3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ttt = "/asdfasdfasdf"; var_dump($ttt{0}); var_dump($ttt[0]);

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)
8.3.60.0100.01016.75
8.3.50.0100.01021.93
8.3.40.0070.00718.79
8.3.30.0100.00718.89
8.3.20.0060.00320.24
8.3.10.0040.00423.66
8.3.00.0050.00319.21
8.2.180.0070.01416.32
8.2.170.0110.00422.96
8.2.160.0070.00722.13
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00421.05
8.2.110.0060.00322.30
8.2.100.0080.00417.84
8.2.90.0050.00317.60
8.2.80.0030.00518.70
8.2.70.0000.00817.80
8.2.60.0080.00017.91
8.2.50.0040.00419.20
8.2.40.0060.00319.34
8.2.30.0030.00519.18
8.2.20.0050.00217.61
8.2.10.0020.00517.94
8.2.00.0050.00317.60
8.1.280.0100.01025.92
8.1.270.0060.00318.77
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0060.00323.83
8.1.230.0000.01120.89
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0000.00917.23
8.1.190.0040.00416.98
8.1.180.0000.00818.88
8.1.170.0030.00618.65
8.1.160.0070.00018.94
8.1.150.0000.00718.85
8.1.140.0000.00717.32
8.1.130.0030.00317.80
8.1.120.0070.00417.35
8.1.110.0000.00717.28
8.1.100.0040.00417.31
8.1.90.0000.00817.30
8.1.80.0030.00617.32
8.1.70.0000.00717.33
8.1.60.0000.01117.44
8.1.50.0040.00417.40
8.1.40.0040.00417.28
8.1.30.0040.00417.52
8.1.20.0000.00717.44
8.1.10.0070.00017.37
8.1.00.0040.00417.28
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0040.00418.24
8.0.270.0040.00417.16
8.0.260.0060.00018.18
8.0.250.0000.00716.87
8.0.240.0000.00716.88
8.0.230.0040.00416.78
8.0.220.0030.00316.81
8.0.210.0040.00416.80
8.0.200.0030.00316.79
8.0.190.0000.00716.74
8.0.180.0030.00316.77
8.0.170.0000.00716.84
8.0.160.0000.00716.95
8.0.150.0000.00716.72
8.0.140.0000.00716.66
8.0.130.0030.00313.28
8.0.120.0060.00316.73
8.0.110.0070.00016.65
8.0.100.0040.00416.83
8.0.90.0040.00416.76
8.0.80.0150.00316.80
8.0.70.0000.00716.74
8.0.60.0030.00616.85
8.0.50.0080.00016.93
8.0.30.0180.00717.02
8.0.20.0150.00617.40
8.0.10.0030.00316.79
8.0.00.0090.01116.59
7.4.330.0050.00015.03
7.4.320.0000.00616.54
7.4.300.0030.00316.61
7.4.290.0060.00016.36
7.4.280.0050.00316.42
7.4.270.0030.00316.51
7.4.260.0030.00316.51
7.4.250.0000.00716.47
7.4.240.0040.00316.51
7.4.230.0040.00216.55
7.4.220.0070.01116.45
7.4.210.0090.01216.61
7.4.200.0050.00316.41
7.4.160.0060.00916.35
7.4.150.0130.00717.40
7.4.140.0130.00817.86
7.4.130.0080.01316.42
7.4.120.0020.01616.53
7.4.110.0060.02016.68
7.4.100.0200.00316.25
7.4.90.0070.01016.45
7.4.80.0060.01019.39
7.4.70.0070.01316.48
7.4.60.0100.00616.36
7.4.50.0030.00616.49
7.4.40.0140.00316.46
7.4.30.0100.00716.45
7.4.00.0100.00714.96
7.3.330.0000.00613.14
7.3.320.0000.00712.93
7.3.310.0030.00516.14
7.3.300.0030.00316.15
7.3.290.0090.00616.18
7.3.280.0090.00816.18
7.3.270.0090.01417.40
7.3.260.0120.00516.21
7.3.250.0130.00816.37
7.3.240.0120.00916.18
7.3.230.0120.00416.40
7.3.210.0070.01116.30
7.3.200.0100.00719.39
7.3.190.0060.00916.54
7.3.180.0030.01216.52
7.3.170.0090.00916.27
7.3.160.0100.00716.13
7.2.330.0120.00616.52
7.2.320.0100.01616.57
7.2.310.0110.00616.67
7.2.300.0170.00316.64
7.2.290.0100.01016.55
7.2.00.0090.00619.41
7.1.100.0090.00317.75
7.1.70.0000.00817.22
7.1.60.0070.00719.22
7.1.50.0030.01716.96
7.1.00.0030.07722.28
7.0.200.0030.00716.56
7.0.140.0000.03721.95
7.0.60.0070.08319.84
7.0.50.0130.07317.73
7.0.40.0130.03320.20
7.0.30.0300.07720.30
7.0.20.0470.06720.16
7.0.10.0170.07720.02
7.0.00.0130.07320.04
5.6.280.0000.07021.06
5.6.210.0100.07320.62
5.6.200.0030.04018.16
5.6.190.0030.06020.41
5.6.180.0270.07320.68
5.6.170.0230.03320.46
5.6.160.0070.04320.50
5.6.150.0100.04318.11
5.6.140.0030.05018.16
5.6.130.0030.08018.16
5.6.120.0170.07321.00
5.6.110.0170.07020.98
5.6.100.0070.06320.98
5.6.90.0100.07021.01
5.6.80.0300.06020.35
5.5.350.0100.05020.52
5.5.340.0070.05318.02
5.5.330.0030.07020.40
5.5.320.0300.04020.29
5.5.310.0200.03320.18
5.5.300.0030.05318.01
5.5.290.0030.07717.97
5.5.280.0070.04320.68
5.5.270.0070.07320.75
5.5.260.0030.08020.79
5.5.250.0030.04020.68
5.5.240.0030.07720.16
5.4.450.0900.06719.52
5.4.440.0130.05719.25
5.4.430.0170.05719.55
5.4.420.0170.05319.37
5.4.410.0030.06719.26
5.4.400.0100.05719.09
5.4.390.0330.06018.52
5.4.380.0430.04318.65
5.4.370.0370.05018.72
5.4.360.0330.05018.57
5.4.350.0370.06718.67
5.4.340.0300.06018.67
5.4.320.0300.05318.51
5.4.310.0230.06718.68
5.4.300.0370.04718.63
5.4.290.0270.05318.47
5.4.280.0330.05318.56
5.4.270.0200.06318.55
5.4.260.0330.05318.53
5.4.250.0200.06318.57
5.4.240.0300.05318.64
5.4.230.0270.05018.54
5.4.220.0300.05018.54
5.4.210.0300.04718.50
5.4.200.0300.04716.61
5.4.190.0330.04718.55
5.4.180.0270.05318.50
5.4.170.0200.06018.50
5.4.160.0300.06018.38
5.4.150.0330.04718.54
5.4.140.0300.05016.25
5.4.130.0200.05716.08
5.4.120.0400.05316.16
5.4.110.0300.04716.19
5.4.100.0200.05716.31
5.4.90.0200.06016.14
5.4.80.0300.05316.24
5.4.70.0300.06015.97
5.4.60.0300.04716.10
5.4.50.0230.05316.18
5.4.40.0330.04716.26
5.4.30.0400.05716.14
5.4.20.0430.03716.04
5.4.10.0200.06016.11
5.4.00.0270.05315.60
5.3.290.0400.05314.66
5.3.280.0300.05314.56
5.3.270.0500.06014.70
5.3.260.0400.07314.49
5.3.250.0230.05714.50
5.3.240.0270.06014.60
5.3.230.0300.06314.67
5.3.220.0370.05714.50
5.3.210.0230.06014.49
5.3.200.0200.06314.47
5.3.190.0400.04714.49
5.3.180.0300.05314.45
5.3.170.0370.04714.56
5.3.160.0370.05014.65
5.3.150.0400.06314.59
5.3.140.0370.05314.54
5.3.130.0400.04714.52
5.3.120.0330.07314.64
5.3.110.0400.06314.54
5.3.100.0270.05314.11
5.3.90.0230.05714.11
5.3.80.0200.05714.01
5.3.70.0270.05014.09
5.3.60.0370.04313.96
5.3.50.0430.03713.89
5.3.40.0270.05014.05
5.3.30.0230.05313.88
5.3.20.0300.04313.66
5.3.10.0330.04313.64
5.3.00.0300.04713.63
5.2.170.0330.04711.29
5.2.160.0200.04011.12
5.2.150.0200.04311.17
5.2.140.0200.04311.05
5.2.130.0230.03711.14
5.2.120.0230.03711.13
5.2.110.0170.04311.04
5.2.100.0330.02711.09
5.2.90.0230.04011.13
5.2.80.0230.04311.02
5.2.70.0270.04311.08
5.2.60.0370.03711.00
5.2.50.0230.03711.07
5.2.40.0230.03710.96
5.2.30.0130.04311.11
5.2.20.0100.04710.92
5.2.10.0200.03710.91
5.2.00.0170.04310.85
5.1.60.0130.03710.00
5.1.50.0200.0339.96
5.1.40.0170.0339.95
5.1.30.0130.04010.48
5.1.20.0130.04010.38
5.1.10.0170.03310.17
5.1.00.0130.04310.16
5.0.50.0170.0278.59
5.0.40.0130.0278.52
5.0.30.0100.0438.31
5.0.20.0070.0308.37
5.0.10.0070.0308.14
5.0.00.0100.0438.25
4.4.90.0130.0175.88
4.4.80.0030.0275.90
4.4.70.0030.0275.93
4.4.60.0100.0235.89
4.4.50.0100.0205.86
4.4.40.0070.0375.91
4.4.30.0030.0275.91
4.4.20.0130.0275.93
4.4.10.0070.0275.91
4.4.00.0130.0305.93
4.3.110.0000.0305.82
4.3.100.0030.0235.77
4.3.90.0070.0205.79
4.3.80.0030.0405.86
4.3.70.0100.0205.88
4.3.60.0200.0105.76
4.3.50.0130.0175.78
4.3.40.0030.0375.75
4.3.30.0070.0204.55
4.3.20.0030.0234.66
4.3.10.0030.0234.53
4.3.00.0070.0207.22

preferences:
52.05 ms | 401 KiB | 5 Q