3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 3 => [ 1 => "harr" ] ]; $alias = & $arr[3][1]; $out = (isset($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)
8.3.40.0110.00318.67
8.3.30.0070.00718.95
8.3.20.0040.00420.05
8.3.10.0020.00523.56
8.3.00.0040.00419.13
8.2.170.0060.00822.96
8.2.160.0110.00420.43
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00422.31
8.2.110.0030.00622.10
8.2.100.0000.01217.85
8.2.90.0030.00619.07
8.2.80.0080.00018.03
8.2.70.0000.01117.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0040.00418.22
8.2.30.0000.00717.99
8.2.20.0020.00517.77
8.2.10.0030.00517.98
8.2.00.0030.00717.60
8.1.270.0090.00023.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.83
8.1.230.0040.00819.00
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.13
8.1.190.0040.00417.50
8.1.180.0050.00318.10
8.1.170.0030.00518.52
8.1.160.0050.00321.94
8.1.150.0040.00418.52
8.1.140.0000.00817.39
8.1.130.0070.00017.81
8.1.120.0030.00717.45
8.1.110.0040.00417.39
8.1.100.0040.00417.39
8.1.90.0000.00717.29
8.1.80.0050.00317.33
8.1.70.0040.00417.38
8.1.60.0080.00017.42
8.1.50.0000.00717.42
8.1.40.0000.00817.43
8.1.30.0000.00817.49
8.1.20.0040.00417.62
8.1.10.0040.00417.50
8.1.00.0030.00517.41
8.0.300.0040.00419.09
8.0.290.0050.00317.18
8.0.280.0000.00718.44
8.0.270.0050.00317.30
8.0.260.0000.00617.24
8.0.250.0030.00316.83
8.0.240.0000.00716.81
8.0.230.0000.00716.85
8.0.220.0050.00316.71
8.0.210.0040.00416.86
8.0.200.0060.00016.77
8.0.190.0000.00716.79
8.0.180.0070.00016.73
8.0.170.0000.00816.75
8.0.160.0000.00716.67
8.0.150.0000.00716.60
8.0.140.0000.00716.77
8.0.130.0000.00713.23
8.0.120.0000.00716.64
8.0.110.0070.00016.86
8.0.100.0030.00516.82
8.0.90.0040.00416.83
8.0.80.0040.01016.86
8.0.70.0040.00416.88
8.0.60.0030.00316.69
8.0.50.0000.00716.85
8.0.30.0080.01017.05
8.0.20.0080.01017.40
8.0.10.0040.00416.98
8.0.00.0060.01216.68
7.4.330.0030.00215.00
7.4.320.0000.00716.48
7.4.300.0000.00616.53
7.4.290.0030.00316.54
7.4.280.0000.00816.37
7.4.270.0050.00316.57
7.4.260.0050.00316.46
7.4.250.0080.00016.41
7.4.240.0020.00516.38
7.4.230.0030.00316.50
7.4.220.0100.01316.48
7.4.210.0080.00716.55
7.4.200.0030.00316.59
7.4.190.0000.00716.65
7.4.160.0080.00816.30
7.4.150.0100.00717.40
7.4.140.0140.00317.86
7.4.130.0090.00716.30
7.4.120.0150.00416.46
7.4.110.0160.00016.32
7.4.100.0070.01016.45
7.4.90.0070.01016.54
7.4.80.0120.00619.39
7.4.70.0050.02016.41
7.4.60.0080.01216.44
7.4.50.0050.00016.38
7.4.40.0040.01122.77
7.4.30.0060.00916.55
7.4.00.0140.00014.57
7.3.330.0020.00413.05
7.3.320.0020.00312.97
7.3.310.0000.00716.26
7.3.300.0070.00016.24
7.3.290.0150.00316.25
7.3.280.0080.00816.27
7.3.270.0130.00417.40
7.3.260.0150.00716.26
7.3.250.0100.01016.35
7.3.240.0130.00316.48
7.3.230.0030.01416.52
7.3.210.0030.01316.43
7.3.200.0120.00619.39
7.3.190.0130.01016.41
7.3.180.0060.01016.45
7.3.170.0090.00616.27
7.3.160.0090.00916.57
7.3.120.0030.01215.07
7.2.330.0100.00616.55
7.2.320.0040.01316.45
7.2.310.0130.00316.74
7.2.300.0100.00716.41
7.2.290.0080.00816.43
7.2.00.0060.01219.50
7.1.200.0090.00015.62
7.1.100.0070.00718.12
7.1.70.0080.00017.07
7.1.60.0170.00719.33
7.1.50.0090.01216.81
7.1.00.0070.07022.58
7.0.200.0060.00616.52
7.0.140.0000.08022.00
7.0.60.0100.08720.07
7.0.50.0030.05717.79
7.0.40.0130.04020.12
7.0.30.0200.04020.09
7.0.20.0230.05720.18
7.0.10.0100.09020.13
7.0.00.0000.05020.08
5.6.280.0130.06321.09
5.6.210.0000.05020.53
5.6.200.0030.08718.13
5.6.190.0130.08020.66
5.6.180.0330.07320.77
5.6.170.0300.05320.55
5.6.160.0130.05320.54
5.6.150.0070.05718.09
5.6.140.0070.07018.14
5.6.130.0030.07718.09
5.6.120.0130.03321.01
5.6.110.0130.04320.98
5.6.100.0030.05021.13
5.6.90.0070.04320.95
5.6.80.0070.03720.43
5.6.70.3530.03320.36
5.5.350.0130.04020.27
5.5.340.0030.08017.88
5.5.330.0030.05320.13
5.5.320.0100.07720.17
5.5.310.0270.07020.20
5.5.300.0030.07717.98
5.5.290.0100.08018.01
5.5.280.0100.08320.89
5.5.270.0130.05020.88
5.5.260.0030.08320.78
5.5.250.0330.06020.68
5.5.240.0270.06320.18
5.4.450.0730.05319.28
5.4.440.1030.05319.63
5.4.430.0070.06019.54
5.4.420.0300.06719.58
5.4.410.0970.05719.14
5.4.400.0100.05019.31
5.4.390.0670.05318.78
5.4.380.0130.06318.61
5.4.370.0330.05318.65
5.4.360.0300.06018.70
5.4.350.0200.05718.53
5.4.340.0170.05318.63
5.4.320.0050.03912.45
5.4.310.0040.04012.45
5.4.300.0050.03812.45
5.4.290.0070.03812.45
5.4.280.0140.05212.32
5.4.270.0120.04912.32
5.4.260.0100.05212.32
5.4.250.0130.05612.32
5.4.240.0150.05012.32
5.4.230.0160.06112.31
5.4.220.0100.04712.31
5.4.210.0160.06512.31
5.4.200.0090.04212.31
5.4.190.0080.03812.31
5.4.180.0070.04012.30
5.4.170.0100.03812.32
5.4.160.0040.04212.32
5.4.150.0110.04912.31
5.4.140.0090.04112.00
5.4.130.0040.04111.98
5.4.120.0130.03211.94
5.4.110.0110.03911.94
5.4.100.0090.03611.93
5.4.90.0100.03711.94
5.4.80.0100.03811.94
5.4.70.0080.03711.93
5.4.60.0100.03411.93
5.4.50.0140.03511.93
5.4.40.0080.03611.92
5.4.30.0100.04711.92
5.4.20.0170.07611.92
5.4.10.0100.05411.92
5.4.00.0120.05311.41
5.3.290.0070.04412.80
5.3.280.0150.06312.71
5.3.270.0120.06112.72
5.3.260.0110.05712.72
5.3.250.0250.08512.72
5.3.240.0250.11212.72
5.3.230.0190.05112.71
5.3.220.0220.05912.68
5.3.210.0190.06912.68
5.3.200.0210.07012.68
5.3.190.0160.04912.68
5.3.180.0230.06912.68
5.3.170.0180.07412.67
5.3.160.0180.09112.67
5.3.150.0140.05712.67
5.3.140.0250.09312.66
5.3.130.0140.05012.66
5.3.120.0120.06412.65
5.3.110.0250.08312.65
5.3.100.0110.05112.12
5.3.90.0170.07212.09
5.3.80.0120.06212.07
5.3.70.0180.04312.08
5.3.60.0130.05812.07
5.3.50.0110.06312.00
5.3.40.0100.05912.00
5.3.30.0090.04411.94
5.3.20.0060.05011.70
5.3.10.0090.04711.67
5.3.00.0090.05611.66
5.2.170.0050.0459.15
5.2.160.0080.0509.15
5.2.150.0180.0639.15
5.2.140.0150.0539.14
5.2.130.0110.0489.11
5.2.120.0060.0409.11
5.2.110.0070.0369.12
5.2.100.0090.0369.11
5.2.90.0090.0329.11
5.2.80.0110.0409.11
5.2.70.0060.0429.11
5.2.60.0090.0369.06
5.2.50.0090.0389.03
5.2.40.0140.0319.00
5.2.30.0080.0398.98
5.2.20.0100.0348.98
5.2.10.0100.0338.90
5.2.00.0080.0388.76
5.1.60.0070.0428.04
5.1.50.0110.0348.04
5.1.40.0100.0388.03
5.1.30.0090.0358.38
5.1.20.0090.0408.40
5.1.10.0170.0518.12
5.1.00.0080.0358.13
5.0.50.0050.0426.60
5.0.40.0040.0316.46
5.0.30.0060.0336.27
5.0.20.0060.0186.24
5.0.10.0030.0226.22
5.0.00.0050.0316.21
4.4.90.0040.0154.78
4.4.80.0040.0154.76
4.4.70.0030.0164.75
4.4.60.0060.0134.75
4.4.50.0030.0174.77
4.4.40.0060.0234.71
4.4.30.0050.0154.76
4.4.20.0040.0194.84
4.4.10.0020.0184.85
4.4.00.0090.0214.76
4.3.110.0070.0194.66
4.3.100.0040.0164.66
4.3.90.0040.0154.64
4.3.80.0020.0334.58
4.3.70.0080.0414.63
4.3.60.0160.0274.62
4.3.50.0100.0214.63
4.3.40.0040.0324.54
4.3.30.0040.0253.27
4.3.20.0080.0383.25
4.3.10.0050.0483.22
4.3.00.0300.02010.30

preferences:
41.34 ms | 400 KiB | 5 Q