3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('haha', 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)
8.3.60.0100.01018.30
8.3.50.0040.01116.29
8.3.40.0120.00318.58
8.3.30.0090.00618.39
8.3.20.0040.00420.20
8.3.10.0080.00023.52
8.3.00.0040.00419.67
8.2.180.0120.00918.07
8.2.170.0150.00022.96
8.2.160.0100.00320.27
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0050.00320.50
8.2.110.0040.00719.30
8.2.100.0110.00017.59
8.2.90.0000.00717.91
8.2.80.0040.00417.97
8.2.70.0000.00917.91
8.2.60.0000.00917.80
8.2.50.0060.00318.10
8.2.40.0040.00820.38
8.2.30.0080.00019.23
8.2.20.0030.00617.93
8.2.10.0000.00717.81
8.2.00.0000.00818.23
8.1.280.0070.01125.92
8.1.270.0080.00023.97
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00022.30
8.1.230.0070.00720.93
8.1.220.0040.00417.74
8.1.210.0040.00418.90
8.1.200.0050.00317.11
8.1.190.0030.00617.10
8.1.180.0040.00418.10
8.1.170.0040.00418.40
8.1.160.0080.00018.63
8.1.150.0040.00420.18
8.1.140.0040.00417.62
8.1.130.0040.00418.95
8.1.120.0030.00417.34
8.1.110.0000.00717.34
8.1.100.0040.00417.26
8.1.90.0040.00417.33
8.1.80.0030.00617.30
8.1.70.0000.00717.34
8.1.60.0030.00517.46
8.1.50.0040.00417.39
8.1.40.0000.00817.39
8.1.30.0040.00417.48
8.1.20.0000.00817.55
8.1.10.0040.00417.28
8.1.00.0040.00417.23
8.0.300.0080.00019.91
8.0.290.0000.01116.63
8.0.280.0030.00318.31
8.0.270.0050.00217.02
8.0.260.0000.00616.64
8.0.250.0000.00716.69
8.0.240.0040.00416.70
8.0.230.0070.00016.84
8.0.220.0000.00816.80
8.0.210.0000.00816.75
8.0.200.0060.00016.79
8.0.190.0040.00416.79
8.0.180.0040.00416.70
8.0.170.0040.00416.70
8.0.160.0040.00416.85
8.0.150.0040.00416.78
8.0.140.0060.00316.73
8.0.130.0050.00013.22
8.0.120.0040.00416.78
8.0.110.0040.00416.71
8.0.100.0070.00016.59
8.0.90.0030.00516.77
8.0.80.0080.00816.76
8.0.70.0040.00416.54
8.0.60.0050.00216.66
8.0.50.0000.00716.66
8.0.30.0030.01317.17
8.0.20.0100.01117.40
8.0.10.0030.00316.95
8.0.00.0060.01116.67
7.4.330.0020.00215.55
7.4.320.0030.00316.23
7.4.300.0000.00616.34
7.4.290.0040.00416.47
7.4.280.0050.00216.29
7.4.270.0030.00316.37
7.4.260.0040.00416.50
7.4.250.0040.00416.29
7.4.240.0070.00016.38
7.4.230.0030.00316.58
7.4.220.0000.00816.36
7.4.210.0110.00416.51
7.4.200.0040.00416.22
7.4.160.0080.00816.29
7.4.150.0060.01217.40
7.4.140.0130.00717.86
7.4.130.0060.01216.34
7.4.120.0070.01316.44
7.4.110.0060.01016.18
7.4.100.0120.00416.36
7.4.90.0120.00616.27
7.4.80.0090.00919.39
7.4.70.0150.00416.16
7.4.60.0130.01016.29
7.4.50.0000.01516.22
7.4.40.0150.00616.17
7.4.00.0070.01014.75
7.3.330.0050.00013.04
7.3.320.0060.00013.12
7.3.310.0040.00416.00
7.3.300.0070.00016.09
7.3.290.0110.00616.11
7.3.280.0120.00616.12
7.3.270.0100.00717.40
7.3.260.0130.00516.32
7.3.240.0090.00816.29
7.3.230.0090.01216.40
7.3.210.0090.00916.11
7.3.200.0080.00816.34
7.3.190.0110.00516.10
7.3.180.0070.01316.26
7.3.170.0060.00916.39
7.3.160.0100.01016.22
7.3.10.0090.00416.35
7.3.00.0130.00316.32
7.2.330.0030.01316.34
7.2.320.0070.01116.16
7.2.310.0120.00916.52
7.2.300.0120.00916.48
7.2.290.0120.00416.59
7.2.130.0090.00816.51
7.2.120.0090.00916.39
7.2.110.0070.01216.34
7.2.100.0090.01216.25
7.2.90.0130.01316.40
7.2.80.0110.01216.53
7.2.70.0190.00616.40
7.2.60.0110.00816.41
7.2.50.0130.00516.49
7.2.40.0130.00916.50
7.2.30.0100.01116.65
7.2.20.0130.00817.38
7.2.10.0070.01117.59
7.2.00.0100.00917.64
7.1.250.0080.00715.23
7.1.200.0060.00315.71
7.1.140.0070.01118.21
7.1.130.0080.01118.79
7.1.120.0100.01218.54
7.1.110.0080.01417.92
7.1.100.0120.00918.04
7.1.90.0080.01217.91
7.1.80.0080.00918.09
7.1.70.0080.00816.90
7.1.60.0350.01034.74
7.1.50.0250.02134.41
7.1.40.0300.00934.26
7.1.30.0190.01634.30
7.1.20.0260.01934.39
7.1.10.0060.01016.39
7.1.00.0060.00916.80

preferences:
60.15 ms | 401 KiB | 5 Q