3v4l.org

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

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)
8.3.60.0100.00718.18
8.3.50.0150.00517.51
8.3.40.0090.00618.54
8.3.30.0090.00618.68
8.3.20.0070.00021.90
8.3.10.0040.00421.89
8.3.00.0000.00723.71
8.2.180.0030.01316.32
8.2.170.0150.00018.67
8.2.160.0130.00722.96
8.2.150.0030.00524.18
8.2.140.0060.00324.66
8.2.130.0020.00526.16
8.2.120.0080.00021.07
8.2.110.0030.00619.23
8.2.100.0080.00417.60
8.2.90.0000.00817.50
8.2.80.0060.00317.97
8.2.70.0040.00417.80
8.2.60.0070.00517.29
8.2.50.0030.00617.50
8.2.40.0080.00017.68
8.2.30.0040.00419.00
8.2.20.0070.00017.88
8.2.10.0040.00420.52
8.2.00.0040.00419.14
8.1.280.0040.01125.92
8.1.270.0000.00822.42
8.1.260.0090.00926.35
8.1.250.0040.00428.09
8.1.240.0000.00921.00
8.1.230.0060.00617.70
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00617.10
8.1.190.0050.00517.00
8.1.180.0040.00418.10
8.1.170.0000.00717.62
8.1.160.0070.00418.43
8.1.150.0040.00418.75
8.1.140.0060.00418.35
8.1.130.0090.00217.34
8.1.120.0060.00417.32
8.1.110.0050.00717.31
8.1.100.0070.00317.30
8.1.90.0050.00517.29
8.1.80.0080.00517.28
8.1.70.0090.00417.31
8.1.60.0100.00417.53
8.1.50.0070.00617.86
8.1.40.0080.00617.90
8.1.30.0110.00317.95
8.1.20.0070.00617.99
8.1.10.0070.00717.37
8.1.00.0050.00817.23
8.0.300.0040.00418.77
8.0.290.0060.00316.58
8.0.280.0070.00018.27
8.0.270.0030.00316.69
8.0.260.0040.00416.80
8.0.250.0090.00216.80
8.0.240.0070.00416.86
8.0.230.0070.00516.78
8.0.220.0040.00716.77
8.0.210.0050.00716.76
8.0.200.0080.00516.77
8.0.190.0090.00416.78
8.0.180.0080.00516.75
8.0.170.0110.00216.79
8.0.160.0070.00516.76
8.0.150.0100.00216.76
8.0.140.0070.00516.73
8.0.130.0080.00515.79
8.0.120.0060.00716.70
8.0.110.0060.00616.75
8.0.100.0090.00416.78
8.0.90.0070.00616.71
8.0.80.0090.00516.78
8.0.70.0090.00316.78
8.0.60.0100.00316.71
8.0.50.0060.00616.75
8.0.30.0080.00916.80
8.0.20.0140.00616.87
8.0.10.0080.00916.83
8.0.00.0100.00616.80
7.4.330.0040.00616.10
7.4.320.0040.00616.55
7.4.300.0080.00516.60
7.4.290.0090.00416.51
7.4.280.0080.00417.00
7.4.270.0100.00316.55
7.4.260.0080.00516.51
7.4.250.0070.00716.54
7.4.240.0090.00316.49
7.4.230.0100.00416.54
7.4.220.0060.00616.58
7.4.210.0070.00916.52
7.4.200.0080.00516.54
7.4.190.0140.00116.57
7.4.180.0090.00616.60
7.4.160.0100.00616.49
7.4.150.0090.00416.53
7.4.140.0110.00616.56
7.4.130.0110.00516.37
7.4.120.0120.00516.29
7.4.110.0090.00816.39
7.4.100.0090.00616.46
7.4.90.0070.00816.37
7.4.80.0090.00516.72
7.4.70.0080.00716.39
7.4.60.0070.00716.28
7.4.50.0110.00516.14
7.4.40.0080.00616.23
7.4.30.0090.00616.37
7.4.20.0070.00716.16
7.4.10.0090.00616.30
7.4.00.0070.00816.26
7.3.330.0110.00215.54
7.3.320.0070.00615.56
7.3.310.0080.00516.35
7.3.300.0080.00416.32
7.3.290.0080.00616.40
7.3.280.0110.00616.29
7.3.270.0110.00416.38
7.3.260.0080.00816.31
7.3.250.0100.00716.32
7.3.240.0100.00616.36
7.3.230.0110.00616.35
7.3.220.0120.00416.27
7.3.210.0110.00516.28
7.3.200.0100.00616.34
7.3.190.0090.00716.34
7.3.180.0090.00716.26
7.3.170.0100.00716.34
7.3.160.0090.00716.34
7.3.150.0110.00516.48
7.3.140.0090.00716.30
7.3.130.0090.00716.28
7.3.120.0090.00916.27
7.3.110.0080.00816.50
7.3.100.0080.00816.20
7.3.90.0080.01016.12
7.3.80.0080.00716.16
7.3.70.0090.00616.14
7.3.60.0090.00616.02
7.3.50.0080.00816.17
7.3.40.0090.00716.16
7.3.30.0100.00616.14
7.3.20.0110.00617.04
7.3.10.0180.00817.04
7.3.00.0110.00716.99
7.2.340.0150.00816.31
7.2.330.0130.00816.35
7.2.320.0140.00816.58
7.2.310.0130.00716.62
7.2.300.0130.00816.38
7.2.290.0120.00716.30
7.2.280.0110.00816.41
7.2.270.0120.00716.40
7.2.260.0130.00616.32
7.2.250.0140.00716.36
7.2.240.0100.01016.34
7.2.230.0130.00716.32
7.2.220.0100.01016.30
7.2.210.0120.00716.25
7.2.200.0120.00816.21
7.2.190.0120.00616.20
7.2.180.0130.00616.40
7.2.170.0120.00816.21
7.2.160.0130.00816.26
7.2.150.0140.00617.14
7.2.140.0120.00817.12
7.2.130.0130.00717.16
7.2.120.0130.00617.15
7.2.110.0140.00617.21
7.2.100.0120.00817.14
7.2.90.0100.01017.15
7.2.80.0120.00817.17
7.2.70.0120.00717.20
7.2.60.0150.00917.12
7.2.50.0150.00617.12
7.2.40.0170.00817.21
7.2.30.0140.00717.23
7.2.20.0130.00717.10
7.2.10.0120.00717.16
7.2.00.0150.00517.15
7.1.330.0140.00716.27
7.1.320.0130.00716.03
7.1.310.0120.00516.04
7.1.300.0120.00616.10
7.1.290.0100.00716.01
7.1.280.0110.00716.02
7.1.270.0180.00716.08
7.1.260.0160.00616.03
7.1.250.0100.00815.96
7.1.240.0130.00516.24
7.1.230.0130.00516.23
7.1.220.0090.00916.32
7.1.210.0130.00716.26
7.1.200.0120.00616.29
7.1.190.0110.00716.31
7.1.180.0120.00516.19
7.1.170.0130.00516.28
7.1.160.0110.00716.28
7.1.150.0120.00716.28
7.1.140.0110.00716.24
7.1.130.0130.00516.26
7.1.120.0110.00816.22
7.1.110.0100.00816.25
7.1.100.0100.00516.23
7.1.90.0090.00716.24
7.1.80.0110.00816.29
7.1.70.0090.00716.26
7.1.60.0100.00616.28
7.1.50.0080.01016.32
7.1.40.0120.00816.24
7.1.30.0100.00616.27
7.1.20.0100.00916.34
7.1.10.0100.00616.25
7.1.00.0080.00916.20

preferences:
55.22 ms | 401 KiB | 5 Q