3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 3 => [ 1 => "harr" ] ]; $alias = & $arr[3][2]; $out = (isset($alias)) ? $alias : "nope"; echo $out;

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)
8.3.60.0110.00418.17
8.3.50.0150.00921.97
8.3.40.0040.01118.71
8.3.30.0040.01118.92
8.3.20.0000.00720.24
8.3.10.0080.00023.53
8.3.00.0000.00819.38
8.2.180.0130.00618.29
8.2.170.0070.00722.96
8.2.160.0100.00320.43
8.2.150.0050.00324.18
8.2.140.0090.00924.66
8.2.130.0050.00326.16
8.2.120.0000.00822.08
8.2.110.0090.00022.20
8.2.100.0040.00817.91
8.2.90.0040.00419.16
8.2.80.0030.00517.97
8.2.70.0050.00517.38
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0090.00018.03
8.2.30.0000.00818.17
8.2.20.0040.00417.77
8.2.10.0040.00417.99
8.2.00.0030.00617.71
8.1.280.0070.00725.92
8.1.270.0040.00422.06
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.84
8.1.230.0110.00019.01
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0030.00617.10
8.1.190.0000.00817.30
8.1.180.0040.00418.10
8.1.170.0060.00318.64
8.1.160.0040.00421.99
8.1.150.0040.00418.57
8.1.140.0070.00017.36
8.1.130.0060.00017.73
8.1.120.0060.00617.39
8.1.110.0040.00417.39
8.1.100.0000.00817.27
8.1.90.0030.00317.37
8.1.80.0030.00317.32
8.1.70.0070.00017.29
8.1.60.0050.00317.55
8.1.50.0040.00417.35
8.1.40.0000.00817.46
8.1.30.0000.00717.55
8.1.20.0000.00817.60
8.1.10.0040.00417.48
8.1.00.0050.00317.40
8.0.300.0040.00418.93
8.0.290.0000.00817.04
8.0.280.0030.00318.43
8.0.270.0070.00017.16
8.0.260.0000.00617.15
8.0.250.0000.00716.92
8.0.240.0070.00016.91
8.0.230.0000.00716.88
8.0.220.0000.00716.82
8.0.210.0040.00416.84
8.0.200.0000.00616.88
8.0.190.0030.00416.79
8.0.180.0000.00716.77
8.0.170.0060.00316.88
8.0.160.0040.00416.66
8.0.150.0040.00416.69
8.0.140.0050.00216.73
8.0.130.0030.00613.25
8.0.120.0050.00216.86
8.0.110.0040.00416.82
8.0.100.0070.00016.59
8.0.90.0000.00716.82
8.0.80.0060.00916.80
8.0.70.0000.00716.62
8.0.60.0000.00716.83
8.0.50.0070.00016.68
8.0.30.0080.01017.06
8.0.20.0070.01217.40
8.0.10.0040.00416.88
8.0.00.0110.00716.81
7.4.330.0000.00615.00
7.4.320.0070.00016.40
7.4.300.0000.00616.33
7.4.290.0000.00716.32
7.4.280.0000.00716.33
7.4.270.0040.00416.45
7.4.260.0030.00316.49
7.4.250.0040.00416.38
7.4.240.0030.00316.46
7.4.230.0000.00716.60
7.4.220.0000.01716.51
7.4.210.0100.00516.42
7.4.200.0070.00016.43
7.4.190.0070.00016.38
7.4.160.0000.01716.23
7.4.150.0150.00317.40
7.4.140.0120.00617.86
7.4.130.0070.01116.38
7.4.120.0150.00116.48
7.4.110.0110.00616.53
7.4.100.0070.01516.49
7.4.90.0160.00716.61
7.4.80.0060.01219.39
7.4.70.0070.01016.43
7.4.60.0160.00016.63
7.4.50.0050.00016.38
7.4.40.0080.00422.77
7.4.30.0130.00316.64
7.4.00.0060.01015.01
7.3.330.0040.00413.09
7.3.320.0050.00013.12
7.3.310.0040.00416.26
7.3.300.0030.00316.26
7.3.290.0100.00616.25
7.3.280.0090.00816.25
7.3.270.0060.01017.40
7.3.260.0110.00716.58
7.3.250.0150.00316.28
7.3.240.0130.00316.60
7.3.230.0130.00316.56
7.3.210.0060.00916.48
7.3.200.0130.01019.39
7.3.190.0100.01316.43
7.3.180.0150.00016.37
7.3.170.0060.00916.27
7.3.160.0100.00716.53
7.3.120.0100.00714.74
7.2.330.0120.00616.31
7.2.320.0120.00616.62
7.2.310.0030.01316.64
7.2.300.0090.00916.53
7.2.290.0060.00916.84
7.2.60.0090.00316.80
7.1.200.0000.01015.57
7.1.100.0030.00717.81
7.1.70.0000.00917.07
7.1.60.0150.00919.33
7.1.50.0040.01616.77
7.1.00.0070.06322.30
7.0.200.0030.00616.66
7.0.140.0100.06722.15
7.0.60.0000.04320.03
7.0.50.0070.05017.82
7.0.40.0200.07020.16
7.0.30.0430.07320.00
7.0.20.0200.04020.28
7.0.10.0100.08320.04
7.0.00.0100.06020.17
5.6.280.0000.07720.90
5.6.210.0100.07720.72
5.6.200.0170.07018.20
5.6.190.0070.05020.54
5.6.180.0330.07020.66
5.6.170.0130.04720.46
5.6.160.0030.07020.32
5.6.150.0070.07318.15
5.6.140.0030.08718.17
5.6.130.0100.08018.11
5.6.120.0070.08020.98
5.6.110.0070.08720.95
5.6.100.0100.07020.96
5.6.90.0100.04721.09
5.6.80.0130.06720.27
5.6.70.4500.04720.46
5.5.350.0100.05720.31
5.5.340.0100.07717.89
5.5.330.0000.08020.15
5.5.320.0070.06320.21
5.5.310.0130.04320.33
5.5.300.0070.08018.02
5.5.290.0070.06317.98
5.5.280.0100.07720.73
5.5.270.0070.08320.79
5.5.260.0100.06720.67
5.5.250.0070.08020.57
5.5.240.0230.06020.34
5.4.450.0730.06019.48
5.4.440.0770.06019.27
5.4.430.0530.06719.15
5.4.420.1030.06719.27
5.4.410.0100.06719.00
5.4.400.0700.05319.00
5.4.390.0830.06019.12
5.4.380.0300.06018.68
5.4.370.0230.05318.72
5.4.360.0300.07018.72
5.4.350.0230.07318.79
5.4.340.0330.05318.59
5.4.320.0080.04512.45
5.4.310.0060.03812.45
5.4.300.0060.03612.45
5.4.290.0070.03712.45
5.4.280.0070.03612.32
5.4.270.0080.03512.32
5.4.260.0070.04112.32
5.4.250.0170.06712.32
5.4.240.0100.06212.32
5.4.230.0190.10812.31
5.4.220.0130.07112.31
5.4.210.0100.06712.31
5.4.200.0130.05112.31
5.4.190.0130.05412.30
5.4.180.0120.05812.30
5.4.170.0140.05312.32
5.4.160.0180.04612.32
5.4.150.0110.06312.31
5.4.140.0100.05711.99
5.4.130.0080.05311.98
5.4.120.0090.06411.94
5.4.110.0090.05711.93
5.4.100.0100.05611.93
5.4.90.0100.09211.94
5.4.80.0060.05711.94
5.4.70.0140.07411.93
5.4.60.0150.08511.93
5.4.50.0120.05311.93
5.4.40.0090.06111.92
5.4.30.0140.04511.92
5.4.20.0090.05611.92
5.4.10.0150.04511.92
5.4.00.0090.03911.41
5.3.290.0090.04012.80
5.3.280.0200.07912.71
5.3.270.0130.05812.72
5.3.260.0100.05312.72
5.3.250.0130.06612.72
5.3.240.0180.09212.72
5.3.230.0150.05612.71
5.3.220.0200.06612.68
5.3.210.0160.07012.68
5.3.200.0100.07312.68
5.3.190.0090.05012.68
5.3.180.0080.07512.68
5.3.170.0240.07912.67
5.3.160.0220.13212.68
5.3.150.0300.10412.67
5.3.140.0150.11512.66
5.3.130.0110.07412.66
5.3.120.0150.06312.65
5.3.110.0120.05612.66
5.3.100.0210.07212.12
5.3.90.0130.05912.09
5.3.80.0150.06612.07
5.3.70.0130.07012.07
5.3.60.0100.06912.06
5.3.50.0140.06212.00
5.3.40.0250.07212.00
5.3.30.0140.08511.94
5.3.20.0200.08311.70
5.3.10.0090.03811.67
5.3.00.0070.03911.66
5.2.170.0120.0279.15
5.2.160.0060.0369.15
5.2.150.0070.0339.15
5.2.140.0040.0399.14
5.2.130.0100.0709.11
5.2.120.0080.0429.11
5.2.110.0040.0439.11
5.2.100.0070.0409.12
5.2.90.0090.0409.11
5.2.80.0140.0569.11
5.2.70.0150.0409.11
5.2.60.0110.0629.06
5.2.50.0050.0459.03
5.2.40.0060.0449.00
5.2.30.0120.0318.98
5.2.20.0100.0438.97
5.2.10.0080.0378.90
5.2.00.0090.0638.76
5.1.60.0060.0268.05
5.1.50.0060.0348.04
5.1.40.0080.0508.03
5.1.30.0080.0348.38
5.1.20.0100.0488.40
5.1.10.0110.0308.12
5.1.00.0110.0328.13
5.0.50.0170.0406.60
5.0.40.0070.0256.46
5.0.30.0050.0406.27
5.0.20.0040.0276.25
5.0.10.0200.0576.21
5.0.00.0110.0486.21
4.4.90.0040.0154.78
4.4.80.0040.0184.75
4.4.70.0060.0254.75
4.4.60.0060.0184.76
4.4.50.0070.0154.77
4.4.40.0080.0224.70
4.4.30.0070.0134.76
4.4.20.0040.0164.84
4.4.10.0040.0164.85
4.4.00.0040.0254.76
4.3.110.0040.0204.67
4.3.100.0050.0194.66
4.3.90.0050.0194.64
4.3.80.0030.0274.58
4.3.70.0020.0174.63
4.3.60.0040.0204.63
4.3.50.0050.0154.63
4.3.40.0050.0234.53
4.3.30.0030.0203.27
4.3.20.0030.0183.25
4.3.10.0040.0173.21
4.3.00.0000.02010.30

preferences:
39.97 ms | 401 KiB | 5 Q