3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { private int $x; } print serialize(new C());

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)
8.4.20.0110.00719.72
8.4.10.0080.00021.93
8.3.150.0070.01117.09
8.3.140.0000.00816.56
8.3.130.0040.00416.46
8.3.120.0060.00320.60
8.3.110.0030.00620.94
8.3.100.0040.00416.66
8.3.90.0030.00526.77
8.3.80.0090.00018.43
8.3.70.0090.01216.58
8.3.60.0130.00718.18
8.3.50.0110.00416.32
8.3.40.0070.00720.47
8.3.30.0070.00720.34
8.3.20.0070.00024.18
8.3.10.0080.00024.66
8.3.00.0040.00426.16
8.2.260.0050.00316.57
8.2.250.0080.00018.52
8.2.240.0150.00417.05
8.2.230.0090.00022.58
8.2.220.0090.00024.06
8.2.210.0140.00026.77
8.2.200.0060.00316.63
8.2.190.0100.01018.29
8.2.180.0120.00925.92
8.2.170.0110.00418.82
8.2.160.0100.00322.96
8.2.150.0050.00325.66
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0040.00421.62
8.2.110.0060.00322.13
8.2.100.0080.00417.77
8.2.90.0090.00017.72
8.2.80.0050.00319.07
8.2.70.0110.00879.33
8.2.60.0130.00579.33
8.2.50.0150.00479.33
8.2.40.0130.00479.33
8.2.30.0130.00579.33
8.2.20.0120.00579.33
8.2.10.0130.00579.33
8.2.00.0130.00379.33
8.1.310.0100.00716.80
8.1.300.0040.00418.28
8.1.290.0170.00721.41
8.1.280.0100.00725.92
8.1.270.0120.00624.66
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.14
8.1.230.0070.00320.97
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0150.00279.33
8.1.190.0140.00279.33
8.1.180.0080.00979.33
8.1.170.0120.00679.33
8.1.160.0110.00579.33
8.1.150.0130.00479.33
8.1.140.0120.00579.33
8.1.130.0090.00879.33
8.1.120.0130.00379.33
8.1.110.0150.00279.33
8.1.100.0120.00579.33
8.1.90.0150.00379.33
8.1.80.0120.00679.33
8.1.70.0100.00779.33
8.1.60.0140.00579.33
8.1.50.0130.00779.33
8.1.40.0170.00179.33
8.1.30.0070.01079.33
8.1.20.0100.00779.33
8.1.10.0110.00779.33
8.1.00.0140.00579.33
8.0.300.0040.00420.18
8.0.290.0130.00579.33
8.0.280.0110.00679.33
8.0.270.0120.00679.33
8.0.260.0090.00879.33
8.0.250.0130.00479.33
8.0.240.0160.00279.33
8.0.230.0140.00479.33
8.0.220.0120.00579.33
8.0.210.0170.00079.33
8.0.200.0150.00279.33
8.0.190.0130.00379.33
8.0.180.0110.00579.33
8.0.170.0130.00479.33
8.0.160.0140.00379.33
8.0.150.0090.00879.33
8.0.140.0120.00579.33
8.0.130.0130.00379.33
8.0.120.0170.00079.33
8.0.110.0150.00379.33
8.0.100.0150.00379.33
8.0.90.0090.00779.33
8.0.80.0110.00679.33
8.0.70.0160.00379.33
8.0.60.0150.00379.33
8.0.50.0080.00879.33
8.0.30.0080.00879.33
8.0.20.0170.00079.33
8.0.10.0060.01079.33
8.0.00.0110.00479.33
7.4.330.0110.00379.33
7.4.320.0080.00879.33
7.4.300.0120.00679.33
7.4.290.0050.01079.33
7.4.280.0120.00479.33
7.4.270.0070.01079.33
7.4.260.0090.00679.33
7.4.250.0180.00079.33
7.4.240.0030.01479.33
7.4.230.0170.00079.33
7.4.220.0130.00379.33
7.4.210.0120.00379.33
7.4.200.0090.00679.33
7.4.190.0160.00079.33
7.4.180.0150.00079.33
7.4.160.0100.00579.33
7.4.150.0100.00579.33
7.4.140.0100.00579.33
7.4.130.0080.00879.33
7.4.120.0000.01579.33
7.4.110.0160.00079.33
7.4.100.0150.00079.33
7.4.90.0120.00679.33
7.4.80.0160.00079.33
7.4.70.0100.00579.33
7.4.60.0100.00579.33
7.4.50.0120.00379.33
7.4.40.0130.00379.33
7.4.30.0120.00479.33
7.4.20.0120.00379.33
7.4.10.0090.00679.33
7.4.00.0150.00079.33
7.3.330.0110.00479.33
7.3.320.0150.00079.33
7.3.310.0100.00579.33
7.3.300.0150.00079.33
7.3.290.0110.00479.33
7.3.280.0090.00679.33
7.3.270.0090.00479.33
7.3.260.0030.01379.33
7.3.250.0070.00779.33
7.3.240.0080.00879.33
7.3.230.0120.00679.33
7.3.220.0120.00479.33
7.3.210.0160.00079.33
7.3.200.0050.01079.33
7.3.190.0140.00279.33
7.3.180.0150.00079.33
7.3.170.0090.00679.33
7.3.160.0160.00079.33
7.3.150.0120.00379.33
7.3.140.0160.00079.33
7.3.130.0170.00079.33
7.3.120.0150.00079.33
7.3.110.0130.00379.33
7.3.100.0070.00779.33
7.3.90.0140.00279.33
7.3.80.0130.00379.33
7.3.70.0120.00379.33
7.3.60.0150.00079.33
7.3.50.0120.00379.33
7.3.40.0130.00379.33
7.3.30.0100.00579.33
7.3.20.0150.00079.33
7.3.10.0130.00479.33
7.3.00.0090.00679.33
7.2.340.0050.01079.33
7.2.330.0080.00879.33
7.2.320.0050.01079.33
7.2.310.0100.00579.33
7.2.300.0110.00479.33
7.2.290.0070.00779.33
7.2.280.0080.00879.33
7.2.270.0120.00479.33
7.2.260.0120.00479.33
7.2.250.0150.00079.33
7.2.240.0170.00479.33
7.2.230.0110.00479.33
7.2.220.0040.01179.33
7.2.210.0110.00479.33
7.2.200.0110.00579.33
7.2.190.0100.00579.33
7.2.180.0120.00479.33
7.2.170.0150.00079.33
7.2.160.0070.00779.33
7.2.150.0160.00079.33
7.2.140.0120.00479.33
7.2.130.0120.00679.33
7.2.120.0180.00079.33
7.2.110.0160.00079.33
7.2.100.0110.00779.33
7.2.90.0140.00479.33
7.2.80.0110.00679.33
7.2.70.0130.00479.33
7.2.60.0130.00379.33
7.2.50.0110.00579.33
7.2.40.0110.00579.33
7.2.30.0100.00579.33
7.2.20.0150.00079.33
7.2.10.0120.00879.33
7.2.00.0100.00579.33
7.1.330.0100.00579.33
7.1.320.0150.00079.33
7.1.310.0100.00479.33
7.1.300.0030.01079.33
7.1.290.0160.00079.33
7.1.280.0110.00479.33
7.1.270.0060.00979.33
7.1.260.0110.00479.33
7.1.250.0120.00379.33
7.1.240.0110.00479.33
7.1.230.0070.00779.33
7.1.220.0170.00079.33
7.1.210.0110.00679.33
7.1.200.0060.00979.33
7.1.190.0130.00379.33
7.1.180.0110.00479.33
7.1.170.0050.01079.33
7.1.160.0080.00879.33
7.1.150.0110.00479.33
7.1.140.0090.00679.33
7.1.130.0650.00379.33
7.1.120.0120.00279.33
7.1.110.0040.01279.33
7.1.100.0150.00079.33
7.1.90.0110.00479.33
7.1.80.0120.00479.33
7.1.70.0100.00579.33
7.1.60.0130.00679.33
7.1.50.0120.00379.33
7.1.40.0090.00679.33
7.1.30.0140.00079.33
7.1.20.0090.00679.33
7.1.10.0130.00379.33
7.1.00.0130.00279.33
7.0.330.0120.00279.33
7.0.320.0140.00079.33
7.0.310.0110.00379.33
7.0.300.0140.00079.33
7.0.290.0140.00279.33
7.0.280.0050.01079.33
7.0.270.0100.00379.33
7.0.260.0120.00279.33
7.0.250.0270.00579.33
7.0.240.0100.00379.33
7.0.230.0150.00079.33
7.0.220.0040.00979.33
7.0.210.0140.00379.33
7.0.200.0160.00079.33
7.0.190.0110.00479.33
7.0.180.0080.00879.33
7.0.170.0080.00879.33
7.0.160.0090.00679.33
7.0.150.0100.00579.33
7.0.140.0120.00379.33
7.0.130.0090.00579.33
7.0.120.0070.00779.33
7.0.110.0140.00079.33
7.0.100.0140.00079.33
7.0.90.0090.00579.33
7.0.80.0100.00579.33
7.0.70.0150.00079.33
7.0.60.0060.00979.33
7.0.50.0100.00379.33
7.0.40.0130.00079.33
7.0.30.0220.00679.33
7.0.20.0090.00479.33
7.0.10.0110.00379.33
7.0.00.0150.00079.33
5.6.400.0140.00379.33
5.6.390.0070.00779.33
5.6.380.0050.01079.33
5.6.370.0040.00979.33
5.6.360.0090.00579.33
5.6.350.0060.01279.33
5.6.340.0000.01479.33
5.6.330.0070.00779.33
5.6.320.0140.00079.33
5.6.310.0140.00079.33
5.6.300.0100.00379.33
5.6.290.0070.00779.33
5.6.280.0090.00479.33
5.6.270.0130.00079.33
5.6.260.0070.00779.33
5.6.250.0070.00779.33
5.6.240.0110.00379.33
5.6.230.0100.00379.33
5.6.220.0060.00679.33
5.6.210.0110.00579.33
5.6.200.0070.00779.33
5.6.190.0070.00779.33
5.6.180.0090.00479.33
5.6.170.0090.00579.33
5.6.160.0140.00079.33
5.6.150.0050.00879.33
5.6.140.0120.00279.33
5.6.130.0130.00079.33
5.6.120.0060.00679.33
5.6.110.0090.00479.33
5.6.100.0140.00079.33
5.6.90.0080.00579.33
5.6.80.0120.00079.33
5.6.70.0030.01079.33
5.6.60.0120.00079.33
5.6.50.0090.00479.33
5.6.40.0130.00079.33
5.6.30.0040.00879.33
5.6.20.0130.00079.33
5.6.10.0070.00779.33
5.6.00.0100.00379.33
5.5.380.0090.00479.33
5.5.370.0090.00579.33
5.5.360.0090.00579.33
5.5.350.0100.00579.33
5.5.340.0110.00479.33
5.5.330.0140.00079.33
5.5.320.0090.00479.33
5.5.310.0150.00279.33
5.5.300.0130.00079.33
5.5.290.0040.00979.33
5.5.280.0080.00479.33
5.5.270.0040.00879.33
5.5.260.0110.00279.33
5.5.250.0130.00079.33
5.5.240.0100.00379.33
5.5.230.0080.00479.33
5.5.220.0000.01379.33
5.5.210.0130.00079.33
5.5.200.0130.00079.33
5.5.190.0120.00079.33
5.5.180.0000.01279.33
5.5.170.0090.00379.33
5.5.160.0100.00579.33
5.5.150.0050.00979.33
5.5.140.0100.00379.33
5.5.130.0070.00779.33
5.5.120.0070.00779.33
5.5.110.0090.00579.33
5.5.100.0130.00079.33
5.5.90.0080.00479.33
5.5.80.0120.00079.33
5.5.70.0100.00379.33
5.5.60.0130.00079.33
5.5.50.0040.00979.33
5.5.40.0040.00879.33
5.5.30.0100.00379.33
5.5.20.0080.00479.33
5.5.10.0130.00079.33
5.5.00.0090.00579.33
5.4.450.0080.00379.33
5.4.440.0080.00379.33
5.4.430.0050.00579.33
5.4.420.0030.00779.33
5.4.410.0110.00079.33
5.4.400.0070.00379.33
5.4.390.0100.00079.33
5.4.380.0080.00379.33
5.4.370.0030.00779.33
5.4.360.0110.00079.33
5.4.350.0000.01179.33
5.4.340.0070.00379.33
5.4.330.0070.00379.33
5.4.320.0110.00079.33
5.4.310.0110.00079.33
5.4.300.0100.00079.33
5.4.290.0100.00079.33
5.4.280.0080.00279.33
5.4.270.0080.00379.33
5.4.260.0110.00079.33
5.4.250.0100.00079.33
5.4.240.0000.01079.33
5.4.230.0090.00279.33
5.4.220.0050.00579.33
5.4.210.0080.00379.33
5.4.200.0030.00779.33
5.4.190.0000.01179.33
5.4.180.0110.00079.33
5.4.170.0030.00879.33
5.4.160.0100.00079.33
5.4.150.0030.00779.33
5.4.140.0100.00079.33
5.4.130.0030.00779.33
5.4.120.0090.00479.33
5.4.110.0110.00079.33
5.4.100.0030.00979.33
5.4.90.0110.00079.33
5.4.80.0000.01079.33
5.4.70.0050.00579.33
5.4.60.0100.00079.33
5.4.50.0070.00379.33
5.4.40.0050.00579.33
5.4.30.0060.00379.33
5.4.20.0070.00379.33
5.4.10.0100.00079.33
5.4.00.0100.00079.33
5.3.290.0030.00779.33
5.3.280.0100.00079.33
5.3.270.0060.00679.33
5.3.260.0110.00079.33
5.3.250.0100.00079.33
5.3.240.0070.00379.33
5.3.230.0070.00379.33
5.3.220.0030.00779.33
5.3.210.0080.00479.33
5.3.200.0100.00079.33
5.3.190.0080.00379.33
5.3.180.0070.00479.33
5.3.170.0040.00779.33
5.3.160.0070.00279.33
5.3.150.0110.00079.33
5.3.140.0000.01179.33
5.3.130.0110.00079.33
5.3.120.0100.00079.33
5.3.110.0030.01079.33
5.3.100.0070.00579.33
5.3.90.0060.00679.33
5.3.80.0100.00079.33
5.3.70.0100.00079.33
5.3.60.0060.00379.33
5.3.50.0050.00579.33
5.3.40.0070.00379.33
5.3.30.0080.00379.33
5.3.20.0050.00579.33
5.3.10.0050.00579.33
5.3.00.0060.00379.33
5.2.170.0060.00379.33
5.2.160.0030.00679.33
5.2.150.0080.00079.33
5.2.140.0050.00379.33
5.2.130.0040.00479.33
5.2.120.0090.00079.33
5.2.110.0080.00079.33
5.2.100.0080.00379.33
5.2.90.0050.00379.33
5.2.80.0060.00379.33
5.2.70.0090.00079.33
5.2.60.0000.00879.33
5.2.50.0090.00079.33
5.2.40.0030.00679.33
5.2.30.0000.00879.33
5.2.20.0090.00079.33
5.2.10.0060.00279.33
5.2.00.0080.00079.33
5.1.60.0070.00079.33
5.1.50.0080.00379.33
5.1.40.0040.00479.33
5.1.30.0070.00079.33
5.1.20.0080.00079.33
5.1.10.0040.00479.33
5.1.00.0000.00779.33
5.0.50.0000.00679.33
5.0.40.0000.00779.33
5.0.30.0000.00679.33
5.0.20.0000.00779.33
5.0.10.0040.00279.33
5.0.00.0060.00079.33
4.4.90.0000.00379.33
4.4.80.0000.00479.33
4.4.70.0000.00379.33
4.4.60.0000.00379.33
4.4.50.0040.00079.33
4.4.40.0040.00079.33
4.4.30.0000.00379.33
4.4.20.0020.00279.33
4.4.10.0000.00379.33
4.4.00.0020.00179.33
4.3.110.0000.00379.33
4.3.100.0000.00379.33
4.3.90.0040.00079.33
4.3.80.0000.00479.33
4.3.70.0020.00279.33
4.3.60.0040.00079.33
4.3.50.0000.00479.33
4.3.40.0030.00079.33
4.3.30.0000.00379.33
4.3.20.0030.00079.33
4.3.10.0000.00279.33
4.3.00.0030.00079.33

preferences:
28.96 ms | 403 KiB | 5 Q