3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('', 0, 5)); var_dump(substr(null, 0, 5)); var_dump(sprintf("%s", false));

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)
8.3.60.0090.01216.75
8.3.50.0040.01117.95
8.3.40.0130.00318.68
8.3.30.0110.00418.59
8.3.20.0050.00220.21
8.3.10.0030.00623.66
8.3.00.0080.00023.52
8.2.180.0120.00318.29
8.2.170.0140.01118.71
8.2.160.0100.00322.96
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0030.00519.38
8.2.120.0100.00726.35
8.2.110.0030.00622.29
8.2.100.0060.00617.68
8.2.90.0000.00819.09
8.2.80.0040.00417.97
8.2.70.0070.00317.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0040.00422.33
8.2.30.0070.00020.61
8.2.20.0040.00417.62
8.2.10.0000.00817.92
8.2.00.0030.00517.91
8.1.280.0090.00625.92
8.1.270.0090.00020.23
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0060.00321.97
8.1.230.0070.00319.16
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.10
8.1.190.0030.00516.88
8.1.180.0070.00018.10
8.1.170.0080.00018.49
8.1.160.0040.00420.63
8.1.150.0040.00418.78
8.1.140.0040.00419.43
8.1.130.0000.00717.50
8.1.120.0000.00717.26
8.1.110.0040.00417.38
8.1.100.0000.00817.33
8.1.90.0000.00717.28
8.1.80.0050.00217.35
8.1.70.0000.00717.21
8.1.60.0040.00417.43
8.1.50.0040.00417.30
8.1.40.0000.00917.29
8.1.30.0000.00817.50
8.1.20.0070.00017.42
8.1.10.0040.00417.27
8.1.00.0070.00017.35
8.0.300.0060.00318.77
8.0.290.0070.00016.63
8.0.280.0000.00718.32
8.0.270.0070.00017.03
8.0.260.0070.00017.13
8.0.250.0030.00316.81
8.0.240.0040.00416.89
8.0.230.0000.00716.71
8.0.220.0050.00216.73
8.0.210.0000.00716.76
8.0.200.0060.00016.85
8.0.190.0000.00816.84
8.0.180.0030.00316.83
8.0.170.0040.00416.82
8.0.160.0040.00416.78
8.0.150.0030.00316.59
8.0.140.0060.00316.59
8.0.130.0030.00313.15
8.0.120.0080.00016.75
8.0.110.0000.00816.68
8.0.100.0080.00016.65
8.0.90.0000.00716.64
8.0.80.0090.01116.82
8.0.70.0040.00416.66
8.0.60.0030.00516.87
8.0.50.0050.00316.78
8.0.30.0120.00517.04
8.0.20.0050.01317.40
8.0.10.0030.00316.74
8.0.00.0080.01016.53
7.4.330.0000.00616.76
7.4.320.0070.00016.38
7.4.300.0030.00316.46
7.4.290.0040.00416.46
7.4.280.0070.00016.37
7.4.270.0000.00616.52
7.4.260.0040.00416.47
7.4.250.0050.00316.25
7.4.240.0040.00416.38
7.4.230.0070.00016.46
7.4.220.0090.00616.31
7.4.210.0130.00716.29
7.4.200.0040.00316.47
7.4.160.0130.00616.32
7.4.150.0140.00317.40
7.4.140.0080.01517.86
7.4.130.0120.00616.44
7.4.120.0080.01116.35
7.4.110.0080.01116.21
7.4.100.0130.00616.46
7.4.90.0100.00716.35
7.4.80.0120.01219.39
7.4.70.0130.00416.35
7.4.60.0100.01016.49
7.4.50.0080.00516.11
7.4.40.0100.00716.43
7.4.30.0130.00516.47
7.4.00.0000.01414.88
7.3.330.0060.00013.04
7.3.320.0000.00612.87
7.3.310.0070.00016.21
7.3.300.0000.00716.15
7.3.290.0020.01216.13
7.3.280.0060.01116.13
7.3.270.0100.00717.40
7.3.260.0080.00816.06
7.3.250.0070.01116.18
7.3.240.0110.00816.09
7.3.230.0090.01216.39
7.3.210.0130.00316.06
7.3.200.0070.01116.14
7.3.190.0080.01216.06
7.3.180.0120.00316.24
7.3.170.0130.00916.27
7.3.160.0090.00616.39
7.3.10.0130.00316.55
7.3.00.0080.00616.28
7.2.330.0070.01016.46
7.2.320.0140.01016.29
7.2.310.0160.00616.27
7.2.300.0100.01316.56
7.2.290.0070.01016.53
7.2.130.0070.00716.79
7.2.120.0100.00316.55
7.2.110.0060.00616.81
7.2.100.0070.00416.88
7.2.90.0090.00616.71
7.2.80.0040.00716.71
7.2.70.0100.00016.80
7.2.60.0030.01116.61
7.2.50.0110.00616.57
7.2.40.0060.00616.75
7.2.30.0070.01016.39
7.2.20.0080.00416.53
7.2.10.0070.00416.46
7.2.00.0080.00718.10
7.1.250.0000.01015.62
7.1.200.0060.00315.51
7.1.100.0000.01417.76
7.1.70.0000.00816.74
7.1.60.0060.01819.52
7.1.50.0120.00616.83
7.1.00.0000.08022.28
7.0.200.0000.00816.57
7.0.60.0230.06020.00
7.0.50.0170.07017.83
7.0.40.0030.04320.12
7.0.30.0370.07720.17
7.0.20.0300.06720.09
7.0.10.0170.07320.06
7.0.00.0130.06320.20
5.6.280.0000.06721.07
5.6.210.0170.04720.68
5.6.200.0100.07718.18
5.6.190.0070.07020.60
5.6.180.0300.07320.48
5.6.170.0270.07720.57
5.6.160.0000.06020.38
5.6.150.0070.05318.18
5.6.140.0030.08318.11
5.6.130.0070.04718.13
5.6.120.0130.04021.11
5.6.110.0130.07321.08
5.6.100.0070.04321.00
5.6.90.0100.08021.12
5.6.80.0100.08020.37
5.5.350.0330.07320.32
5.5.340.0130.05018.01
5.5.330.0030.04320.16
5.5.320.0330.07320.24
5.5.310.0370.05720.16
5.5.300.0100.08018.01
5.5.290.0100.08717.98
5.5.280.0070.08020.63
5.5.270.0200.06720.95
5.5.260.0000.09320.87
5.5.250.0070.04020.75
5.5.240.0230.07020.15

preferences:
70.32 ms | 400 KiB | 5 Q