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); $d = array_unique(array_merge(array(array(1,2,3), array(2,3,4)))); var_dump($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)
8.3.40.0090.00618.43
8.3.30.0110.00318.77
8.3.20.0040.00420.20
8.3.10.0080.00020.54
8.3.00.0080.00019.26
8.2.170.0040.01122.96
8.2.160.0160.00320.19
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0040.00420.95
8.2.110.0180.00422.14
8.2.100.0070.00417.72
8.2.90.0040.00419.14
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0050.00217.80
8.2.50.0050.00518.07
8.2.40.0070.00018.09
8.2.30.0030.00619.48
8.2.20.0050.00317.60
8.2.10.0030.00618.16
8.2.00.0090.00017.55
8.1.270.0090.00023.80
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.76
8.1.230.0040.00719.04
8.1.220.0030.00617.74
8.1.210.0000.00718.77
8.1.200.0030.00617.23
8.1.190.0040.00417.00
8.1.180.0040.00418.10
8.1.170.0040.00418.53
8.1.160.0050.00221.94
8.1.150.0000.00718.86
8.1.140.0040.00417.36
8.1.130.0000.00717.73
8.1.120.0000.00817.36
8.1.110.0000.00717.35
8.1.100.0040.00417.47
8.1.90.0000.00817.40
8.1.80.0030.00317.35
8.1.70.0030.00317.37
8.1.60.0090.00017.45
8.1.50.0040.00417.37
8.1.40.0020.00517.48
8.1.30.0040.00417.49
8.1.20.0040.00417.47
8.1.10.0030.00617.48
8.1.00.0040.00417.39
8.0.300.0070.00018.77
8.0.290.0030.00316.63
8.0.280.0030.00318.37
8.0.270.0050.00317.24
8.0.260.0030.00317.17
8.0.250.0030.00316.91
8.0.240.0030.00316.93
8.0.230.0000.00716.98
8.0.220.0030.00316.88
8.0.210.0000.00816.91
8.0.200.0040.00416.92
8.0.190.0000.00716.82
8.0.180.0050.00216.89
8.0.170.0030.00616.81
8.0.160.0030.00516.91
8.0.150.0000.00716.74
8.0.140.0060.00316.86
8.0.130.0070.00013.30
8.0.120.0050.00316.75
8.0.110.0040.00416.84
8.0.100.0040.00416.94
8.0.90.0000.00716.86
8.0.80.0030.01316.95
8.0.70.0000.00716.90
8.0.60.0040.00416.90
8.0.50.0070.00016.99
8.0.30.0100.01017.05
8.0.20.0100.00917.40
8.0.10.0050.00217.02
8.0.00.0060.01116.75
7.4.330.0000.00515.00
7.4.320.0000.00616.50
7.4.300.0000.00616.53
7.4.290.0000.00816.51
7.4.280.0070.00316.50
7.4.270.0030.00316.52
7.4.260.0020.00716.44
7.4.250.0050.00216.44
7.4.240.0050.00216.41
7.4.230.0070.00016.52
7.4.220.0170.00316.53
7.4.210.0030.01016.44
7.4.200.0000.00716.53
7.4.160.0120.00616.21
7.4.150.0060.01217.40
7.4.140.0100.00717.86
7.4.130.0120.00916.45
7.4.120.0110.00616.64
7.4.110.0050.01116.42
7.4.100.0070.01116.52
7.4.90.0070.01016.31
7.4.80.0090.00919.39
7.4.70.0080.01116.43
7.4.60.0060.01216.43
7.4.50.0050.00316.41
7.4.40.0110.00616.55
7.4.30.0060.01216.42
7.4.00.0070.01014.64
7.3.330.0060.00013.18
7.3.320.0050.00013.13
7.3.310.0000.00716.16
7.3.300.0030.00316.18
7.3.290.0100.00616.21
7.3.280.0090.00716.17
7.3.270.0090.01617.40
7.3.260.0090.00916.22
7.3.250.0130.00516.37
7.3.240.0070.01316.47
7.3.230.0090.00616.39
7.3.210.0070.01116.13
7.3.200.0030.01719.39
7.3.190.0120.01216.29
7.3.180.0110.00516.07
7.3.170.0130.00316.27
7.3.160.0030.01316.45
7.2.330.0100.01016.36
7.2.320.0070.01116.32
7.2.310.0110.00816.58
7.2.300.0040.01416.60
7.2.290.0120.00416.45
7.2.60.0100.00316.77
7.2.00.0040.00819.05
7.1.200.0030.00715.74
7.1.100.0060.00318.21
7.1.70.0030.01217.11
7.1.60.0090.01619.61
7.1.50.0140.01016.79
7.1.00.0070.07322.57
7.0.200.0070.00016.46
7.0.140.0000.07721.95
7.0.60.0070.04019.95
7.0.50.0170.07017.82
7.0.40.0100.08319.90
7.0.30.0200.07320.02
7.0.20.0230.07720.09
7.0.10.0030.06020.12
7.0.00.0130.08020.09
5.6.280.0000.07720.89
5.6.210.0030.09020.73
5.6.200.0070.08318.17
5.6.190.0030.04320.39
5.6.180.0330.04720.56
5.6.170.0170.04020.54
5.6.160.0030.07720.51
5.6.150.0100.07718.11
5.6.140.0070.08018.10
5.6.130.0130.06018.10
5.6.120.0000.05320.76
5.6.110.0130.07721.01
5.6.100.0100.08320.88
5.6.90.0070.06020.97
5.6.80.0030.08320.52
5.5.350.0170.08020.27
5.5.340.0130.07317.89
5.5.330.0030.08020.23
5.5.320.0030.04020.51
5.5.310.0300.05320.23
5.5.300.0030.08017.92
5.5.290.0030.07717.96
5.5.280.0070.08320.80
5.5.270.0100.08020.78
5.5.260.0130.07320.65
5.5.250.0070.08720.49
5.5.240.0230.06320.34
5.4.450.0270.02719.56
5.4.440.0030.03319.10
5.4.430.0900.03719.32
5.4.420.0670.06319.50
5.4.410.0530.06019.12
5.4.400.0800.04719.31
5.4.390.0900.05719.34
5.4.380.0170.08018.57
5.4.370.0370.06018.55
5.4.360.0430.04318.56
5.4.350.0300.05718.78
5.4.340.0200.05018.48
5.4.320.0090.03612.45
5.4.310.0070.04012.45
5.4.300.0100.04112.46
5.4.290.0090.03912.45
5.4.280.0040.04112.35
5.4.270.0080.03512.35
5.4.260.0080.03712.35
5.4.250.0050.04312.35
5.4.240.0150.04212.35
5.4.230.0100.03912.34
5.4.220.0080.03612.34
5.4.210.0100.03312.34
5.4.200.0070.04112.34
5.4.190.0090.03412.34
5.4.180.0080.04412.34
5.4.170.0090.03912.35
5.4.160.0100.03612.34
5.4.150.0060.04512.34
5.4.140.0070.03612.03
5.4.130.0040.04112.02
5.4.120.0070.03711.97
5.4.110.0100.03611.97
5.4.100.0070.03411.97
5.4.90.0130.03311.97
5.4.80.0050.03811.96
5.4.70.0080.03511.96
5.4.60.0080.04111.96
5.4.50.0080.04111.96
5.4.40.0090.04511.95
5.4.30.0040.04211.95
5.4.20.0060.04511.95
5.4.10.0070.03311.95
5.4.00.0060.03511.43
5.3.290.0070.05112.80
5.3.280.0090.03812.71
5.3.270.0080.04212.73
5.3.260.0050.04012.72
5.3.250.0050.03912.72
5.3.240.0030.03912.71
5.3.230.0110.04212.70
5.3.220.0090.03912.68
5.3.210.0060.05012.68
5.3.200.0070.03912.68
5.3.190.0080.04512.68
5.3.180.0100.03612.67
5.3.170.0070.04512.67
5.3.160.0060.03612.67
5.3.150.0050.04412.67
5.3.140.0060.04612.66
5.3.130.0080.04212.66
5.3.120.0100.04312.66
5.3.110.0110.04312.66
5.3.100.0080.03812.12
5.3.90.0030.04412.08
5.3.80.0050.04812.07
5.3.70.0100.03712.08
5.3.60.0070.03912.07
5.3.50.0080.03812.00
5.3.40.0070.03612.00
5.3.30.0100.03411.95
5.3.20.0080.03711.73
5.3.10.0080.03311.69
5.3.00.0060.03711.68
5.2.170.0050.0379.18
5.2.160.0050.0359.18
5.2.150.0080.0319.18
5.2.140.0080.0349.18
5.2.130.0060.0379.14
5.2.120.0060.0309.14
5.2.110.0060.0279.14
5.2.100.0050.0289.14
5.2.90.0060.0289.14
5.2.80.0090.0389.14
5.2.70.0070.0409.14
5.2.60.0070.0299.09
5.2.50.0060.0289.06
5.2.40.0110.0229.04
5.2.30.0060.0289.01
5.2.20.0060.0349.00
5.2.10.0060.0308.92
5.2.00.0060.0298.78
5.1.60.0030.0268.07
5.1.50.0080.0258.06
5.1.40.0030.0258.05
5.1.30.0030.0268.39
5.1.20.0030.0278.41
5.1.10.0030.0278.14
5.1.00.0060.0238.14
5.0.50.0040.0196.62
5.0.40.0030.0196.48
5.0.30.0020.0326.29
5.0.20.0040.0186.27
5.0.10.0030.0206.23
5.0.00.0040.0296.24
4.4.90.0020.0164.78
4.4.80.0040.0144.76
4.4.70.0030.0154.75
4.4.60.0020.0164.75
4.4.50.0020.0194.77
4.4.40.0000.0284.71
4.4.30.0040.0144.76
4.4.20.0010.0174.84
4.4.10.0020.0164.85
4.4.00.0030.0244.76
4.3.110.0040.0184.67
4.3.100.0020.0184.66
4.3.90.0020.0184.64
4.3.80.0030.0234.58
4.3.70.0020.0144.63
4.3.60.0040.0144.63
4.3.50.0010.0204.63
4.3.40.0030.0244.54
4.3.30.0020.0163.29
4.3.20.0010.0183.27
4.3.10.0020.0153.22
4.3.00.0070.01013.92

preferences:
39.63 ms | 400 KiB | 5 Q