3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "foo"; echo $a[-1]; echo $a[32];

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)
8.3.40.0100.00718.97
8.3.30.0100.00318.95
8.3.20.0040.00420.18
8.3.10.0040.00420.56
8.3.00.0040.00419.26
8.2.170.0100.00722.96
8.2.160.0110.00420.57
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0000.00821.95
8.2.110.0090.00022.10
8.2.100.0060.00617.97
8.2.90.0040.00419.26
8.2.80.0000.00817.97
8.2.70.0090.00017.63
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0040.00418.06
8.2.30.0030.00319.35
8.2.20.0000.00717.79
8.2.10.0080.00017.95
8.2.00.0070.00017.58
8.1.270.0040.00422.14
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00623.71
8.1.230.0050.00519.02
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00617.13
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0000.00818.59
8.1.160.0000.00721.88
8.1.150.0000.00818.74
8.1.140.0030.00317.41
8.1.130.0070.00017.88
8.1.120.0000.00717.46
8.1.110.0000.00717.28
8.1.100.0030.00317.34
8.1.90.0000.00717.39
8.1.80.0000.00717.35
8.1.70.0000.00717.31
8.1.60.0000.00917.44
8.1.50.0000.00917.35
8.1.40.0080.00017.42
8.1.30.0030.00617.63
8.1.20.0040.00417.49
8.1.10.0040.00417.51
8.1.00.0070.00017.38
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0070.00018.46
8.0.270.0040.00417.16
8.0.260.0000.00617.25
8.0.250.0040.00417.06
8.0.240.0030.00317.00
8.0.230.0030.00316.84
8.0.220.0000.00616.74
8.0.210.0040.00416.91
8.0.200.0000.00616.99
8.0.190.0000.00716.93
8.0.180.0000.00716.88
8.0.170.0000.00916.89
8.0.160.0030.00516.93
8.0.150.0000.00816.84
8.0.140.0000.00816.87
8.0.130.0050.00013.35
8.0.120.0000.00816.85
8.0.110.0000.00816.86
8.0.100.0040.00416.83
8.0.90.0000.00716.93
8.0.80.0130.00616.92
8.0.70.0050.00216.84
8.0.60.0000.00716.95
8.0.50.0030.00316.94
8.0.30.0100.01117.05
8.0.20.0120.00617.40
8.0.10.0030.00516.84
8.0.00.0080.00916.67
7.4.330.0020.00215.00
7.4.320.0030.00316.43
7.4.300.0030.00316.50
7.4.290.0080.00016.52
7.4.280.0040.00416.33
7.4.270.0000.00716.42
7.4.260.0040.00416.41
7.4.250.0080.00016.38
7.4.240.0020.00516.47
7.4.230.0030.00316.55
7.4.220.0140.00316.52
7.4.210.0040.00916.48
7.4.200.0030.00316.50
7.4.160.0170.00316.61
7.4.150.0070.01017.40
7.4.140.0100.00817.86
7.4.130.0080.00816.58
7.4.120.0030.01316.42
7.4.110.0150.01816.62
7.4.100.0110.00716.71
7.4.90.0120.00416.46
7.4.80.0120.00919.39
7.4.70.0080.00816.41
7.4.60.0000.01616.25
7.4.50.0040.00416.61
7.4.40.0090.00916.49
7.4.30.0100.00716.41
7.4.00.0090.01015.05
7.3.330.0000.00713.00
7.3.320.0050.00013.17
7.3.310.0040.00416.18
7.3.300.0030.00316.16
7.3.290.0000.01516.29
7.3.280.0070.00716.20
7.3.270.0060.01117.40
7.3.260.0100.01016.22
7.3.250.0130.00516.19
7.3.240.0080.00916.21
7.3.230.0060.01016.39
7.3.210.0080.00916.44
7.3.200.0200.00019.39
7.3.190.0160.00016.28
7.3.180.0160.00016.41
7.3.170.0060.00916.31
7.3.160.0100.00716.30
7.3.120.0030.01714.93
7.3.110.0110.00614.83
7.3.100.0030.01414.64
7.3.90.0120.00314.80
7.3.80.0070.00714.91
7.3.70.0030.00714.68
7.3.60.0000.00814.63
7.3.50.0100.01014.60
7.3.40.0120.00614.79
7.3.30.0110.00014.49
7.3.20.0030.00916.72
7.3.10.0000.01316.88
7.3.00.0030.01016.80
7.2.330.0090.00816.28
7.2.320.0070.01716.46
7.2.310.0070.01116.70
7.2.300.0130.00316.66
7.2.290.0150.00616.41
7.2.250.0040.01414.97
7.2.240.0030.01614.97
7.2.230.0030.01314.89
7.2.220.0110.00415.04
7.2.210.0060.00914.72
7.2.200.0090.00614.69
7.2.190.0040.01415.09
7.2.180.0060.01214.86
7.2.170.0040.01514.80
7.2.60.0040.01116.75
7.2.00.0090.00919.49
7.1.330.0000.01315.63
7.1.320.0000.00915.55
7.1.310.0000.00815.83
7.1.300.0060.00915.73
7.1.290.0090.00315.52
7.1.280.0060.01215.79
7.1.270.0030.00815.51
7.1.260.0040.00815.41
7.1.200.0000.00715.71
7.1.100.0060.00618.02
7.1.70.0120.00017.05
7.1.60.0120.00319.61
7.1.50.0180.00716.82
7.1.00.0030.07722.40
7.0.200.0170.00714.53
7.0.140.0030.07321.93
7.0.60.0030.08319.78
7.0.50.0230.06317.90
7.0.40.0100.08020.30
7.0.30.0330.05020.19
7.0.20.0170.04320.30
7.0.10.0170.07720.20
7.0.00.0000.04320.29
5.6.280.0070.07020.90
5.6.210.0100.06020.64
5.6.200.0030.04718.22
5.6.190.0170.08020.60
5.6.180.0570.04020.63
5.6.170.0470.07020.41
5.6.160.0100.07320.50
5.6.150.0100.08018.18
5.6.140.0000.05318.13
5.6.130.0170.07018.11
5.6.120.0170.07320.76
5.6.110.0100.06721.12
5.6.100.0030.09020.97
5.6.90.0000.04720.97
5.6.80.0100.06320.36
5.5.350.0170.05320.32
5.5.340.0100.07317.95
5.5.330.0070.04320.14
5.5.320.0300.05020.20
5.5.310.0130.04020.17
5.5.300.0100.04318.02
5.5.290.0100.08017.90
5.5.280.0170.07720.68
5.5.270.0030.04720.74
5.5.260.0000.07020.86
5.5.250.0070.08720.68
5.5.240.0130.07720.25
5.4.450.0270.05019.26
5.4.440.0230.05019.41
5.4.430.0600.04719.25
5.4.420.0370.05019.09
5.4.410.0330.04719.33
5.4.400.0330.03719.14
5.4.390.0400.05019.09
5.4.380.0400.06018.50
5.4.370.0330.05718.49
5.4.360.0470.05018.56
5.4.350.0400.05018.59
5.4.340.0170.06318.56
5.4.320.0050.03712.45
5.4.310.0080.03512.45
5.4.300.0060.03512.45
5.4.290.0050.03912.45
5.4.280.0050.03612.35
5.4.270.0050.03712.34
5.4.260.0040.03912.35
5.4.250.0060.03712.35
5.4.240.0080.03412.34
5.4.230.0090.03412.34
5.4.220.0070.03512.34
5.4.210.0080.03312.34
5.4.200.0070.03612.34
5.4.190.0060.03512.34
5.4.180.0100.03012.33
5.4.170.0060.03512.35
5.4.160.0060.03412.34
5.4.150.0060.03612.34
5.4.140.0050.03812.02
5.4.130.0060.03512.01
5.4.120.0040.03711.96
5.4.110.0070.03511.96
5.4.100.0090.03211.96
5.4.90.0050.03711.96
5.4.80.0090.03411.96
5.4.70.0070.03411.96
5.4.60.0040.03711.96
5.4.50.0020.03911.96
5.4.40.0080.03211.95
5.4.30.0050.03711.95
5.4.20.0070.03411.94
5.4.10.0090.03111.95
5.4.00.0110.03111.43
5.3.290.0070.03812.80
5.3.280.0080.03612.71
5.3.270.0040.04012.72
5.3.260.0030.04212.72
5.3.250.0050.03712.71
5.3.240.0060.03712.72
5.3.230.0060.03812.70
5.3.220.0050.03812.68
5.3.210.0050.03912.68
5.3.200.0060.04212.68
5.3.190.0090.03412.68
5.3.180.0070.03512.68
5.3.170.0050.03712.67
5.3.160.0030.04012.68
5.3.150.0070.03612.68
5.3.140.0070.03512.66
5.3.130.0070.03812.66
5.3.120.0100.03512.66
5.3.110.0070.03812.66
5.3.100.0030.04012.12
5.3.90.0080.03412.08
5.3.80.0030.04012.07
5.3.70.0050.03712.07
5.3.60.0070.03512.06
5.3.50.0070.03512.00
5.3.40.0080.03412.00
5.3.30.0040.03611.94
5.3.20.0040.03711.71
5.3.10.0080.03111.69
5.3.00.0070.03411.67
5.2.170.0060.0289.18
5.2.160.0040.0299.18
5.2.150.0020.0329.18
5.2.140.0060.0289.17
5.2.130.0060.0279.14
5.2.120.0050.0279.13
5.2.110.0040.0299.13
5.2.100.0070.0259.14
5.2.90.0010.0329.13
5.2.80.0030.0319.13
5.2.70.0060.0289.13
5.2.60.0070.0279.08
5.2.50.0020.0329.05
5.2.40.0060.0279.03
5.2.30.0060.0279.01
5.2.20.0060.0279.00
5.2.10.0030.0308.91
5.2.00.0050.0288.77
5.1.60.0030.0258.06
5.1.50.0040.0248.06
5.1.40.0100.0188.04
5.1.30.0050.0248.39
5.1.20.0010.0298.41
5.1.10.0040.0258.14
5.1.00.0060.0248.13
5.0.50.0030.0206.61
5.0.40.0070.0156.47
5.0.30.0030.0316.28
5.0.20.0030.0196.25
5.0.10.0020.0216.23
5.0.00.0020.0316.22
4.4.90.0020.0164.78
4.4.80.0010.0164.76
4.4.70.0030.0144.75
4.4.60.0040.0144.75
4.4.50.0010.0164.77
4.4.40.0020.0254.71
4.4.30.0020.0154.75
4.4.20.0020.0154.84
4.4.10.0040.0144.85
4.4.00.0040.0234.76
4.3.110.0040.0144.67
4.3.100.0070.0104.67
4.3.90.0060.0114.63
4.3.80.0040.0234.59
4.3.70.0020.0154.63
4.3.60.0040.0174.62
4.3.50.0060.0164.63
4.3.40.0040.0254.54
4.3.30.0040.0143.27
4.3.20.0020.0153.25
4.3.10.0000.0173.21
4.3.00.0130.01316.72

preferences:
39.82 ms | 400 KiB | 5 Q