3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace a; \substr('asdas', 1);

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)
8.3.60.0100.00716.75
8.3.50.0070.01018.02
8.3.40.0120.00418.42
8.3.30.0080.00818.46
8.3.20.0040.00420.21
8.3.10.0080.00021.83
8.3.00.0070.00719.56
8.2.180.0120.00616.63
8.2.170.0100.01022.96
8.2.160.0070.00718.91
8.2.150.0040.01124.18
8.2.140.0000.00824.66
8.2.130.0040.00419.22
8.2.120.0040.00426.35
8.2.110.0050.00520.55
8.2.100.0060.00617.78
8.2.90.0040.00419.05
8.2.80.0080.00017.97
8.2.70.0000.00817.25
8.2.60.0030.00617.80
8.2.50.0030.00518.10
8.2.40.0030.00622.27
8.2.30.0040.00419.16
8.2.20.0000.00917.84
8.2.10.0000.00717.79
8.2.00.0040.00417.83
8.1.280.0140.00725.92
8.1.270.0150.00422.13
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00622.74
8.1.230.0100.00018.91
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0090.00317.10
8.1.190.0060.00317.11
8.1.180.0040.00418.10
8.1.170.0080.00018.64
8.1.160.0050.00218.90
8.1.150.0040.00418.80
8.1.140.0070.00019.44
8.1.130.0030.00318.68
8.1.120.0040.00417.32
8.1.110.0000.00717.35
8.1.100.0040.00417.32
8.1.90.0000.00717.29
8.1.80.0040.00417.33
8.1.70.0030.00517.33
8.1.60.0060.00317.39
8.1.50.0070.00417.43
8.1.40.0050.00317.23
8.1.30.0000.00717.39
8.1.20.0020.00517.56
8.1.10.0040.00417.36
8.1.00.0050.00317.17
8.0.300.0040.00418.77
8.0.290.0040.00416.58
8.0.280.0070.00018.35
8.0.270.0040.00417.04
8.0.260.0030.00318.65
8.0.250.0030.00316.77
8.0.240.0000.00816.83
8.0.230.0040.00416.84
8.0.220.0000.00816.73
8.0.210.0040.00416.79
8.0.200.0030.00316.85
8.0.190.0000.00816.88
8.0.180.0040.00416.66
8.0.170.0040.00416.68
8.0.160.0030.00316.79
8.0.150.0000.00816.73
8.0.140.0030.00716.60
8.0.130.0000.00813.19
8.0.120.0030.00516.71
8.0.110.0050.00216.86
8.0.100.0000.00816.67
8.0.90.0070.00016.74
8.0.80.0100.00716.72
8.0.70.0040.00416.81
8.0.60.0050.00316.57
8.0.50.0040.00416.63
8.0.30.0140.00617.01
8.0.20.0090.01117.40
8.0.10.0030.00516.70
8.0.00.0070.01116.66
7.4.330.0000.00515.55
7.4.320.0030.00316.34
7.4.300.0000.00616.50
7.4.290.0000.00816.47
7.4.280.0000.00816.35
7.4.270.0030.00616.45
7.4.260.0050.00316.36
7.4.250.0070.00016.30
7.4.240.0030.00316.41
7.4.230.0040.00416.51
7.4.220.0100.00716.47
7.4.210.0060.01016.38
7.4.200.0070.00016.55
7.4.160.0100.00716.27
7.4.150.0160.01017.40
7.4.140.0100.01017.86
7.4.130.0170.00716.49
7.4.120.0080.01216.29
7.4.110.0100.00716.38
7.4.100.0060.01216.44
7.4.90.0080.00916.32
7.4.80.0100.00719.39
7.4.70.0090.01216.32
7.4.60.0090.00616.30
7.4.50.0060.01015.95
7.4.40.0120.00316.51
7.4.30.0100.00616.37
7.4.00.0140.00414.79
7.3.330.0020.00213.11
7.3.320.0020.00312.92
7.3.310.0070.00015.99
7.3.300.0000.00616.14
7.3.290.0030.00316.15
7.3.280.0090.00716.13
7.3.270.0120.00617.40
7.3.260.0100.00716.17
7.3.250.0090.00816.03
7.3.240.0100.00616.07
7.3.230.0110.00716.46
7.3.210.0160.00316.24
7.3.200.0030.01316.30
7.3.190.0040.01516.39
7.3.180.0080.00816.45
7.3.170.0060.00916.31
7.3.160.0060.00916.19
7.2.330.0090.00916.41
7.2.320.0130.00316.51
7.2.310.0110.01116.52
7.2.300.0030.01416.53
7.2.290.0080.00816.33
7.2.110.0220.00915.83
7.2.60.0070.00716.48
7.1.200.0070.00415.60
7.1.70.0470.00517.35
7.1.60.0620.01317.35
7.1.50.0610.01117.35
7.1.40.1080.00717.35
7.1.30.0800.01317.35
7.1.20.0700.01017.35
7.1.10.0720.00617.35
7.1.00.0570.01017.35
7.0.200.0590.00617.35
7.0.190.0850.00317.35
7.0.180.0770.00917.35
7.0.170.0780.00317.35
7.0.160.0740.00617.35
7.0.150.0940.00417.35
7.0.140.0680.00317.35
7.0.130.0660.00917.35
7.0.120.0770.00317.35
7.0.110.0610.00617.35
7.0.100.0480.00717.35
7.0.90.0630.01017.35
7.0.80.0980.00417.35
7.0.70.1550.01017.35
7.0.60.0430.01017.35
7.0.50.0600.00117.35
7.0.40.0100.00817.35
7.0.30.0090.00217.35
7.0.20.0000.01217.35
7.0.10.0080.00417.35
7.0.00.0050.00517.35

preferences:
59.65 ms | 401 KiB | 5 Q