3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C {} if (class_exists('C')) { return; } class 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)
8.5.00.0130.00819.95
8.4.150.0020.00114.05
8.4.140.0130.00917.40
8.4.130.0050.00517.63
8.4.120.0110.00920.86
8.4.110.0100.00922.34
8.4.100.0110.00618.55
8.4.90.0110.00520.58
8.4.80.0070.00118.57
8.4.70.0040.00417.89
8.4.60.0070.00418.97
8.4.50.0060.00320.09
8.4.40.0080.01117.67
8.4.30.0120.00620.72
8.4.20.0160.00319.63
8.4.10.0030.00619.24
8.3.280.0100.01018.25
8.3.270.0140.00616.44
8.3.260.0120.00416.46
8.3.250.0100.00818.54
8.3.240.0050.00317.20
8.3.230.0140.00516.52
8.3.220.0100.00918.72
8.3.210.0090.00916.73
8.3.200.0060.00316.65
8.3.190.0080.00917.25
8.3.180.0120.00716.68
8.3.170.0100.00320.53
8.3.160.0150.00316.92
8.3.150.0040.01416.88
8.3.140.0080.00018.79
8.3.130.0070.00316.36
8.3.120.0040.00418.91
8.3.110.0060.00320.94
8.3.100.0050.00524.06
8.3.90.0040.00426.77
8.3.80.0100.00018.05
8.3.70.0140.00718.30
8.3.60.0070.00716.66
8.3.50.0070.01116.34
8.3.40.0060.01321.91
8.3.30.0110.00720.17
8.3.20.0030.01723.65
8.3.10.0100.01023.59
8.3.00.0200.00020.59
8.2.290.0120.00720.25
8.2.280.0150.00518.26
8.2.270.0060.00918.70
8.2.260.0120.00618.49
8.2.250.0080.00018.09
8.2.240.0090.00018.66
8.2.230.0030.00622.58
8.2.220.0030.00637.54
8.2.210.0100.00726.77
8.2.200.0030.00716.75
8.2.190.0100.01016.58
8.2.180.0130.01016.38
8.2.170.0040.01118.72
8.2.160.0080.00622.96
8.2.150.0170.00320.80
8.2.140.0160.00322.09
8.2.130.0120.00622.13
8.2.120.0100.01020.75
8.2.110.0060.01320.83
8.2.100.0140.00720.62
8.2.90.0150.00020.43
8.2.80.0130.00721.00
8.2.70.0100.00620.09
8.2.60.0040.01220.45
8.2.50.0140.00720.75
8.2.40.0070.01420.20
8.2.30.0100.01020.15
8.2.20.0110.00420.29
8.2.10.0130.00320.29
8.2.00.0110.00720.28
8.1.330.0130.00621.59
8.1.320.0080.01015.89
8.1.310.0140.00318.29
8.1.300.0060.00917.68
8.1.290.0060.00330.84
8.1.280.0120.00325.92
8.1.270.0130.00323.96
8.1.260.0090.00923.83
8.1.250.0070.00723.96
8.1.240.0100.00720.18
8.1.230.0130.00620.16
8.1.220.0110.00722.09
8.1.210.0090.00920.21
8.1.200.0130.00320.46
8.1.190.0080.00820.34
8.1.180.0190.00319.97
8.1.170.0090.00920.39
8.1.160.0080.00820.02
8.1.150.0200.00020.24
8.1.140.0170.00320.22
8.1.130.0000.01420.35
8.1.120.0070.00720.20
8.1.110.0070.00720.15
8.1.100.0090.00920.21
8.1.90.0080.00820.22
8.1.80.0120.00321.35
8.1.70.0110.00720.34
8.1.60.0070.00720.26
8.1.50.0110.00420.29
8.1.40.0140.00020.36
8.1.30.0120.00620.58
8.1.20.0140.00722.10
8.1.10.0110.00320.27
8.1.00.0110.00320.21
4.3.110.0040.00214.13

preferences:
87.45 ms | 403 KiB | 5 Q