3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('1','3'); echo count($a); $c = count($a) - 1; echo $a[$c];

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)
8.3.60.0160.00616.49
8.3.50.0120.00722.93
8.3.40.0110.01118.72
8.3.30.0070.00719.08
8.3.20.0030.00620.16
8.3.10.0000.00823.71
8.3.00.0060.00319.38
8.2.180.0060.00916.63
8.2.170.0090.00622.96
8.2.160.0100.00320.20
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0090.00026.16
8.2.120.0030.00619.77
8.2.110.0090.00019.32
8.2.100.0080.00317.84
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0080.00017.63
8.2.60.0070.00417.80
8.2.50.0060.00318.07
8.2.40.0000.00818.34
8.2.30.0040.00418.13
8.2.20.0050.00217.75
8.2.10.0060.00318.13
8.2.00.0000.00817.61
8.1.280.0120.00325.92
8.1.270.0030.00623.86
8.1.260.0070.00026.35
8.1.250.0060.00328.09
8.1.240.0000.00922.14
8.1.230.0040.00819.04
8.1.220.0060.00317.76
8.1.210.0050.00318.77
8.1.200.0040.00417.35
8.1.190.0040.00417.10
8.1.180.0080.00018.10
8.1.170.0040.00418.59
8.1.160.0040.00422.00
8.1.150.0000.00718.75
8.1.140.0000.00717.43
8.1.130.0040.00417.82
8.1.120.0040.00417.36
8.1.110.0050.00317.49
8.1.100.0030.00317.49
8.1.90.0070.00017.36
8.1.80.0030.00317.38
8.1.70.0040.00417.45
8.1.60.0060.00317.60
8.1.50.0050.00317.50
8.1.40.0030.00517.50
8.1.30.0060.00317.49
8.1.20.0030.00617.61
8.1.10.0070.00017.56
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.35
8.0.270.0080.00017.23
8.0.260.0030.00317.25
8.0.250.0030.00316.96
8.0.240.0070.00016.94
8.0.230.0000.00716.75
8.0.220.0030.00316.85
8.0.210.0000.00716.70
8.0.200.0070.00016.84
8.0.190.0050.00216.91
8.0.180.0040.00416.75
8.0.170.0040.00416.88
8.0.160.0070.00016.77
8.0.150.0040.00416.71
8.0.140.0070.00316.74
8.0.130.0050.00013.34
8.0.120.0040.00416.86
8.0.110.0050.00216.94
8.0.100.0070.00016.76
8.0.90.0000.00716.67
8.0.80.0060.00916.91
8.0.70.0000.00816.88
8.0.60.0040.00416.73
8.0.50.0040.00416.91
8.0.30.0080.01317.36
8.0.20.0060.01717.40
8.0.10.0000.00817.11
8.0.00.0080.01216.82
7.4.330.0030.00315.00
7.4.320.0000.00616.52
7.4.300.0000.00616.58
7.4.290.0030.00316.64
7.4.280.0040.00416.50
7.4.270.0000.00716.51
7.4.260.0000.00716.49
7.4.250.0050.00216.47
7.4.240.0040.00416.58
7.4.230.0040.00416.50
7.4.220.0150.00316.59
7.4.210.0060.00916.58
7.4.200.0070.00016.42
7.4.160.0100.00616.64
7.4.150.0100.00717.40
7.4.140.0160.00517.86
7.4.130.0070.01116.57
7.4.120.0090.00816.60
7.4.110.0070.01016.58
7.4.100.0080.01116.31
7.4.90.0130.00316.45
7.4.80.0030.01919.39
7.4.70.0000.01716.48
7.4.60.0140.00316.50
7.4.50.0070.00316.26
7.4.40.0090.00916.67
7.4.30.0090.01216.54
7.4.00.0030.00615.00
7.3.330.0000.00513.00
7.3.320.0000.00612.98
7.3.310.0050.00216.16
7.3.300.0030.00316.29
7.3.290.0100.00316.25
7.3.280.0090.01016.30
7.3.270.0160.00317.40
7.3.260.0080.00816.49
7.3.240.0170.00016.54
7.3.230.0040.01316.54
7.3.210.0120.00916.44
7.3.200.0130.00619.39
7.3.190.0070.01116.28
7.3.180.0060.00916.51
7.3.170.0100.00616.45
7.3.160.0060.00916.32
7.2.330.0090.00916.50
7.2.320.0160.00916.67
7.2.310.0100.00716.64
7.2.300.0130.00316.60
7.2.290.0060.01016.82
7.2.00.0030.00919.14
7.1.100.0000.01417.94
7.1.70.0000.00917.28
7.1.60.0100.01419.40
7.1.50.0140.01016.96
7.1.00.0030.07722.48
7.0.200.0000.00716.57
7.0.140.0000.07722.15
7.0.60.0130.03719.82
7.0.50.0000.06017.66
7.0.40.0030.05020.05
7.0.30.0300.03720.16
7.0.20.0200.07720.16
7.0.10.0030.04320.01
7.0.00.0100.05720.18
5.6.280.0070.07021.09
5.6.210.0100.06720.69
5.6.200.0070.06018.21
5.6.190.0030.05320.43
5.6.180.0330.07320.67
5.6.170.0330.06720.54
5.6.160.0100.07020.38
5.6.150.0170.06718.21
5.6.140.0100.07318.22
5.6.130.0000.04318.18
5.6.120.0030.04720.98
5.6.110.0170.06720.96
5.6.100.0130.06720.97
5.6.90.0070.07721.02
5.6.80.0130.06720.36
5.5.350.0170.05720.34
5.5.340.0200.06717.98
5.5.330.0100.08020.25
5.5.320.0200.08720.32
5.5.310.0230.04320.14
5.5.300.0000.08317.98
5.5.290.0100.07717.91
5.5.280.0100.05020.87
5.5.270.0200.07320.72
5.5.260.0000.04720.85
5.5.250.0100.06020.77
5.5.240.0000.07720.36
5.4.450.0230.04719.41
5.4.440.0230.05319.25
5.4.430.0130.04719.40
5.4.420.0270.04719.27
5.4.410.0300.04019.25
5.4.400.0400.04018.92
5.4.390.0170.03719.22
5.4.380.0270.06018.74
5.4.370.0370.05718.56
5.4.360.0370.05018.62
5.4.350.0370.05718.67
5.4.340.0300.05718.71
5.4.320.0070.03912.45
5.4.310.0060.03612.45
5.4.300.0030.03812.45
5.4.290.0090.04512.45
5.4.280.0070.03712.35
5.4.270.0060.03412.35
5.4.260.0070.03512.35
5.4.250.0090.03612.35
5.4.240.0050.04012.34
5.4.230.0090.03712.34
5.4.220.0050.03512.34
5.4.210.0030.04012.34
5.4.200.0040.04612.34
5.4.190.0040.03612.34
5.4.180.0030.03712.33
5.4.170.0060.03412.34
5.4.160.0090.03312.34
5.4.150.0070.04412.34
5.4.140.0060.03612.02
5.4.130.0030.03712.01
5.4.120.0050.03411.96
5.4.110.0070.04111.97
5.4.100.0060.03911.96
5.4.90.0080.03411.96
5.4.80.0060.03511.96
5.4.70.0050.03511.96
5.4.60.0080.03311.96
5.4.50.0050.03511.96
5.4.40.0070.03911.95
5.4.30.0060.03511.95
5.4.20.0050.03611.95
5.4.10.0050.03411.95
5.4.00.0040.03611.43
5.3.290.0030.04312.80
5.3.280.0030.04212.71
5.3.270.0100.03412.73
5.3.260.0060.03912.72
5.3.250.0040.03812.72
5.3.240.0060.03612.72
5.3.230.0040.03912.71
5.3.220.0050.03712.68
5.3.210.0050.04012.68
5.3.200.0070.03612.68
5.3.190.0070.03612.68
5.3.180.0040.03712.67
5.3.170.0070.03512.67
5.3.160.0060.03512.67
5.3.150.0050.03712.67
5.3.140.0060.03712.66
5.3.130.0070.04012.66
5.3.120.0050.04712.66
5.3.110.0080.03712.66
5.3.100.0050.04012.12
5.3.90.0070.04512.08
5.3.80.0060.03912.07
5.3.70.0070.03812.08
5.3.60.0070.03612.07
5.3.50.0060.03712.00
5.3.40.0040.03812.00
5.3.30.0070.03411.94
5.3.20.0060.03511.73
5.3.10.0050.03511.69
5.3.00.0060.03511.68
5.2.170.0090.0289.18
5.2.160.0030.0309.18
5.2.150.0030.0319.18
5.2.140.0030.0319.17
5.2.130.0030.0309.13
5.2.120.0050.0279.13
5.2.110.0040.0299.14
5.2.100.0030.0309.14
5.2.90.0030.0309.14
5.2.80.0070.0279.13
5.2.70.0050.0319.13
5.2.60.0040.0299.09
5.2.50.0050.0289.06
5.2.40.0050.0269.04
5.2.30.0050.0389.01
5.2.20.0040.0288.99
5.2.10.0040.0278.93
5.2.00.0030.0308.79
5.1.60.0050.0228.07
5.1.50.0040.0248.07
5.1.40.0050.0238.05
5.1.30.0020.0288.40
5.1.20.0080.0348.43
5.1.10.0040.0268.15
5.1.00.0060.0258.15
5.0.50.0050.0226.63
5.0.40.0060.0176.49
5.0.30.0030.0316.30
5.0.20.0060.0206.27
5.0.10.0040.0246.25
5.0.00.0020.0356.24
4.4.90.0050.0154.78
4.4.80.0020.0154.75
4.4.70.0020.0164.76
4.4.60.0040.0204.75
4.4.50.0030.0154.77
4.4.40.0040.0304.71
4.4.30.0030.0214.76
4.4.20.0030.0194.85
4.4.10.0040.0184.84
4.4.00.0040.0274.76
4.3.110.0000.0214.67
4.3.100.0040.0184.66
4.3.90.0030.0164.63
4.3.80.0000.0264.58
4.3.70.0020.0174.63
4.3.60.0030.0154.63
4.3.50.0020.0164.63
4.3.40.0060.0254.54
4.3.30.0020.0173.30
4.3.20.0020.0153.27
4.3.10.0010.0163.23
4.3.00.0030.01715.96

preferences:
48.7 ms | 400 KiB | 5 Q