3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(array(1),2,3); $b = array(array(1),array(2),3); $f = array(array(2),array(3),4); $c = array(array_merge($a, $b, $f)); $d = array_unique($c); var_dump($d);

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)
8.3.60.0040.01116.38
8.3.50.0100.00622.04
8.3.40.0070.00718.71
8.3.30.0070.00719.09
8.3.20.0000.00720.25
8.3.10.0030.00620.52
8.3.00.0060.00319.13
8.2.180.0070.00716.50
8.2.170.0110.00422.96
8.2.160.0030.01320.46
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00320.87
8.2.110.0090.00020.47
8.2.100.0040.00717.91
8.2.90.0020.00519.05
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0080.00017.80
8.2.50.0060.00618.07
8.2.40.0060.00318.16
8.2.30.0060.00319.49
8.2.20.0050.00217.60
8.2.10.0040.00418.10
8.2.00.0000.00817.64
8.1.280.0070.01125.92
8.1.270.0080.00023.71
8.1.260.0100.00026.35
8.1.250.0000.00828.09
8.1.240.0070.00323.83
8.1.230.0100.00019.10
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0060.00317.23
8.1.180.0040.00418.10
8.1.170.0000.00818.62
8.1.160.0070.00021.99
8.1.150.0020.00518.80
8.1.140.0000.00717.35
8.1.130.0050.00317.82
8.1.120.0040.00417.52
8.1.110.0030.00517.34
8.1.100.0050.00217.44
8.1.90.0030.00317.31
8.1.80.0040.00417.35
8.1.70.0000.00717.46
8.1.60.0030.00517.54
8.1.50.0000.00917.53
8.1.40.0040.00417.45
8.1.30.0060.00317.61
8.1.20.0040.00417.54
8.1.10.0030.00517.43
8.1.00.0040.00417.33
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0000.00718.44
8.0.270.0030.00317.13
8.0.260.0000.00617.21
8.0.250.0030.00316.85
8.0.240.0030.00316.96
8.0.230.0070.00016.99
8.0.220.0030.00316.91
8.0.210.0040.00416.87
8.0.200.0000.00716.95
8.0.190.0000.00716.94
8.0.180.0030.00316.80
8.0.170.0030.00516.77
8.0.160.0040.00416.91
8.0.150.0000.00816.83
8.0.140.0000.00916.91
8.0.130.0050.00313.27
8.0.120.0030.00516.86
8.0.110.0040.00416.79
8.0.100.0070.00016.71
8.0.90.0020.00516.88
8.0.80.0110.00716.88
8.0.70.0030.00416.76
8.0.60.0070.00016.71
8.0.50.0050.00216.83
8.0.30.0110.01317.19
8.0.20.0170.00517.40
8.0.10.0050.00216.86
8.0.00.0130.00416.74
7.4.330.0020.00215.07
7.4.320.0070.00016.45
7.4.300.0040.00416.58
7.4.290.0000.00716.36
7.4.280.0060.00616.59
7.4.270.0000.00816.61
7.4.260.0040.00416.41
7.4.250.0040.00416.47
7.4.240.0030.00316.57
7.4.230.0000.00716.61
7.4.220.0120.00616.45
7.4.210.0090.00616.42
7.4.200.0030.00416.68
7.4.160.0120.00416.55
7.4.150.0110.00717.40
7.4.140.0110.01117.86
7.4.130.0040.01216.49
7.4.120.0110.00716.50
7.4.110.0150.01016.43
7.4.100.0110.00716.50
7.4.90.0100.00716.45
7.4.80.0090.00919.39
7.4.70.0060.01116.52
7.4.60.0120.00616.38
7.4.50.0040.00416.35
7.4.40.0000.01716.59
7.4.30.0090.01316.43
7.4.00.0070.00715.07
7.3.330.0000.00513.14
7.3.320.0050.00013.12
7.3.310.0030.00616.29
7.3.300.0030.00316.22
7.3.290.0160.00316.19
7.3.280.0060.01216.21
7.3.270.0090.01017.40
7.3.260.0100.00716.23
7.3.250.0100.00716.35
7.3.240.0140.00316.25
7.3.230.0130.00316.39
7.3.210.0120.00616.20
7.3.200.0120.00519.39
7.3.190.0110.00716.16
7.3.180.0090.00616.45
7.3.170.0100.00716.27
7.3.160.0090.00616.25
7.2.330.0100.01316.57
7.2.320.0120.01016.35
7.2.310.0130.00316.58
7.2.300.0070.01416.59
7.2.290.0060.01016.59
7.1.70.0030.00517.24
7.1.60.0070.01719.61
7.1.50.0100.01316.50
7.1.00.0070.07322.57
7.0.200.0080.00016.70
7.0.140.0070.07022.15
7.0.60.0070.04719.92
7.0.50.0070.06317.90
7.0.40.0100.08720.08
7.0.30.0500.07320.30
7.0.20.0370.04020.20
7.0.10.0000.09320.33
7.0.00.0100.04720.19
5.6.280.0000.07720.99
5.6.210.0070.04720.68
5.6.200.0070.04018.14
5.6.190.0030.06020.57
5.6.180.0470.05020.77
5.6.170.0100.04720.51
5.6.160.0030.04320.52
5.6.150.0100.08318.09
5.6.140.0000.07318.09
5.6.130.0070.04718.08
5.6.120.0130.07720.78
5.6.110.0070.06321.04
5.6.100.0030.07021.00
5.6.90.0100.07320.99
5.6.80.0070.08020.36
5.5.350.0130.08320.38
5.5.340.0100.05017.96
5.5.330.0200.07320.23
5.5.320.0000.06020.28
5.5.310.0370.03320.17
5.5.300.0130.05317.91
5.5.290.0000.05317.87
5.5.280.0030.07020.76
5.5.270.0030.08320.77
5.5.260.0170.06720.95
5.5.250.0070.04320.79
5.5.240.0200.07020.15
5.4.450.0870.03719.41
5.4.440.0270.04319.48
5.4.430.0130.06019.63
5.4.420.0800.05019.16
5.4.410.0300.06319.13
5.4.400.0070.05319.01
5.4.390.0730.06019.34
5.4.380.0200.06718.76
5.4.370.0270.05318.71
5.4.360.0270.06718.75
5.4.350.0070.07318.48
5.4.340.0300.04718.60
5.4.320.0130.05112.45
5.4.310.0070.04912.45
5.4.300.0090.04712.45
5.4.290.0080.05312.45
5.4.280.0090.04712.34
5.4.270.0070.04912.35
5.4.260.0080.04812.34
5.4.250.0060.03812.35
5.4.240.0070.03512.34
5.4.230.0090.03612.34
5.4.220.0080.03612.34
5.4.210.0050.03812.34
5.4.200.0060.03912.34
5.4.190.0050.03812.34
5.4.180.0080.04412.34
5.4.170.0060.03912.34
5.4.160.0090.05512.34
5.4.150.0070.03712.34
5.4.140.0070.04512.02
5.4.130.0070.03812.01
5.4.120.0080.03911.97
5.4.110.0080.03611.96
5.4.100.0080.03611.96
5.4.90.0080.04911.96
5.4.80.0060.04911.97
5.4.70.0070.03811.96
5.4.60.0070.03611.96
5.4.50.0080.03311.96
5.4.40.0090.03311.95
5.4.30.0080.03511.95
5.4.20.0120.03811.95
5.4.10.0060.03711.95
5.4.00.0040.03911.44
5.3.290.0090.04212.80
5.3.280.0090.03712.71
5.3.270.0090.04212.72
5.3.260.0120.03712.72
5.3.250.0070.03812.72
5.3.240.0060.04112.72
5.3.230.0060.03912.71
5.3.220.0060.03912.68
5.3.210.0080.04712.68
5.3.200.0060.03812.68
5.3.190.0030.04712.68
5.3.180.0080.03612.67
5.3.170.0060.03812.67
5.3.160.0040.03812.67
5.3.150.0070.04512.67
5.3.140.0100.04412.66
5.3.130.0070.04212.66
5.3.120.0070.04212.66
5.3.110.0090.03912.66
5.3.100.0040.03912.12
5.3.90.0070.04012.09
5.3.80.0110.03412.08
5.3.70.0040.04012.08
5.3.60.0100.03212.06
5.3.50.0070.03612.00
5.3.40.0060.03812.00
5.3.30.0060.03611.95
5.3.20.0050.03611.73
5.3.10.0090.03711.69
5.3.00.0080.03811.68
5.2.170.0080.0299.18
5.2.160.0030.0329.18
5.2.150.0070.0309.18
5.2.140.0080.0329.18
5.2.130.0050.0319.14
5.2.120.0100.0299.14
5.2.110.0080.0309.15
5.2.100.0080.0289.14
5.2.90.0060.0339.14
5.2.80.0050.0399.14
5.2.70.0060.0379.13
5.2.60.0040.0399.09
5.2.50.0050.0399.05
5.2.40.0080.0359.03
5.2.30.0080.0399.02
5.2.20.0070.0369.00
5.2.10.0050.0288.92
5.2.00.0060.0368.78
5.1.60.0100.0258.07
5.1.50.0050.0248.06
5.1.40.0040.0258.05
5.1.30.0040.0278.40
5.1.20.0050.0298.41
5.1.10.0040.0268.14
5.1.00.0060.0258.14
5.0.50.0050.0216.62
5.0.40.0050.0296.48
5.0.30.0040.0306.29
5.0.20.0060.0276.26
5.0.10.0020.0216.25
5.0.00.0080.0356.23
4.4.90.0030.0194.78
4.4.80.0030.0154.75
4.4.70.0010.0174.75
4.4.60.0020.0164.75
4.4.50.0020.0164.77
4.4.40.0060.0324.71
4.4.30.0030.0154.76
4.4.20.0060.0234.84
4.4.10.0050.0244.84
4.4.00.0030.0314.75
4.3.110.0070.0174.67
4.3.100.0040.0134.66
4.3.90.0030.0144.63
4.3.80.0030.0324.58
4.3.70.0040.0214.63
4.3.60.0020.0154.63
4.3.50.0030.0294.63
4.3.40.0010.0304.54
4.3.30.0040.0143.29
4.3.20.0010.0213.26
4.3.10.0070.0283.22
4.3.00.0000.02013.92

preferences:
40.1 ms | 401 KiB | 5 Q