3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'string'; echo $var[count($var)];

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)
8.3.60.0060.01216.63
8.3.50.0040.01421.09
8.3.40.0040.01118.87
8.3.30.0100.00718.81
8.3.20.0050.00320.07
8.3.10.0040.00423.31
8.3.00.0060.00321.79
8.2.180.0100.01416.50
8.2.170.0130.00622.96
8.2.160.0110.00320.35
8.2.150.0000.00924.18
8.2.140.0090.00024.66
8.2.130.0040.00421.07
8.2.120.0070.00726.35
8.2.110.0030.00621.12
8.2.100.0090.00317.79
8.2.90.0040.00419.23
8.2.80.0050.00318.04
8.2.70.0030.00617.63
8.2.60.0030.00618.04
8.2.50.0080.00018.07
8.2.40.0000.00720.35
8.2.30.0040.00419.34
8.2.20.0080.00017.74
8.2.10.0070.00018.11
8.2.00.0000.00818.21
8.1.280.0070.01125.92
8.1.270.0080.00022.19
8.1.260.0040.00428.09
8.1.250.0030.00528.09
8.1.240.0090.00022.42
8.1.230.0070.00419.10
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0000.01017.23
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0080.00018.50
8.1.160.0040.00420.69
8.1.150.0040.00418.88
8.1.140.0040.00419.56
8.1.130.0030.00317.62
8.1.120.0030.00517.46
8.1.110.0000.00817.34
8.1.100.0070.00017.50
8.1.90.0060.00317.43
8.1.80.0040.00417.36
8.1.70.0070.00017.35
8.1.60.0000.00717.51
8.1.50.0040.00417.48
8.1.40.0080.00017.52
8.1.30.0060.00317.69
8.1.20.0000.00717.62
8.1.10.0060.00317.48
8.1.00.0000.00717.36
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0040.00418.41
8.0.270.0000.00717.25
8.0.260.0000.00617.13
8.0.250.0000.00616.85
8.0.240.0030.00316.92
8.0.230.0000.00716.90
8.0.220.0070.00016.91
8.0.210.0040.00416.83
8.0.200.0060.00316.77
8.0.190.0080.00016.96
8.0.180.0050.00316.82
8.0.170.0070.00016.95
8.0.160.0000.00816.97
8.0.150.0040.00416.88
8.0.140.0000.00716.73
8.0.130.0050.00013.41
8.0.120.0060.00316.80
8.0.110.0000.00716.96
8.0.100.0050.00216.96
8.0.90.0000.00716.82
8.0.80.0060.00916.96
8.0.70.0050.00216.81
8.0.60.0070.00016.81
8.0.50.0020.00517.00
8.0.30.0090.00716.80
8.0.20.0110.00817.40
8.0.10.0040.00417.02
8.0.00.0130.00616.73
7.4.330.0060.00016.67
7.4.320.0000.00616.54
7.4.300.0030.00316.58
7.4.290.0030.00616.56
7.4.280.0040.00416.41
7.4.270.0030.00316.48
7.4.260.0070.00416.52
7.4.250.0000.00816.45
7.4.240.0040.00416.48
7.4.230.0030.00316.40
7.4.220.0100.01016.62
7.4.210.0090.00616.53
7.4.200.0000.00716.70
7.4.160.0060.00916.39
7.4.150.0080.01217.40
7.4.140.0060.01417.86
7.4.130.0100.00816.55
7.4.120.0100.00616.53
7.4.110.0000.01716.52
7.4.100.0090.00916.48
7.4.90.0100.00716.59
7.4.80.0120.00919.39
7.4.70.0110.00416.65
7.4.60.0150.00316.48
7.4.50.0060.00916.58
7.4.40.0030.01316.57
7.4.30.0070.01016.29
7.4.00.0070.00014.84
7.3.330.0050.00013.30
7.3.320.0000.00513.03
7.3.310.0030.00316.46
7.3.300.0030.00316.30
7.3.290.0060.00916.32
7.3.280.0100.00716.38
7.3.270.0070.01017.40
7.3.260.0070.01016.39
7.3.250.0090.00716.47
7.3.240.0070.01216.48
7.3.230.0060.01016.39
7.3.210.0180.00316.38
7.3.200.0130.00319.39
7.3.190.0060.00916.26
7.3.180.0060.00916.44
7.3.170.0080.00816.47
7.3.160.0090.00616.38
7.2.330.0140.00616.63
7.2.320.0170.00616.57
7.2.310.0100.00716.40
7.2.300.0090.00916.41
7.2.290.0060.01616.64
7.2.60.0100.00617.03
7.2.00.0030.01019.41
7.1.200.0000.01315.84
7.1.100.0000.00917.81
7.1.70.0060.00317.31
7.1.60.0030.02019.40
7.1.50.0100.01316.60
7.1.00.0030.07322.43
7.0.200.0040.00416.87
7.0.60.0170.07721.63
7.0.50.0030.08317.85
7.0.40.0030.05720.02
7.0.30.0230.03720.17
7.0.20.0330.08020.21
7.0.10.0000.07320.10
7.0.00.0030.06020.18
5.6.210.0030.08320.48
5.6.200.0200.06718.09
5.6.190.0030.08320.79
5.6.180.0170.04320.43
5.6.170.0370.05020.51
5.6.160.0070.05020.50
5.6.150.0130.07318.22
5.6.140.0030.04018.11
5.6.130.0030.04318.11
5.6.120.0070.04320.98
5.6.110.0030.08321.00
5.6.100.0030.06020.95
5.6.90.0130.08020.98
5.6.80.0130.06720.37
5.5.350.0370.06720.32
5.5.340.0100.05017.88
5.5.330.0070.09320.56
5.5.320.0470.04720.29
5.5.310.0070.05020.18
5.5.300.0070.04717.97
5.5.290.0000.04318.02
5.5.280.0030.09020.64
5.5.270.0000.04320.64
5.5.260.0170.06720.75
5.5.250.0270.06320.55
5.5.240.0200.07320.27

preferences:
47.56 ms | 401 KiB | 5 Q