3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data[] = null; $data[] = 0; $data[] = 1; $data[] = true; $data[] = false; foreach($data as $value) { echo "is_null ( ", var_export($value, true), " ) = ", is_null($value), " \n"; }

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)
8.3.60.0070.00718.43
8.3.50.0240.00722.17
8.3.40.0110.00318.89
8.3.30.0040.01119.22
8.3.20.0040.00420.20
8.3.10.0040.00421.80
8.3.00.0090.00017.80
8.2.180.0150.00718.30
8.2.170.0070.00722.96
8.2.160.0030.01020.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0060.00320.96
8.2.110.0070.00420.98
8.2.100.0040.00818.09
8.2.90.0030.00619.23
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0040.00420.07
8.2.30.0030.00618.17
8.2.20.0000.00717.56
8.2.10.0040.00418.04
8.2.00.0070.00017.67
8.1.280.0110.00325.92
8.1.270.0040.00423.83
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.14
8.1.230.0040.00718.97
8.1.220.0030.00517.74
8.1.210.0030.00518.77
8.1.200.0100.00017.36
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0000.00818.57
8.1.160.0000.00721.97
8.1.150.0070.00018.92
8.1.140.0040.00417.50
8.1.130.0000.00717.73
8.1.120.0050.00217.43
8.1.110.0050.00317.34
8.1.100.0000.00817.35
8.1.90.0110.00017.32
8.1.80.0050.00317.50
8.1.70.0030.00317.35
8.1.60.0040.00417.54
8.1.50.0040.00417.50
8.1.40.0080.00317.56
8.1.30.0000.00917.61
8.1.20.0040.00417.57
8.1.10.0040.00417.39
8.1.00.0000.00717.41
8.0.300.0070.00018.77
8.0.290.0080.00016.75
8.0.280.0070.00018.38
8.0.270.0000.00717.21
8.0.260.0080.00017.17
8.0.250.0030.00316.99
8.0.240.0050.00216.90
8.0.230.0070.00016.97
8.0.220.0000.00716.89
8.0.210.0030.00316.79
8.0.200.0080.00016.81
8.0.190.0040.00316.99
8.0.180.0000.00716.82
8.0.170.0060.00316.84
8.0.160.0040.00416.93
8.0.150.0070.00016.75
8.0.140.0040.00416.82
8.0.130.0030.00313.29
8.0.120.0000.00916.84
8.0.110.0040.00416.85
8.0.100.0080.00016.77
8.0.90.0000.00716.76
8.0.80.0040.01116.86
8.0.70.0000.00716.91
8.0.60.0040.00416.74
8.0.50.0050.00316.78
8.0.30.0140.00917.21
8.0.20.0050.01617.40
8.0.10.0080.00016.98
8.0.00.0070.01016.92
7.4.330.0030.00315.05
7.4.320.0030.00316.58
7.4.300.0030.00316.41
7.4.290.0070.00316.39
7.4.280.0070.00016.53
7.4.270.0000.00716.57
7.4.260.0050.00316.41
7.4.250.0040.00416.55
7.4.240.0020.00516.53
7.4.230.0000.00716.41
7.4.220.0160.00316.54
7.4.210.0070.00716.65
7.4.200.0040.00416.43
7.4.160.0040.01116.58
7.4.150.0140.01117.40
7.4.140.0090.00917.86
7.4.130.0140.00216.51
7.4.120.0110.00616.59
7.4.110.0100.01016.55
7.4.100.0060.01616.39
7.4.90.0030.01516.50
7.4.80.0070.01019.39
7.4.70.0130.00416.52
7.4.60.0070.01016.63
7.4.50.0040.00416.15
7.4.40.0080.00816.46
7.4.30.0140.00316.70
7.4.00.0050.00914.97
7.3.330.0000.00513.14
7.3.320.0000.00513.13
7.3.310.0070.00016.13
7.3.300.0030.00316.30
7.3.290.0100.00716.26
7.3.280.0110.00616.30
7.3.270.0120.00617.40
7.3.260.0140.00316.34
7.3.250.0120.00616.37
7.3.240.0120.00916.58
7.3.230.0110.00716.55
7.3.210.0070.01416.35
7.3.200.0090.00919.39
7.3.190.0140.00716.52
7.3.180.0090.00616.33
7.3.170.0110.00716.50
7.3.160.0030.01216.68
7.3.120.0050.00714.75
7.3.110.0100.00714.82
7.3.100.0100.00715.04
7.3.90.0030.01314.78
7.3.80.0110.00415.00
7.3.70.0140.00314.73
7.3.60.0060.00614.88
7.3.50.0030.00614.90
7.3.40.0030.01014.68
7.3.30.0090.00014.73
7.3.20.0040.00716.86
7.3.10.0110.00416.70
7.3.00.0130.00016.57
7.2.330.0110.00716.72
7.2.320.0170.00016.66
7.2.310.0040.01316.68
7.2.300.0090.01516.34
7.2.290.0130.01016.45
7.2.250.0040.01415.01
7.2.240.0060.01315.19
7.2.230.0090.00615.25
7.2.220.0030.00914.73
7.2.210.0090.00615.03
7.2.200.0000.01314.79
7.2.190.0060.00914.74
7.2.180.0090.00614.80
7.2.170.0120.00415.05
7.2.60.0120.00316.80
7.2.00.0090.00019.30
7.1.330.0070.01015.62
7.1.320.0120.00315.91
7.1.310.0040.01115.86
7.1.300.0000.01315.83
7.1.290.0060.01015.72
7.1.280.0000.01415.71
7.1.270.0030.01215.93
7.1.260.0060.00615.50
7.1.200.0060.00615.66
7.1.100.0080.01218.13
7.1.70.0040.00417.13
7.1.60.0070.01319.25
7.1.50.0060.01916.79
7.1.00.0030.08722.48
7.0.200.0000.00716.88
7.0.140.0070.07022.18
7.0.60.0070.05719.86
7.0.50.0070.05017.89
7.0.40.0130.07020.40
7.0.30.0270.05020.20
7.0.20.0230.05320.18
7.0.10.0100.08320.02
7.0.00.0070.07020.32
5.6.280.0100.06721.07
5.6.210.0100.03320.66
5.6.200.0070.04718.11
5.6.190.0130.08020.33
5.6.180.0100.04720.64
5.6.170.0100.04720.47
5.6.160.0130.07720.44
5.6.150.0130.04718.18
5.6.140.0000.08018.15
5.6.130.0030.05018.12
5.6.120.0130.05721.01
5.6.110.0130.08020.98
5.6.100.0030.07720.98
5.6.90.0100.05020.98
5.6.80.0070.05020.37
5.6.70.3130.03020.48
5.5.350.0130.07720.42
5.5.340.0100.07317.99
5.5.330.0030.07320.21
5.5.320.2900.04320.18
5.5.310.0270.05320.32
5.5.300.0100.07717.95
5.5.290.0200.06317.91
5.5.280.0030.04720.76
5.5.270.0130.08020.79
5.5.260.0130.03320.67
5.5.250.0100.08020.57
5.5.240.0170.03020.23
5.4.450.0230.04319.23
5.4.440.0400.03719.46
5.4.430.0030.03719.23
5.4.420.0400.04019.45
5.4.410.0370.03719.32
5.4.400.0200.03719.22
5.4.390.0230.03719.08
5.4.380.0800.05018.68
5.4.370.1070.08018.67
5.4.360.1070.04318.56
5.4.350.0930.05718.61
5.4.340.1000.04318.71
5.4.320.0110.03612.46
5.4.310.0100.04912.45
5.4.300.0080.04212.46
5.4.290.0060.03712.45
5.4.280.0060.03412.35
5.4.270.0060.03512.35
5.4.260.0040.04112.35
5.4.250.0030.04612.35
5.4.240.0090.04312.35
5.4.230.0100.04012.34
5.4.220.0100.03112.34
5.4.210.0080.04512.34
5.4.200.0040.04012.34
5.4.190.0090.04212.34
5.4.180.0060.03512.34
5.4.170.0050.03712.35
5.4.160.0060.03812.34
5.4.150.0040.04012.34
5.4.140.0050.04012.03
5.4.130.0080.05212.02
5.4.120.0100.04711.97
5.4.110.0050.03911.96
5.4.100.0080.04311.96
5.4.90.0080.04111.97
5.4.80.0080.03511.96
5.4.70.0080.04511.97
5.4.60.0080.04011.96
5.4.50.0070.03911.96
5.4.40.0070.03311.96
5.4.30.0050.03511.95
5.4.20.0060.03411.95
5.4.10.0050.03711.95
5.4.00.0080.03311.44
5.3.290.0070.03912.80
5.3.280.0040.03912.71
5.3.270.0090.04012.72
5.3.260.0080.03912.72
5.3.250.0060.04612.72
5.3.240.0050.04612.71
5.3.230.0040.03912.71
5.3.220.0090.04112.68
5.3.210.0060.03912.68
5.3.200.0090.03912.68
5.3.190.0080.04412.68
5.3.180.0040.03912.67
5.3.170.0080.03412.67
5.3.160.0060.03712.67
5.3.150.0050.03912.67
5.3.140.0090.03412.66
5.3.130.0060.05012.66
5.3.120.0090.03612.66
5.3.110.0040.04012.66
5.3.100.0030.03912.12
5.3.90.0050.04612.08
5.3.80.0090.03712.07
5.3.70.0020.04012.07
5.3.60.0050.03612.06
5.3.50.0040.04612.00
5.3.40.0060.03712.00
5.3.30.0080.03211.95
5.3.20.0090.03411.73
5.3.10.0060.03411.70
5.3.00.0050.03911.68
5.2.170.0030.0329.18
5.2.160.0040.0309.18
5.2.150.0040.0319.18
5.2.140.0060.0299.18
5.2.130.0060.0289.13
5.2.120.0040.0309.14
5.2.110.0060.0289.14
5.2.100.0030.0309.14
5.2.90.0040.0309.14
5.2.80.0040.0319.14
5.2.70.0060.0299.14
5.2.60.0020.0339.09
5.2.50.0040.0309.06
5.2.40.0110.0389.04
5.2.30.0090.0319.01
5.2.20.0090.0259.00
5.2.10.0040.0298.93
5.2.00.0040.0308.78
5.1.60.0070.0298.06
5.1.50.0050.0298.06
5.1.40.0060.0278.04
5.1.30.0070.0248.40
5.1.20.0020.0298.42
5.1.10.0030.0268.14
5.1.00.0080.0338.14
5.0.50.0070.0246.62
5.0.40.0030.0256.48
5.0.30.0040.0306.29
5.0.20.0050.0286.26
5.0.10.0030.0206.24
5.0.00.0040.0316.23
4.4.90.0020.0244.78
4.4.80.0050.0184.75
4.4.70.0030.0164.75
4.4.60.0030.0154.75
4.4.50.0060.0204.77
4.4.40.0030.0244.71
4.4.30.0020.0244.76
4.4.20.0030.0274.84
4.4.10.0050.0204.85
4.4.00.0040.0284.76
4.3.110.0050.0184.67
4.3.100.0030.0194.67
4.3.90.0040.0234.63
4.3.80.0010.0324.58
4.3.70.0030.0184.63
4.3.60.0020.0154.63
4.3.50.0050.0224.63
4.3.40.0050.0344.54
4.3.30.0010.0183.29
4.3.20.0020.0323.27
4.3.10.0010.0173.23
4.3.00.0130.02015.29

preferences:
47.09 ms | 401 KiB | 5 Q