3v4l.org

run code in 300+ PHP versions simultaneously
<?php function returnnull() { return null; } $val = returnnull(); var_dump(isset($val));

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)
8.3.40.0140.00318.73
8.3.30.0070.01020.35
8.3.20.0000.00720.26
8.3.10.0040.00422.10
8.3.00.0040.00422.46
8.2.170.0070.01022.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.01726.16
8.2.120.0040.00419.64
8.2.110.0060.00322.20
8.2.100.0160.00017.73
8.2.90.0000.00719.05
8.2.80.0000.00719.33
8.2.70.0040.00417.50
8.2.60.0030.00517.93
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0040.00418.05
8.2.20.0040.00417.49
8.2.10.0030.00517.54
8.2.00.0070.00017.51
8.1.270.0070.00724.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.75
8.1.230.0000.01019.05
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0000.00817.51
8.1.180.0000.00719.93
8.1.170.0040.00418.23
8.1.160.0070.00022.02
8.1.150.0070.00018.60
8.1.140.0070.00017.29
8.1.130.0100.00017.71
8.1.120.0000.00717.37
8.1.110.0050.00317.32
8.1.100.0000.00717.34
8.1.90.0050.00317.37
8.1.80.0030.00417.40
8.1.70.0030.00317.26
8.1.60.0030.00517.61
8.1.50.0000.00817.39
8.1.40.0000.00717.36
8.1.30.0030.00617.68
8.1.20.0020.00217.51
8.1.10.0040.00417.43
8.1.00.0040.00417.38
8.0.300.0000.00718.77
8.0.290.0060.00316.93
8.0.280.0000.00818.38
8.0.270.0030.00317.18
8.0.260.0000.00716.74
8.0.250.0030.00316.78
8.0.240.0000.00716.81
8.0.230.0030.00316.92
8.0.220.0000.00716.71
8.0.210.0070.00016.85
8.0.200.0070.00016.95
8.0.190.0050.00216.77
8.0.180.0040.00316.86
8.0.170.0040.00416.79
8.0.160.0030.00416.87
8.0.150.0030.00416.71
8.0.140.0040.00416.69
8.0.130.0030.00313.16
8.0.120.0000.00816.77
8.0.110.0000.00716.80
8.0.100.0000.00716.71
8.0.90.0040.00416.87
8.0.80.0120.00416.86
8.0.70.0000.00816.80
8.0.60.0040.00416.92
8.0.50.0000.00716.75
8.0.30.0110.01116.87
8.0.20.0060.01317.40
8.0.10.0070.00016.73
8.0.00.0120.00816.71
7.4.330.0030.00315.00
7.4.320.0030.00316.44
7.4.300.0000.00616.50
7.4.290.0070.00016.59
7.4.280.0030.00316.63
7.4.270.0030.00516.54
7.4.260.0070.00016.47
7.4.250.0070.00016.36
7.4.240.0030.00416.50
7.4.230.0070.00016.50
7.4.220.0100.00716.54
7.4.210.0100.00616.56
7.4.200.0030.00316.47
7.4.190.0060.00016.41
7.4.160.0100.00716.56
7.4.150.0090.00917.40
7.4.140.0090.01617.86
7.4.130.0080.01116.48
7.4.120.0130.00416.54
7.4.110.0060.01016.45
7.4.100.0060.01016.44
7.4.90.0100.00816.27
7.4.80.0090.00919.39
7.4.70.0130.00616.39
7.4.60.0000.01716.51
7.4.50.0000.00716.26
7.4.40.0090.00622.77
7.4.30.0140.00316.29
7.4.00.0030.01215.01
7.3.330.0000.00513.24
7.3.320.0000.00613.22
7.3.310.0000.00716.27
7.3.300.0060.00016.35
7.3.290.0000.01416.26
7.3.280.0050.01016.25
7.3.270.0030.01317.40
7.3.260.0070.01016.67
7.3.250.0080.01016.33
7.3.240.0070.01016.25
7.3.230.0060.01216.39
7.3.210.0060.01416.26
7.3.200.0130.01019.39
7.3.190.0120.00616.56
7.3.180.0030.01316.40
7.3.170.0130.01016.45
7.3.160.0160.01016.31
7.3.120.0040.01215.00
7.2.330.0120.00616.55
7.2.320.0130.00816.63
7.2.310.0060.01016.29
7.2.300.0070.01016.63
7.2.290.0130.00316.63
7.2.60.0030.00716.84
7.2.00.0000.01119.06
7.1.200.0040.00415.71
7.1.100.0030.00918.04
7.1.70.0070.00017.21
7.1.60.0070.01419.43
7.1.50.0070.00716.48
7.1.00.0000.04022.30
7.0.200.0230.00714.80
7.0.140.0070.07322.01
7.0.70.3800.03719.87
7.0.60.0170.08319.88
7.0.50.0100.05317.84
7.0.40.0100.07720.27
7.0.30.0570.07020.19
7.0.20.0370.07320.09
7.0.10.0230.07020.15
7.0.00.0000.04320.14
5.6.280.0030.07321.07
5.6.210.0070.09020.75
5.6.200.0000.04318.15
5.6.190.0130.03320.41
5.6.180.0170.08020.53
5.6.170.0300.07720.45
5.6.160.0030.09320.54
5.6.150.0070.04718.17
5.6.140.0030.07318.18
5.6.130.0030.04318.16
5.6.120.0070.06021.11
5.6.110.0130.06020.97
5.6.100.0030.04320.98
5.6.90.0030.09021.08
5.6.80.0030.07720.41
5.6.70.0070.06020.32
5.5.350.0030.08320.46
5.5.340.0030.05017.98
5.5.330.0000.04720.27
5.5.320.0030.05020.28
5.5.310.0230.08320.56
5.5.300.0070.06318.04
5.5.290.0100.07018.04
5.5.280.0130.07320.76
5.5.270.0070.04020.67
5.5.260.0070.06020.84
5.5.250.0130.07320.46
5.5.240.0100.08020.04
5.4.450.0230.05019.36
5.4.440.0130.06319.47
5.4.430.0200.05719.34
5.4.420.0270.05019.47
5.4.410.0170.05719.57
5.4.400.0200.05719.13
5.4.390.0230.05018.98
5.4.380.0130.05318.59
5.4.370.0030.04718.44
5.4.360.0000.04318.55
5.4.350.0100.03812.02
5.4.340.0070.03512.02
5.4.320.0030.04212.50
5.4.310.0080.03512.50
5.4.300.0020.04012.50
5.4.290.0030.04012.50
5.4.280.0050.03612.39
5.4.270.0070.03512.40
5.4.260.0030.03812.39
5.4.250.0100.05318.94
5.4.240.0100.05318.77
5.4.230.0100.05318.95
5.4.220.0130.04718.65
5.4.210.0070.05318.98
5.4.200.0100.06718.84
5.4.190.0170.04719.00
5.4.180.0070.05018.89
5.4.170.0070.05018.98
5.4.160.0030.05718.80
5.4.150.0100.05718.88
5.4.140.0100.04716.32
5.4.130.0170.06016.38
5.4.120.0200.05716.29
5.4.110.0130.06316.38
5.4.100.0070.04716.52
5.4.90.0130.04016.65
5.4.80.0070.05316.55
5.4.70.0100.04316.46
5.4.60.0170.04316.44
5.4.50.0030.05716.45
5.4.40.0070.05316.55
5.4.30.0000.05316.59
5.4.20.0130.04716.48
5.4.10.0130.06316.35
5.4.00.0070.06015.75
5.3.290.0050.03912.80
5.3.280.0030.06014.66
5.3.270.0070.05314.66
5.3.260.0070.05014.59
5.3.250.0100.04714.57
5.3.240.0100.06714.77
5.3.230.0170.04714.56
5.3.220.0100.06714.64
5.3.210.0070.06314.65
5.3.200.0030.05314.56
5.3.190.0130.06014.58
5.3.180.0070.05014.75
5.3.170.0170.03714.69
5.3.160.0070.05014.46
5.3.150.0030.05714.57
5.3.140.0200.04714.46
5.3.130.0130.07014.62
5.3.120.0030.05314.46
5.3.110.0170.05314.76
5.3.100.0100.06014.02
5.3.90.0070.05014.10
5.3.80.0030.05714.18
5.3.70.0100.04314.10
5.3.60.0130.04713.89
5.3.50.0170.05714.04
5.3.40.0070.05013.91
5.3.30.0100.07013.98
5.3.20.0070.06013.59
5.3.10.0100.04713.48
5.3.00.0130.06713.63
5.2.170.0130.03711.16
5.2.160.0100.05011.23
5.2.150.0030.04311.13
5.2.140.0030.06311.36
5.2.130.0030.05011.32
5.2.120.0000.06711.00
5.2.110.0000.04711.27
5.2.100.0070.04311.16
5.2.90.0030.04011.08
5.2.80.0070.03710.91
5.2.70.0070.03711.07
5.2.60.0000.04711.13
5.2.50.0030.05711.10
5.2.40.0030.04311.21
5.2.30.0030.04310.95
5.2.20.0070.03711.02
5.2.10.0000.04310.69
5.2.00.0030.04310.79
5.1.60.0030.03310.09
5.1.50.0070.0409.91
5.1.40.0070.04710.03
5.1.30.0030.03710.31
5.1.20.0030.03710.56
5.1.10.0130.03010.26
5.1.00.0070.04010.16
5.0.50.0030.0278.59
5.0.40.0030.0278.50
5.0.30.0030.0438.25
5.0.20.0070.0338.43
5.0.10.0070.0278.25
5.0.00.0030.0408.25
4.4.90.0000.0338.25
4.4.80.0000.0238.25
4.4.70.0070.0178.25
4.4.60.0000.0238.25
4.4.50.0000.0238.25
4.4.40.0030.0338.25
4.4.30.0070.0178.25
4.4.20.0030.0238.25
4.4.10.0000.0238.25
4.4.00.0070.0408.25
4.3.110.0030.0208.25
4.3.100.0070.0208.25
4.3.90.0000.0308.25
4.3.80.0070.0308.25
4.3.70.0030.0278.25
4.3.60.0030.0208.25
4.3.50.0030.0208.25
4.3.40.0030.0308.25
4.3.30.0000.0278.25
4.3.20.0030.0278.25
4.3.10.0000.0278.25
4.3.00.0000.0307.26

preferences:
44.63 ms | 400 KiB | 5 Q