3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array("uno" => array(1,2,3),array(2),3); $b = array(array(1,2,3),array(2),3); $f = array(array(2,3,4),array(3),4); $c = array_merge($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)
8.3.60.0110.00316.38
8.3.50.0090.00721.99
8.3.40.0150.00018.85
8.3.30.0110.00418.89
8.3.20.0040.00420.27
8.3.10.0080.00020.36
8.3.00.0030.00519.25
8.2.180.0000.01516.38
8.2.170.0110.00422.96
8.2.160.0100.01020.39
8.2.150.0050.00325.66
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0070.00718.68
8.2.110.0120.00922.11
8.2.100.0060.00617.84
8.2.90.0030.00617.63
8.2.80.0000.00817.97
8.2.70.0000.00818.04
8.2.60.0000.00917.91
8.2.50.0080.00018.10
8.2.40.0040.00420.72
8.2.30.0000.00719.30
8.2.20.0070.00017.60
8.2.10.0020.00517.99
8.2.00.0000.00817.73
8.1.280.0100.00725.92
8.1.270.0030.00523.79
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00322.05
8.1.230.0070.00418.92
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0060.00317.25
8.1.190.0070.00417.23
8.1.180.0000.00818.10
8.1.170.0050.00318.64
8.1.160.0070.00021.94
8.1.150.0050.00218.86
8.1.140.0060.00317.39
8.1.130.0000.00717.81
8.1.120.0040.00417.32
8.1.110.0040.00417.43
8.1.100.0030.00317.36
8.1.90.0030.00317.39
8.1.80.0000.00817.34
8.1.70.0000.00717.31
8.1.60.0050.00317.53
8.1.50.0000.00717.35
8.1.40.0040.00417.43
8.1.30.0040.00417.58
8.1.20.0030.00617.47
8.1.10.0040.00417.32
8.1.00.0050.00217.42
8.0.300.0040.00419.65
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0040.00417.19
8.0.260.0030.00317.16
8.0.250.0040.00416.84
8.0.240.0000.00716.97
8.0.230.0040.00416.96
8.0.220.0050.00216.87
8.0.210.0050.00216.95
8.0.200.0060.00016.84
8.0.190.0070.00016.95
8.0.180.0030.00316.80
8.0.170.0030.00516.95
8.0.160.0000.00716.77
8.0.150.0070.00016.83
8.0.140.0070.00416.73
8.0.130.0040.00413.25
8.0.120.0040.00416.87
8.0.110.0000.00716.72
8.0.100.0040.00416.77
8.0.90.0030.00516.79
8.0.80.0060.00916.82
8.0.70.0080.00016.87
8.0.60.0070.00016.95
8.0.50.0040.00416.89
8.0.30.0140.00616.98
8.0.20.0110.01317.40
8.0.10.0000.00816.85
8.0.00.0120.00916.72
7.4.330.0050.00015.06
7.4.320.0030.00316.42
7.4.300.0040.00416.44
7.4.290.0000.00716.54
7.4.280.0120.00016.54
7.4.270.0000.00716.42
7.4.260.0000.01016.34
7.4.250.0050.00216.35
7.4.240.0020.00516.50
7.4.230.0030.00316.39
7.4.220.0100.00716.47
7.4.210.0060.00816.52
7.4.200.0030.00316.31
7.4.160.0120.00616.29
7.4.150.0030.01517.40
7.4.140.0110.00817.86
7.4.130.0110.00816.59
7.4.120.0100.01216.54
7.4.110.0060.01116.51
7.4.100.0060.01216.60
7.4.90.0130.00416.39
7.4.80.0080.01119.39
7.4.70.0060.01816.33
7.4.60.0080.00816.39
7.4.50.0040.00416.38
7.4.40.0100.00716.41
7.4.30.0090.00916.48
7.4.00.0040.01215.05
7.3.330.0020.00213.11
7.3.320.0000.00613.09
7.3.310.0000.00716.14
7.3.300.0060.00016.17
7.3.290.0030.01116.23
7.3.280.0060.01016.24
7.3.270.0140.00317.40
7.3.260.0130.01016.30
7.3.250.0110.00916.32
7.3.240.0090.00916.45
7.3.230.0110.00616.41
7.3.210.0150.00616.43
7.3.200.0030.01319.39
7.3.190.0180.00016.39
7.3.180.0080.00816.31
7.3.170.0100.00616.29
7.3.160.0060.00916.20
7.2.330.0100.01416.66
7.2.320.0110.00716.22
7.2.310.0100.01316.41
7.2.300.0120.00616.59
7.2.290.0040.01816.38
7.2.60.0090.00616.86
7.2.00.0000.01419.38
7.1.200.0090.00015.66
7.1.100.0030.01017.82
7.1.70.0050.00316.78
7.1.60.0030.01919.61
7.1.50.0100.01316.73
7.1.00.0170.06322.33
7.0.200.0000.00716.28
7.0.140.0000.07721.96
7.0.60.0100.04020.00
7.0.50.0170.06317.75
7.0.40.0030.06020.12
7.0.30.0400.07320.13
7.0.20.0330.05320.16
7.0.10.0100.08720.13
7.0.00.0100.04020.16
5.6.280.0000.07721.02
5.6.210.0070.06720.65
5.6.200.0070.04718.22
5.6.190.0170.07720.41
5.6.180.0530.07320.50
5.6.170.0130.04320.41
5.6.160.0130.08020.40
5.6.150.0030.08718.11
5.6.140.0070.05318.17
5.6.130.0070.05318.21
5.6.120.0130.05321.01
5.6.110.0100.07320.98
5.6.100.0070.07020.98
5.6.90.0130.05321.09
5.6.80.0230.06320.40
5.5.350.0170.07720.46
5.5.340.0100.08017.91
5.5.330.0030.06320.14
5.5.320.0000.05020.51
5.5.310.0230.06320.14
5.5.300.0030.04718.01
5.5.290.0100.07717.97
5.5.280.0030.05720.87
5.5.270.0170.04320.75
5.5.260.0070.08020.86
5.5.250.0000.07320.61
5.5.240.0130.07720.16
5.4.450.0230.04319.57
5.4.440.0570.05019.39
5.4.430.0900.05319.41
5.4.420.0530.06019.36
5.4.410.0400.06019.25
5.4.400.0770.05319.22
5.4.390.0500.06019.30
5.4.380.0130.06018.67
5.4.370.0270.05318.47
5.4.360.0270.05018.48
5.4.350.0230.06018.63
5.4.340.0130.06018.60
5.4.320.0060.03912.46
5.4.310.0090.03812.45
5.4.300.0090.04112.46
5.4.290.0090.04212.45
5.4.280.0090.04012.35
5.4.270.0100.03612.35
5.4.260.0100.03812.35
5.4.250.0060.04612.35
5.4.240.0120.03512.35
5.4.230.0090.04612.34
5.4.220.0100.04112.34
5.4.210.0070.03912.34
5.4.200.0060.04012.34
5.4.190.0120.03512.34
5.4.180.0120.03412.34
5.4.170.0090.04312.35
5.4.160.0060.03712.34
5.4.150.0090.04612.34
5.4.140.0080.04412.03
5.4.130.0100.04112.01
5.4.120.0070.03911.97
5.4.110.0090.03911.97
5.4.100.0070.04511.97
5.4.90.0070.03611.97
5.4.80.0090.03611.97
5.4.70.0040.03711.96
5.4.60.0080.03311.96
5.4.50.0050.04311.96
5.4.40.0050.03511.95
5.4.30.0070.04011.95
5.4.20.0070.03711.95
5.4.10.0060.03811.95
5.4.00.0040.04411.44
5.3.290.0130.05312.80
5.3.280.0060.03812.70
5.3.270.0030.04212.73
5.3.260.0090.04112.72
5.3.250.0050.03812.72
5.3.240.0050.03812.72
5.3.230.0070.03712.70
5.3.220.0030.04012.68
5.3.210.0110.03712.68
5.3.200.0090.03412.68
5.3.190.0080.03512.68
5.3.180.0130.03012.68
5.3.170.0080.03612.67
5.3.160.0080.03612.68
5.3.150.0100.04212.67
5.3.140.0110.03412.66
5.3.130.0050.04012.66
5.3.120.0080.04312.66
5.3.110.0110.03912.65
5.3.100.0050.03812.12
5.3.90.0070.03612.08
5.3.80.0130.04012.07
5.3.70.0050.03812.08
5.3.60.0040.04012.07
5.3.50.0080.03512.00
5.3.40.0050.04112.00
5.3.30.0090.03811.95
5.3.20.0030.03811.72
5.3.10.0090.03711.69
5.3.00.0040.03911.68
5.2.170.0060.0309.18
5.2.160.0050.0299.18
5.2.150.0040.0329.18
5.2.140.0080.0329.18
5.2.130.0080.0309.14
5.2.120.0080.0349.14
5.2.110.0040.0339.15
5.2.100.0080.0269.14
5.2.90.0130.0349.14
5.2.80.0090.0439.14
5.2.70.0080.0309.14
5.2.60.0040.0409.09
5.2.50.0060.0319.06
5.2.40.0050.0369.04
5.2.30.0060.0389.01
5.2.20.0080.0379.00
5.2.10.0080.0408.94
5.2.00.0070.0318.79
5.1.60.0050.0268.09
5.1.50.0050.0258.08
5.1.40.0020.0338.06
5.1.30.0080.0278.41
5.1.20.0090.0268.43
5.1.10.0050.0338.16
5.1.00.0080.0368.16
5.0.50.0040.0256.64
5.0.40.0030.0196.50
5.0.30.0050.0336.30
5.0.20.0060.0286.28
5.0.10.0050.0296.25
5.0.00.0040.0316.25
4.4.90.0020.0164.78
4.4.80.0060.0144.75
4.4.70.0090.0174.75
4.4.60.0050.0184.75
4.4.50.0020.0164.77
4.4.40.0030.0254.71
4.4.30.0010.0174.76
4.4.20.0020.0164.84
4.4.10.0040.0174.85
4.4.00.0020.0384.76
4.3.110.0010.0204.67
4.3.100.0020.0184.66
4.3.90.0060.0144.63
4.3.80.0040.0304.58
4.3.70.0040.0174.63
4.3.60.0000.0234.63
4.3.50.0050.0174.62
4.3.40.0040.0274.54
4.3.30.0030.0183.30
4.3.20.0020.0203.28
4.3.10.0030.0203.24
4.3.00.0000.01713.92

preferences:
38.01 ms | 401 KiB | 5 Q