
7.1.250.0070.00315.84
7.1.200.0040.00815.73
7.1.100.0070.00717.95
7.1.70.0100.00016.97
7.1.60.0100.01419.61
7.1.50.0180.01534.75
7.1.00.0000.08022.48
7.0.200.0030.00716.33
7.0.140.0030.07322.08
7.0.60.0170.06319.91
7.0.50.0030.04017.80
7.0.40.0100.07320.20
7.0.30.0230.04020.04
7.0.20.0270.05320.16
7.0.10.0000.06320.20
7.0.00.0170.06020.00
5.6.280.0070.07020.76
5.6.210.0130.06320.49
5.6.200.0030.08318.22
5.6.190.0070.03720.41
5.6.180.0430.06020.41
5.6.170.0170.08720.54
5.6.160.0000.05020.48
5.6.150.0030.08718.23
5.6.140.0070.05318.20
5.6.130.0070.08718.14
5.6.120.0170.07020.88
5.6.110.0030.04320.98
5.6.100.0130.07020.96
5.6.90.0030.05321.12
5.6.80.0200.07020.50
5.5.350.0130.08720.34
5.5.340.0200.05717.96
5.5.330.0200.07320.57
5.5.320.0370.06320.32
5.5.310.0200.05720.20
5.5.300.0030.04718.00
5.5.290.0000.08017.91
5.5.280.0200.07020.89
5.5.270.0130.06720.84
5.5.260.0100.08020.84
5.5.250.0030.07720.65
5.5.240.0130.07720.32
5.4.450.0930.06319.24
5.4.440.0570.05319.21
5.4.430.0600.04719.09
5.4.420.0100.05019.42
5.4.410.0330.04018.98
5.4.400.0200.04318.89
5.4.390.0430.04719.24
5.4.380.0370.04718.72
5.4.370.0430.05318.77
5.4.360.0430.05018.75
5.4.350.0430.05718.72
5.4.340.0200.07018.78
5.4.320.0070.03612.45
5.4.310.0110.03712.45
5.4.300.0110.03912.45
5.4.290.0100.03512.45
5.4.280.0040.03812.34
5.4.270.0040.04012.35
5.4.260.0050.03912.34
5.4.250.0080.03712.35
5.4.240.0080.03512.35
5.4.230.0050.03812.34
5.4.220.0060.03612.34
5.4.210.0050.03712.34
5.4.200.0050.03912.34
5.4.190.0080.03912.33
5.4.180.0060.03912.33
5.4.170.0080.03412.34
5.4.160.0050.03712.34
5.4.150.0070.03912.34
5.4.140.0070.03612.02
5.4.130.0060.03612.01
5.4.120.0080.03511.96
5.4.110.0050.05211.96
5.4.100.0080.03311.96
5.4.90.0090.03711.96
5.4.80.0040.04111.96
5.4.70.0040.03711.96
5.4.60.0070.03811.96
5.4.50.0060.03411.96
5.4.40.0040.03711.95
5.4.30.0100.03411.95
5.4.20.0080.04711.95
5.4.10.0060.03511.95
5.4.00.0040.03811.44
5.3.290.0080.03912.80
5.3.280.0050.04012.71
5.3.270.0080.05212.72
5.3.260.0080.03712.72
5.3.250.0110.03612.72
5.3.240.0050.04012.72
5.3.230.0040.04012.71
5.3.220.0060.03712.68
5.3.210.0090.03512.68
5.3.200.0060.03612.68
5.3.190.0080.03612.68
5.3.180.0060.04112.68
5.3.170.0060.04912.67
5.3.160.0060.03612.68
5.3.150.0030.04012.67
5.3.140.0080.04412.66
5.3.130.0050.03912.66
5.3.120.0070.03712.66
5.3.110.0050.03912.66
5.3.100.0070.03412.12
5.3.90.0060.03512.08
5.3.80.0110.02912.07
5.3.70.0070.03512.07
5.3.60.0050.04212.07
5.3.50.0060.03612.00
5.3.40.0070.03512.00
5.3.30.0050.03511.95
5.3.20.0050.03511.72
5.3.10.0060.03311.69
5.3.00.0050.03611.67
5.2.170.0060.0299.18
5.2.160.0030.0339.18
5.2.150.0020.0389.18
5.2.140.0060.0309.17
5.2.130.0020.0309.14
5.2.120.0080.0249.13
5.2.110.0060.0349.14
5.2.100.0070.0309.14
5.2.90.0060.0279.14
5.2.80.0070.0289.13
5.2.70.0020.0329.13
5.2.60.0070.0289.09
5.2.50.0010.0339.05
5.2.40.0040.0349.03
5.2.30.0060.0319.01
5.2.20.0090.0318.99
5.2.10.0050.0288.91
5.2.00.0050.0338.77
5.1.60.0040.0238.06
5.1.50.0050.0238.06
5.1.40.0040.0258.04
5.1.30.0030.0298.39
5.1.20.0020.0308.41
5.1.10.0040.0278.14
5.1.00.0040.0268.14
5.0.50.0040.0206.61
5.0.40.0050.0186.47
5.0.30.0030.0316.29
5.0.20.0050.0176.26
5.0.10.0030.0256.24
5.0.00.0050.0326.23
4.4.90.0020.0164.78
4.4.80.0050.0154.76
4.4.70.0020.0154.75
4.4.60.0020.0164.76
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0010.0174.76
4.4.20.0040.0204.84
4.4.10.0040.0174.85
4.4.00.0030.0254.76
4.3.110.0020.0164.67
4.3.100.0040.0134.66
4.3.90.0030.0174.64
4.3.80.0040.0264.58
4.3.70.0020.0144.63
4.3.60.0030.0144.63
4.3.50.0030.0194.63
4.3.40.0060.0254.54
4.3.30.0040.0133.27
4.3.20.0020.0153.25
4.3.10.0000.0173.21
4.3.00.0070.01316.72

preferences:
47.59 ms | 404 KiB | 6 Q