3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(?string $bar = null, $x) {}

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)
8.5.10.0110.00619.52
8.5.00.0150.00819.78
8.4.160.0140.01023.86
8.4.150.0010.00014.05
8.4.140.0090.01317.34
8.4.130.0040.00618.58
8.4.120.0140.00523.96
8.4.110.0040.00518.78
8.4.100.0120.00818.86
8.4.90.0120.00720.52
8.4.80.0100.01018.59
8.4.70.0100.00918.74
8.4.60.0140.00920.37
8.4.50.0130.00920.28
8.4.40.0040.00417.75
8.4.30.0120.00620.62
8.4.20.0070.01419.96
8.4.10.0130.00619.31
8.3.290.0120.00820.83
8.3.280.0100.00918.31
8.3.270.0200.00816.48
8.3.260.0100.00916.84
8.3.250.0100.00818.68
8.3.240.0090.00716.98
8.3.230.0080.01116.61
8.3.220.0120.00618.82
8.3.210.0110.00818.54
8.3.200.0020.00716.79
8.3.190.0040.00418.91
8.3.180.0110.00720.98
8.3.170.0070.01417.16
8.3.160.0130.00616.75
8.3.150.0080.00016.86
8.3.140.0080.00016.55
8.3.130.0040.00416.75
8.3.120.0060.00320.85
8.3.110.0330.00216.69
8.3.100.0310.00716.25
8.3.90.0380.00816.58
8.3.80.0390.00916.38
8.3.70.0390.00716.29
8.3.60.0370.01116.43
8.3.50.0300.01516.31
8.3.40.0330.01017.25
8.3.30.0290.00717.25
8.3.20.0280.00917.19
8.3.10.0250.01217.31
8.3.00.0290.00817.25
8.2.300.0130.00723.71
8.2.290.0120.00720.14
8.2.280.0070.00520.21
8.2.270.0110.00716.80
8.2.260.0110.00417.02
8.2.250.0000.01116.50
8.2.240.0000.00917.11
8.2.230.0270.01316.26
8.2.220.0310.00516.31
8.2.210.0180.01016.35
8.2.200.0200.00616.38
8.2.190.0200.00816.30
8.2.180.0230.00716.41
8.2.170.0350.01417.56
8.2.160.0310.00717.19
8.2.150.0280.00817.31
8.2.140.0350.00617.37
8.2.130.0360.01117.19
8.2.120.0360.01117.31
8.2.110.0350.00917.31
8.2.100.0370.00617.30
8.2.90.0360.00717.50
8.2.80.0310.00917.19
8.2.70.0330.00717.17
8.2.60.0340.00816.94
8.2.50.0360.00717.25
8.2.40.0280.01017.25
8.2.30.0290.01617.12
8.2.20.0320.00917.29
8.2.10.0330.00817.12
8.2.00.0300.00517.31
8.1.340.0100.01017.65
8.1.330.0090.01021.93
8.1.320.0100.00816.50
8.1.310.0040.00416.77
8.1.300.0030.00616.20
8.1.290.0370.00915.75
8.1.280.0340.00716.00
8.1.270.0350.00817.11
8.1.260.0330.00917.00
8.1.250.0390.00717.12
8.1.240.0320.00317.12
8.1.230.0270.00816.88
8.1.220.0240.01117.06
8.1.210.0300.00816.81
8.1.200.0310.00817.10
8.1.190.0350.00516.87
8.1.180.0300.00717.10
8.1.170.0260.01117.00
8.1.160.0220.00717.11
8.1.150.0200.00817.05
8.1.140.0190.01116.94
8.1.130.0300.00517.06
8.1.120.0380.00116.98
8.1.110.0320.00717.00
8.1.100.0330.00816.94
8.1.90.0310.00917.11
8.1.80.0270.01017.11
8.1.70.0350.00316.99
8.1.60.0310.01116.99
8.1.50.0290.01417.11
8.1.40.0350.00317.19
8.1.30.0340.00517.19
8.1.20.0380.00317.41
8.1.10.0310.00817.13
8.1.00.0310.00917.03

preferences:
60.98 ms | 403 KiB | 5 Q