3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = null; if (!isset($bla)) { // notice echo 'is 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)
8.3.40.0070.00718.70
8.3.30.0090.00618.82
8.3.20.0070.00020.22
8.3.10.0070.00021.81
8.3.00.0040.00419.36
8.2.170.0070.01022.96
8.2.160.0000.01520.35
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0000.00722.13
8.2.110.0030.00619.30
8.2.100.0000.01317.84
8.2.90.0050.00319.22
8.2.80.0080.00017.97
8.2.70.0110.00417.25
8.2.60.0000.00917.93
8.2.50.0040.00418.10
8.2.40.0000.00819.88
8.2.30.0080.00018.13
8.2.20.0040.00417.70
8.2.10.0040.00417.96
8.2.00.0000.00717.62
8.1.270.0000.00723.70
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0030.00622.86
8.1.230.0080.00417.82
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0000.00917.23
8.1.180.0040.00418.10
8.1.170.0030.00618.57
8.1.160.0070.00022.00
8.1.150.0040.00418.50
8.1.140.0040.00417.44
8.1.130.0030.00317.78
8.1.120.0080.00017.48
8.1.110.0040.00417.45
8.1.100.0030.00317.43
8.1.90.0000.00817.43
8.1.80.0030.00517.45
8.1.70.0030.00317.38
8.1.60.0000.01117.47
8.1.50.0030.00517.55
8.1.40.0040.00417.48
8.1.30.0000.00817.50
8.1.20.0040.00417.57
8.1.10.0050.00317.46
8.1.00.0030.00517.45
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.37
8.0.270.0030.00317.24
8.0.260.0030.00317.25
8.0.250.0000.00616.96
8.0.240.0030.00316.90
8.0.230.0030.00316.92
8.0.220.0070.00016.87
8.0.210.0040.00416.81
8.0.200.0030.00316.95
8.0.190.0060.00316.93
8.0.180.0040.00416.83
8.0.170.0000.00716.93
8.0.160.0070.00016.75
8.0.150.0040.00416.72
8.0.140.0050.00216.84
8.0.130.0000.00613.32
8.0.120.0000.00816.77
8.0.110.0020.00516.81
8.0.100.0030.00516.84
8.0.90.0040.00416.71
8.0.80.0060.00916.82
8.0.70.0040.00416.71
8.0.60.0000.00816.75
8.0.50.0030.00516.85
8.0.30.0130.00617.06
8.0.20.0100.00917.40
8.0.10.0050.00216.86
8.0.00.0060.01116.71
7.4.330.0000.00515.00
7.4.320.0000.00716.43
7.4.300.0000.00616.46
7.4.290.0000.00616.48
7.4.280.0000.00716.41
7.4.270.0040.00416.59
7.4.260.0040.00416.59
7.4.250.0030.00616.48
7.4.240.0030.00416.47
7.4.230.0070.00016.59
7.4.220.0070.01016.41
7.4.210.0120.00416.47
7.4.200.0050.00216.31
7.4.190.0030.00316.33
7.4.160.0120.00916.35
7.4.150.0030.01417.40
7.4.140.0080.01017.86
7.4.130.0100.00716.57
7.4.120.0100.00816.39
7.4.110.0040.01916.30
7.4.100.0100.00716.51
7.4.90.0100.00716.47
7.4.80.0120.00619.39
7.4.70.0080.01316.25
7.4.60.0130.00316.46
7.4.50.0000.00816.35
7.4.40.0030.01316.42
7.4.30.0110.00816.13
7.4.00.0030.01214.79
7.3.330.0000.00513.05
7.3.320.0020.00212.95
7.3.310.0000.00716.19
7.3.300.0070.00016.02
7.3.290.0070.00716.17
7.3.280.0080.00716.17
7.3.270.0090.00917.40
7.3.260.0040.01816.28
7.3.250.0080.01216.24
7.3.240.0060.01016.05
7.3.230.0180.00016.39
7.3.210.0070.01016.22
7.3.200.0110.00719.39
7.3.190.0090.00916.24
7.3.180.0090.01316.30
7.3.170.0060.00916.27
7.3.160.0090.00616.40
7.3.120.0030.01014.97
7.2.330.0160.00916.55
7.2.320.0110.01016.21
7.2.310.0120.00916.54
7.2.300.0100.00716.48
7.2.290.0110.00516.61
7.2.00.0000.01519.21
7.1.100.0110.00018.12
7.1.70.0030.00617.05
7.1.60.0080.00419.46
7.1.50.0110.02534.85
7.1.00.0030.07722.36
7.0.200.0030.00616.39
7.0.140.0000.07722.00
7.0.60.0030.08319.92
7.0.50.0030.05717.84
7.0.40.0030.04720.09
7.0.30.0330.07320.09
7.0.20.0200.04720.16
7.0.10.0100.07320.27
7.0.00.0030.04320.10
5.6.280.0070.07021.02
5.6.210.0130.07720.46
5.6.200.0100.04018.08
5.6.190.0100.06020.57
5.6.180.0300.07320.56
5.6.170.0270.04020.37
5.6.160.0100.04320.70
5.6.150.0070.04018.16
5.6.140.0070.05718.21
5.6.130.0070.03718.17
5.6.120.0100.04721.14
5.6.110.0000.07720.97
5.6.100.0100.06721.08
5.6.90.0070.08020.99
5.6.80.0070.04720.40
5.5.350.4300.03320.34
5.5.340.0070.08317.88
5.5.330.0100.07320.37
5.5.320.0270.04720.17
5.5.310.0300.07720.14
5.5.300.0070.04317.93
5.5.290.0100.04317.90
5.5.280.0070.04720.76
5.5.270.0030.06020.86
5.5.260.0100.07720.71
5.5.250.0070.03720.70
5.5.240.0070.06020.03
5.4.450.0670.06319.28
5.4.440.0570.07719.43
5.4.430.0770.05019.48
5.4.420.0630.05319.63
5.4.410.0570.05719.31
5.4.400.0600.07019.20
5.4.390.0600.06019.08
5.4.380.0170.05018.50
5.4.370.0170.05018.72
5.4.360.0130.05318.50
5.4.350.0130.05318.64
5.4.340.0170.05018.50
5.4.320.0040.03812.45
5.4.310.0080.04512.45
5.4.300.0090.03612.45
5.4.290.0110.05112.45
5.4.280.0130.04612.34
5.4.270.0150.04212.34
5.4.260.0070.04812.34
5.4.250.0080.03912.34
5.4.240.0070.03712.35
5.4.230.0070.03612.34
5.4.220.0060.04212.34
5.4.210.0050.03712.34
5.4.200.0060.04212.34
5.4.190.0090.03612.33
5.4.180.0070.05312.34
5.4.170.0120.03912.34
5.4.160.0060.04012.34
5.4.150.0070.03512.34
5.4.140.0060.03712.02
5.4.130.0060.04812.01
5.4.120.0090.04811.97
5.4.110.0080.04911.96
5.4.100.0080.05011.96
5.4.90.0100.04911.96
5.4.80.0100.04911.96
5.4.70.0100.04611.96
5.4.60.0070.04811.96
5.4.50.0070.05011.96
5.4.40.0110.04511.95
5.4.30.0060.05111.95
5.4.20.0090.04511.94
5.4.10.0080.03711.95
5.4.00.0090.04611.44
5.3.290.0050.04012.80
5.3.280.0110.04612.71
5.3.270.0090.05412.72
5.3.260.0070.04912.72
5.3.250.0070.03912.72
5.3.240.0080.04212.72
5.3.230.0040.04212.71
5.3.220.0050.03912.68
5.3.210.0090.05012.68
5.3.200.0110.04912.68
5.3.190.0060.05312.67
5.3.180.0100.04312.68
5.3.170.0050.03712.66
5.3.160.0040.03812.68
5.3.150.0070.03712.67
5.3.140.0090.03512.66
5.3.130.0050.03912.66
5.3.120.0100.04612.66
5.3.110.0050.04312.66
5.3.100.0090.03712.11
5.3.90.0080.03712.08
5.3.80.0090.03512.07
5.3.70.0080.03512.08
5.3.60.0140.03812.06
5.3.50.0060.04412.00
5.3.40.0070.05212.00
5.3.30.0060.04811.94
5.3.20.0040.03611.72
5.3.10.0050.03511.69
5.3.00.0080.03411.67
5.2.170.0040.0349.17
5.2.160.0040.0319.18
5.2.150.0050.0309.18
5.2.140.0030.0339.17
5.2.130.0050.0309.13
5.2.120.0050.0299.13
5.2.110.0080.0269.14
5.2.100.0040.0299.13
5.2.90.0050.0319.13
5.2.80.0060.0339.13
5.2.70.0080.0309.13
5.2.60.0050.0409.09
5.2.50.0100.0469.05
5.2.40.0080.0589.03
5.2.30.0080.0569.00
5.2.20.0090.0379.00
5.2.10.0100.0448.91
5.2.00.0070.0568.77
5.1.60.0040.0298.06
5.1.50.0060.0278.05
5.1.40.0080.0408.04
5.1.30.0100.0428.39
5.1.20.0050.0268.40
5.1.10.0000.0318.13
5.1.00.0010.0308.13
5.0.50.0050.0546.61
5.0.40.0050.0286.47
5.0.30.0050.0356.28
5.0.20.0040.0196.25
5.0.10.0040.0196.23
5.0.00.0030.0356.23
4.4.90.0020.0244.78
4.4.80.0030.0154.75
4.4.70.0020.0184.75
4.4.60.0030.0154.75
4.4.50.0030.0244.77
4.4.40.0040.0304.71
4.4.30.0030.0164.76
4.4.20.0050.0174.84
4.4.10.0030.0244.85
4.4.00.0070.0544.76
4.3.110.0050.0214.66
4.3.100.0030.0224.67
4.3.90.0040.0234.63
4.3.80.0040.0264.58
4.3.70.0000.0254.63
4.3.60.0030.0224.63
4.3.50.0040.0214.63
4.3.40.0040.0344.53
4.3.30.0030.0233.28
4.3.20.0020.0223.26
4.3.10.0010.0233.21
4.3.00.0070.0309.41

preferences:
58.73 ms | 400 KiB | 5 Q