3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'alpha' => 'aaa', 'beta' => 'bbb' ]; $alphaAndGamma = $array; unset($alphaAndGamma['alpha']); var_dump($alphaAndGamma);

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)
8.3.60.0170.00316.63
8.3.50.0090.00722.03
8.3.40.0090.00618.75
8.3.30.0030.01018.70
8.3.20.0000.00720.21
8.3.10.0030.00523.54
8.3.00.0040.00419.13
8.2.180.0070.00716.38
8.2.170.0140.00722.96
8.2.160.0040.01120.47
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00022.08
8.2.110.0120.00021.03
8.2.100.0080.00417.91
8.2.90.0000.00817.78
8.2.80.0000.00817.97
8.2.70.0030.00617.38
8.2.60.0050.00317.80
8.2.50.0070.00318.07
8.2.40.0040.00419.65
8.2.30.0040.00418.11
8.2.20.0040.00417.67
8.2.10.0040.00418.04
8.2.00.0050.00517.72
8.1.280.0100.00625.92
8.1.270.0080.00022.24
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00622.48
8.1.230.0000.01120.91
8.1.220.0040.00417.76
8.1.210.0040.00418.77
8.1.200.0000.00917.22
8.1.190.0050.00317.41
8.1.180.0030.00518.10
8.1.170.0000.00818.50
8.1.160.0070.00021.98
8.1.150.0000.00718.47
8.1.140.0040.00417.43
8.1.130.0000.00717.83
8.1.120.0070.00017.36
8.1.110.0050.00217.38
8.1.100.0000.00717.35
8.1.90.0000.00717.36
8.1.80.0070.00017.29
8.1.70.0000.00717.34
8.1.60.0050.00317.46
8.1.50.0030.00517.50
8.1.40.0040.00417.46
8.1.30.0080.00017.53
8.1.20.0040.00417.53
8.1.10.0050.00317.43
8.1.00.0030.00617.31
8.0.300.0040.00419.94
8.0.290.0040.00416.93
8.0.280.0080.00018.30
8.0.270.0030.00317.05
8.0.260.0030.00317.09
8.0.250.0030.00316.92
8.0.240.0080.00016.77
8.0.230.0070.00016.86
8.0.220.0070.00016.84
8.0.210.0030.00316.82
8.0.200.0030.00316.79
8.0.190.0050.00516.89
8.0.180.0000.00816.81
8.0.170.0030.00516.79
8.0.160.0040.00416.89
8.0.150.0060.00316.73
8.0.140.0070.00016.73
8.0.130.0000.00613.31
8.0.120.0040.00416.80
8.0.110.0050.00216.79
8.0.100.0040.00416.61
8.0.90.0000.00716.78
8.0.80.0060.00916.82
8.0.70.0040.00416.79
8.0.60.0000.00716.70
8.0.50.0040.00416.86
8.0.30.0100.00817.06
8.0.20.0110.00817.40
8.0.10.0030.00616.87
8.0.00.0130.00616.70
7.4.330.0000.00515.07
7.4.320.0030.00316.59
7.4.300.0070.00016.50
7.4.290.0030.00316.40
7.4.280.0070.00316.59
7.4.270.0000.00716.54
7.4.260.0000.00716.49
7.4.250.0080.00016.45
7.4.240.0030.00316.51
7.4.230.0060.00016.57
7.4.220.0030.01316.41
7.4.210.0110.00516.53
7.4.200.0050.00316.59
7.4.190.0030.00316.53
7.4.160.0120.00816.43
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0080.01316.29
7.4.120.0050.01116.56
7.4.110.0060.01216.37
7.4.100.0150.00616.32
7.4.90.0090.00916.44
7.4.80.0090.00919.39
7.4.70.0120.00416.41
7.4.60.0070.01016.40
7.4.50.0030.00616.49
7.4.40.0040.01122.77
7.4.30.0120.00416.36
7.4.00.0060.01214.75
7.3.330.0000.00513.11
7.3.320.0020.00212.98
7.3.310.0000.00716.25
7.3.300.0060.00016.24
7.3.290.0100.00316.31
7.3.280.0160.00316.22
7.3.270.0090.01317.40
7.3.260.0060.01016.57
7.3.250.0090.01216.34
7.3.240.0070.01116.47
7.3.230.0140.00716.46
7.3.210.0080.00816.38
7.3.200.0060.01519.39
7.3.190.0110.01216.23
7.3.180.0090.00616.39
7.3.170.0040.01816.38
7.3.160.0060.01016.31
7.3.120.0000.01714.68
7.2.330.0110.00716.52
7.2.320.0030.01916.31
7.2.310.0110.01116.46
7.2.300.0090.00616.57
7.2.290.0120.00916.60
7.2.60.0060.00916.59
7.1.200.0030.01215.79
7.1.70.0060.00616.79
7.1.60.0030.01419.46
7.1.50.0040.01817.02
7.1.00.0030.09322.41
7.0.200.0070.00316.81
7.0.140.0070.07022.12
7.0.60.0130.07720.02
7.0.50.0030.05717.86
7.0.40.0070.09020.40
7.0.30.0230.05020.30
7.0.20.0370.03320.19
7.0.10.0030.04020.08
7.0.00.0170.07320.16
5.6.210.0100.03720.50
5.6.200.0130.07718.23
5.6.190.0100.07320.63
5.6.180.0130.04720.40
5.6.170.0270.05720.33
5.6.160.0200.03720.41
5.6.150.0070.05018.23
5.6.140.0100.04018.11
5.6.130.0130.08018.15
5.6.120.0100.08021.02
5.6.110.0130.07720.97
5.6.100.0030.04021.07
5.6.90.0070.08021.07
5.6.80.0030.06720.50
5.6.70.4400.04320.52
5.5.350.0070.08320.36
5.5.340.0070.07717.99
5.5.330.0100.06020.36
5.5.320.0330.04720.50
5.5.310.0270.06020.29
5.5.300.0070.06317.89
5.5.290.0000.05717.91
5.5.280.0130.03720.87
5.5.270.0030.08020.96
5.5.260.0100.08320.86
5.5.250.0030.07320.69
5.5.240.0300.06320.25
5.4.450.0900.05719.64
5.4.440.0230.06019.13
5.4.430.0870.05019.24
5.4.420.0670.00019.45
5.4.410.0030.06718.96
5.4.400.0100.06018.51
5.4.390.0170.05718.65
5.4.380.0230.05318.49
5.4.370.0100.04318.68
5.4.360.0170.04318.64
5.4.350.0120.04211.97
5.4.340.0050.03611.97
5.4.320.0070.03712.46
5.4.310.0080.04612.45
5.4.300.0060.04512.45
5.4.290.0050.04112.45
5.4.280.0110.04912.32
5.4.270.0080.04312.32
5.4.260.0090.04512.32
5.4.250.0080.04212.32
5.4.240.0080.05512.32
5.4.230.0110.03912.31
5.4.220.0120.04712.31
5.4.210.0090.03612.31
5.4.200.0120.05012.31
5.4.190.0100.05212.31
5.4.180.0100.05212.31
5.4.170.0090.03912.32
5.4.160.0090.03812.31
5.4.150.0080.03712.31
5.4.140.0080.03912.00
5.4.130.0140.04111.98
5.4.120.0110.04711.94
5.4.110.0090.05311.93
5.4.100.0100.03811.93
5.4.90.0090.03811.94
5.4.80.0100.05011.94
5.4.70.0090.04811.93
5.4.60.0130.03911.93
5.4.50.0070.03711.93
5.4.40.0080.04211.92
5.4.30.0080.04011.92
5.4.20.0070.04411.92
5.4.10.0100.03411.92
5.4.00.0040.03911.41
5.3.290.0080.05112.80
5.3.280.0090.03612.71
5.3.270.0080.04012.72
5.3.260.0090.04212.72
5.3.250.0120.03612.72
5.3.240.0090.05412.72
5.3.230.0070.03912.71
5.3.220.0090.03912.68
5.3.210.0080.04112.68
5.3.200.0060.03712.68
5.3.190.0120.04612.68
5.3.180.0030.04212.68
5.3.170.0040.04012.67
5.3.160.0070.03712.68
5.3.150.0090.03612.68
5.3.140.0080.03612.66
5.3.130.0070.04012.66
5.3.120.0040.04412.66
5.3.110.0110.03812.66
5.3.100.0070.04112.12
5.3.90.0070.03812.08
5.3.80.0080.04712.07
5.3.70.0120.03612.07
5.3.60.0060.04312.07
5.3.50.0130.04412.00
5.3.40.0140.04312.00
5.3.30.0080.03511.94
5.3.20.0090.03411.70
5.3.10.0050.03811.67
5.3.00.0070.03611.66
5.2.170.0070.0409.15
5.2.160.0040.0339.15
5.2.150.0080.0319.15
5.2.140.0060.0369.15
5.2.130.0070.0349.11
5.2.120.0060.0329.11
5.2.110.0060.0339.12
5.2.100.0100.0319.11
5.2.90.0060.0309.11
5.2.80.0060.0319.11
5.2.70.0030.0349.11
5.2.60.0080.0329.06
5.2.50.0070.0309.03
5.2.40.0060.0299.00
5.2.30.0060.0308.98
5.2.20.0070.0398.98
5.2.10.0090.0368.90
5.2.00.0080.0408.76
5.1.60.0050.0348.04
5.1.50.0080.0358.04
5.1.40.0080.0318.03
5.1.30.0060.0298.38
5.1.20.0050.0288.39
5.1.10.0050.0298.13
5.1.00.0080.0268.12
5.0.50.0050.0246.60
5.0.40.0060.0226.46
5.0.30.0050.0346.27
5.0.20.0070.0206.25
5.0.10.0020.0256.21
5.0.00.0040.0346.21
4.4.90.0070.0294.78
4.4.80.0040.0214.75
4.4.70.0070.0224.76
4.4.60.0040.0214.75
4.4.50.0030.0174.77
4.4.40.0040.0264.71
4.4.30.0030.0184.76
4.4.20.0050.0144.84
4.4.10.0040.0154.85
4.4.00.0050.0244.76
4.3.110.0010.0184.67
4.3.100.0030.0154.67
4.3.90.0030.0164.63
4.3.80.0040.0244.58
4.3.70.0050.0194.63
4.3.60.0050.0164.63
4.3.50.0030.0174.63
4.3.40.0080.0314.54
4.3.30.0030.0233.27
4.3.20.0030.0223.25
4.3.10.0050.0203.22
4.3.00.0130.0206.54

preferences:
43.19 ms | 401 KiB | 5 Q