3v4l.org

run code in 300+ PHP versions simultaneously
<?php class { private $x = null ?? 'foo'; }

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)
7.0.100.0230.07319.98
7.0.90.0170.08019.93
7.0.80.1870.06720.16
7.0.70.1030.05320.02
7.0.60.0800.04819.90
7.0.50.1170.07020.33
7.0.40.0980.05720.31
7.0.30.0710.05720.27
7.0.20.0660.05620.30
7.0.10.0580.06220.27
7.0.00.0720.05420.25
5.6.250.0100.07720.72
5.6.240.0170.07020.80
5.6.230.0130.05320.67
5.6.220.0780.05820.67
5.6.210.0600.04720.70
5.6.200.0660.05921.10
5.6.190.0720.06321.09
5.6.180.0520.05621.11
5.6.170.0570.05321.16
5.6.160.0490.05321.14
5.6.150.0580.04921.11
5.6.140.0520.06121.08
5.6.130.0570.05921.12
5.6.120.0310.06921.10
5.6.110.0460.06721.03
5.6.100.0400.06621.05
5.6.90.0460.06721.00
5.6.80.0430.06220.48
5.6.70.0570.05720.48
5.6.60.0420.05720.50
5.6.50.0520.05420.47
5.6.40.0540.05420.46
5.6.30.0490.05420.49
5.6.20.0530.05320.42
5.6.10.0720.05620.46
5.6.00.0560.05720.43
5.5.380.0200.07720.41
5.5.370.0070.08320.43
5.5.360.0480.05920.48
5.5.350.0460.05620.44
5.5.340.0740.06120.88
5.5.330.0680.06020.89
5.5.320.0400.06620.87
5.5.310.0480.06620.85
5.5.300.0470.06020.83
5.5.290.0520.06120.85
5.5.280.0180.06620.86
5.5.270.0420.06920.88
5.5.260.0410.06020.82
5.5.250.0470.07020.72
5.5.240.0410.06120.24
5.5.230.0560.05720.27
5.5.220.0500.04820.26
5.5.210.0430.05920.29
5.5.200.0780.05820.17
5.5.190.0600.05620.27
5.5.180.0520.06020.17
5.5.160.0590.04820.21
5.5.150.0540.05620.22
5.5.140.0560.05220.25
5.5.130.0460.06820.27
5.5.120.0560.04620.30
5.5.110.0560.06020.21
5.5.100.0560.06120.14
5.5.90.0670.06020.14
5.5.80.0560.05120.04
5.5.70.0480.05120.07
5.5.60.0570.04920.13
5.5.50.0500.05420.11
5.5.40.0680.05320.17
5.5.30.0390.05820.13
5.5.20.0630.05120.12
5.5.10.0640.05420.08
5.5.00.0480.04920.09
5.4.450.0470.05419.52
5.4.440.0140.06119.29
5.4.430.0440.05719.41
5.4.420.0480.04919.47
5.4.410.0560.05019.37
5.4.400.0420.05419.02
5.4.390.0720.05419.07
5.4.380.0700.05919.17
5.4.370.0500.05719.04
5.4.360.0520.05219.12
5.4.350.0480.05819.18
5.4.340.0530.05419.11
5.4.320.0680.05219.04
5.4.310.0720.05619.18
5.4.300.0520.05019.06
5.4.290.0570.05019.02
5.4.280.0730.05419.16
5.4.270.0480.05919.15
5.4.260.0560.05719.13
5.4.250.0630.06419.15
5.4.240.0580.05919.13
5.4.230.0530.05419.08
5.4.220.0560.05419.11
5.4.210.0540.04919.19
5.4.200.0600.05919.17
5.4.190.0470.05119.10
5.4.180.0510.05819.13
5.4.170.0500.05419.14
5.4.160.0580.04919.07
5.4.150.0580.06719.18
5.4.140.0560.05316.46
5.4.130.0620.04616.47
5.4.120.0600.06116.45
5.4.110.0690.05216.57
5.4.100.0540.04816.47
5.4.90.0470.05116.38
5.4.80.0510.04416.41
5.4.70.0520.05116.53
5.4.60.0640.04816.34
5.4.50.0600.04916.45
5.4.40.0520.05616.53
5.4.30.0580.05116.44
5.4.20.0570.04616.39
5.4.10.0530.05916.52
5.4.00.0610.04716.01
5.3.290.0490.05814.60
5.3.280.0740.05414.48
5.3.270.0600.04914.47
5.3.260.0530.05214.46
5.3.250.0590.04914.57
5.3.240.0500.05214.57
5.3.230.0570.05314.52
5.3.220.0590.05914.54
5.3.210.0600.04914.52
5.3.200.0570.04714.41
5.3.190.0530.04814.50
5.3.180.0620.04814.49
5.3.170.0580.05414.45
5.3.160.0680.05414.54
5.3.150.0640.05614.52
5.3.140.0540.05314.53
5.3.130.0730.04914.46
5.3.120.0840.05114.45
5.3.110.0470.05314.45
5.3.100.0660.05613.99
5.3.90.0660.05413.91
5.3.80.0730.05313.92
5.3.70.0620.05113.91
5.3.60.0470.04913.97
5.3.50.0460.05213.93
5.3.40.0470.05413.91
5.3.30.0540.05213.82
5.3.20.0410.05713.62
5.3.10.0570.04413.60
5.3.00.0620.05013.54
5.2.170.0630.04811.13
5.2.160.0470.03810.98
5.2.150.0420.03911.16
5.2.140.0360.04411.08
5.2.130.0380.04610.91
5.2.120.0370.03910.96
5.2.110.0330.04211.08
5.2.100.0390.03711.02
5.2.90.0360.04611.06
5.2.80.0470.03811.06
5.2.70.0430.03911.00
5.2.60.0420.04810.94
5.2.50.0420.04211.05
5.2.40.0390.03710.99
5.2.30.0370.03810.84
5.2.20.0330.04110.93
5.2.10.0330.03810.80
5.2.00.0330.04110.64
5.1.60.0370.03410.02
5.1.50.0370.0379.95
5.1.40.0380.0429.99
5.1.30.0340.04010.31
5.1.20.0400.03910.36
5.1.10.0340.03810.07
5.1.00.0360.03910.02
5.0.50.0240.0248.50
5.0.40.0130.0298.40
5.0.30.0170.0498.22
5.0.20.0230.0288.13
5.0.10.0310.0248.20
5.0.00.0170.0468.18
4.4.90.0140.0276.37
4.4.80.0260.0196.35
4.4.70.0160.0266.35
4.4.60.0190.0236.35
4.4.50.0180.0216.34
4.4.40.0190.0326.34
4.4.30.0160.0246.35
4.4.20.0180.0236.39
4.4.10.0170.0206.37
4.4.00.0180.0326.36
4.3.110.0190.0186.33
4.3.100.0160.0236.33
4.3.90.0160.0216.34
4.3.80.0120.0396.33
4.3.70.0180.0236.33
4.3.60.0160.0246.33
4.3.50.0190.0266.33
4.3.40.0190.0316.33
4.3.30.0070.0246.33
4.3.20.0090.0236.33
4.3.10.0090.0226.33
4.3.00.0110.0216.33

preferences:
144.46 ms | 1394 KiB | 7 Q