3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(array(1),2,3); $b = array(1,2,3); $f = array(2,3,4); $c = array_merge($a, $b, $f); $d = array_unique(array(array(1,2,3), array(2,3,4))); var_dump($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)
8.3.70.0140.00416.63
8.3.60.0100.01016.75
8.3.50.0090.00921.92
8.3.40.0070.00718.76
8.3.30.0110.00318.88
8.3.20.0070.00020.39
8.3.10.0000.00820.32
8.3.00.0050.00319.13
8.2.180.0150.00616.50
8.2.170.0070.00722.96
8.2.160.0090.00920.31
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00721.03
8.2.110.0000.00920.34
8.2.100.0030.00717.84
8.2.90.0050.00219.23
8.2.80.0030.00517.97
8.2.70.0090.00017.48
8.2.60.0000.00817.91
8.2.50.0030.00718.07
8.2.40.0080.00018.16
8.2.30.0000.00819.43
8.2.20.0040.00417.49
8.2.10.0000.00919.79
8.2.00.0030.00617.72
8.1.280.0200.00325.92
8.1.270.0080.00023.96
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0030.00623.82
8.1.230.0110.00019.02
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.00917.35
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0030.00618.48
8.1.160.0000.00721.84
8.1.150.0000.00718.93
8.1.140.0000.00817.39
8.1.130.0070.00017.73
8.1.120.0040.00417.33
8.1.110.0000.00817.30
8.1.100.0000.00717.33
8.1.90.0000.00717.34
8.1.80.0030.00317.22
8.1.70.0070.00017.33
8.1.60.0000.00817.46
8.1.50.0040.00417.51
8.1.40.0030.00517.49
8.1.30.0030.00617.51
8.1.20.0040.00417.48
8.1.10.0050.00317.40
8.1.00.0040.00417.38
8.0.300.0040.00419.67
8.0.290.0000.00716.58
8.0.280.0000.00718.30
8.0.270.0080.00017.18
8.0.260.0000.00617.11
8.0.250.0070.00016.85
8.0.240.0030.00316.96
8.0.230.0030.00316.84
8.0.220.0030.00316.95
8.0.210.0050.00316.87
8.0.200.0070.00016.94
8.0.190.0030.00316.93
8.0.180.0040.00416.77
8.0.170.0080.00016.93
8.0.160.0030.00316.78
8.0.150.0040.00416.85
8.0.140.0030.00716.80
8.0.130.0040.00413.25
8.0.120.0040.00416.76
8.0.110.0040.00416.79
8.0.100.0000.00716.77
8.0.90.0040.00416.87
8.0.80.0040.01116.83
8.0.70.0000.00916.75
8.0.60.0000.00816.76
8.0.50.0080.00016.77
8.0.30.0100.01516.98
8.0.20.0110.01117.40
8.0.10.0030.00616.85
8.0.00.0080.01216.67
7.4.330.0020.00215.00
7.4.320.0030.00316.46
7.4.300.0000.00616.45
7.4.290.0000.00716.51
7.4.280.0030.00716.43
7.4.270.0060.00016.53
7.4.260.0030.00616.41
7.4.250.0000.00716.38
7.4.240.0000.00716.44
7.4.230.0000.00816.27
7.4.220.0120.00616.35
7.4.210.0140.00016.41
7.4.200.0040.00416.48
7.4.160.0030.01916.41
7.4.150.0030.01717.40
7.4.140.0140.00417.86
7.4.130.0120.00516.37
7.4.120.0100.00716.42
7.4.110.0080.00816.35
7.4.100.0110.01116.43
7.4.90.0090.00816.47
7.4.80.0130.00619.39
7.4.70.0110.00816.62
7.4.60.0030.01516.58
7.4.50.0030.00516.44
7.4.40.0090.00916.50
7.4.30.0040.01416.49
7.4.00.0060.01214.84
7.3.330.0050.00013.04
7.3.320.0000.00512.99
7.3.310.0070.00016.26
7.3.300.0030.00316.19
7.3.290.0000.01416.34
7.3.280.0100.01016.17
7.3.270.0060.01217.40
7.3.260.0100.00616.19
7.3.250.0120.00616.24
7.3.240.0100.00716.15
7.3.230.0100.00716.39
7.3.210.0150.00316.16
7.3.200.0110.01419.39
7.3.190.0100.00716.36
7.3.180.0070.00716.21
7.3.170.0040.01316.27
7.3.160.0120.00416.24
7.2.330.0040.02116.46
7.2.320.0140.00416.49
7.2.310.0100.00716.31
7.2.300.0070.01116.50
7.2.290.0120.00316.73
7.2.00.0030.01019.09
7.1.100.0030.00917.95
7.1.70.0040.01216.92
7.1.60.0090.01619.61
7.1.50.0070.01716.92
7.1.00.0070.09022.54
7.0.200.0000.00916.61
7.0.140.0000.07722.07
7.0.60.0100.03319.91
7.0.50.0030.06017.79
7.0.40.0030.08720.09
7.0.30.0100.04720.17
7.0.20.0270.08020.16
7.0.10.0100.05320.09
7.0.00.0100.08319.99
5.6.280.0000.07721.06
5.6.210.0130.08020.61
5.6.200.0130.08018.12
5.6.190.0000.07020.32
5.6.180.0300.04320.64
5.6.170.0230.03320.48
5.6.160.0070.08720.47
5.6.150.0030.04018.22
5.6.140.0100.07718.18
5.6.130.0070.08718.17
5.6.120.0030.09020.95
5.6.110.0130.07020.97
5.6.100.0270.06720.88
5.6.90.0070.08720.88
5.6.80.0070.08320.38
5.5.350.0270.09020.37
5.5.340.0100.04017.92
5.5.330.0100.07320.25
5.5.320.0030.08320.41
5.5.310.0270.08020.18
5.5.300.0070.06017.98
5.5.290.0100.05717.87
5.5.280.0070.07720.80
5.5.270.0130.07320.86
5.5.260.0070.08020.86
5.5.250.0100.09020.70
5.5.240.0130.07720.12
5.4.450.1130.03719.39
5.4.440.0270.04019.21
5.4.430.1170.05319.51
5.4.420.0870.05319.14
5.4.410.0800.05719.32
5.4.400.0930.04319.05
5.4.390.0500.06318.82
5.4.380.0200.06018.56
5.4.370.0300.04018.64
5.4.360.0200.05018.45
5.4.350.0170.05718.64
5.4.340.0300.04318.65
5.4.320.0070.03812.46
5.4.310.0100.03712.45
5.4.300.0080.03712.45
5.4.290.0060.04412.45
5.4.280.0060.04312.35
5.4.270.0100.04112.35
5.4.260.0070.03612.35
5.4.250.0080.03712.35
5.4.240.0080.03712.35
5.4.230.0080.04012.34
5.4.220.0060.03912.34
5.4.210.0120.04012.34
5.4.200.0090.04412.34
5.4.190.0050.03812.34
5.4.180.0060.03912.34
5.4.170.0100.03912.35
5.4.160.0120.03612.34
5.4.150.0080.03812.34
5.4.140.0080.04012.03
5.4.130.0110.04012.02
5.4.120.0060.04011.98
5.4.110.0070.03611.97
5.4.100.0050.03711.96
5.4.90.0070.03711.96
5.4.80.0110.04111.97
5.4.70.0070.04011.96
5.4.60.0060.04011.96
5.4.50.0080.04311.96
5.4.40.0110.03611.95
5.4.30.0100.04411.95
5.4.20.0080.03911.95
5.4.10.0090.03611.95
5.4.00.0050.04011.44
5.3.290.0080.04212.80
5.3.280.0080.04312.71
5.3.270.0070.03912.72
5.3.260.0090.04712.72
5.3.250.0110.03812.72
5.3.240.0090.04312.72
5.3.230.0070.03712.70
5.3.220.0130.04012.68
5.3.210.0120.04112.68
5.3.200.0080.04612.68
5.3.190.0090.03712.68
5.3.180.0140.03612.67
5.3.170.0110.03412.67
5.3.160.0100.03412.67
5.3.150.0110.04212.68
5.3.140.0030.03912.66
5.3.130.0090.04212.66
5.3.120.0100.04012.66
5.3.110.0060.03912.66
5.3.100.0080.03612.12
5.3.90.0050.03812.09
5.3.80.0070.03612.07
5.3.70.0060.03612.08
5.3.60.0070.04112.07
5.3.50.0080.04412.00
5.3.40.0080.04112.00
5.3.30.0080.04511.95
5.3.20.0060.03611.72
5.3.10.0080.03811.69
5.3.00.0120.03611.68
5.2.170.0050.0309.18
5.2.160.0070.0329.18
5.2.150.0060.0369.18
5.2.140.0080.0349.18
5.2.130.0050.0299.14
5.2.120.0030.0319.14
5.2.110.0070.0279.14
5.2.100.0080.0289.15
5.2.90.0020.0339.14
5.2.80.0030.0329.14
5.2.70.0060.0359.13
5.2.60.0040.0319.09
5.2.50.0050.0419.05
5.2.40.0040.0309.04
5.2.30.0050.0299.02
5.2.20.0040.0299.00
5.2.10.0060.0338.92
5.2.00.0060.0308.78
5.1.60.0060.0298.07
5.1.50.0100.0278.05
5.1.40.0040.0258.05
5.1.30.0040.0258.39
5.1.20.0050.0268.41
5.1.10.0030.0268.14
5.1.00.0060.0318.14
5.0.50.0070.0206.61
5.0.40.0020.0216.48
5.0.30.0000.0346.29
5.0.20.0060.0176.26
5.0.10.0050.0216.24
5.0.00.0040.0316.23
4.4.90.0010.0184.78
4.4.80.0020.0184.76
4.4.70.0050.0144.75
4.4.60.0020.0174.76
4.4.50.0020.0164.77
4.4.40.0050.0294.70
4.4.30.0020.0164.76
4.4.20.0050.0214.85
4.4.10.0030.0204.85
4.4.00.0030.0294.75
4.3.110.0040.0204.67
4.3.100.0050.0124.66
4.3.90.0060.0114.63
4.3.80.0060.0284.59
4.3.70.0030.0144.63
4.3.60.0040.0154.62
4.3.50.0040.0144.63
4.3.40.0010.0264.54
4.3.30.0010.0173.29
4.3.20.0030.0183.27
4.3.10.0030.0173.21
4.3.00.0130.01313.92

preferences:
34.18 ms | 401 KiB | 5 Q