3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1[0] = 'zero'; $array1[1] = 'one'; $array2[1] = 'one'; $array2[2] = 'two'; $array2[3] = 'three'; var_dump($array1 + $array2); var_dump(array_merge($array1 + $array2));

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)
8.3.60.0170.00318.05
8.3.50.0190.00822.87
8.3.40.0180.00318.96
8.3.30.0130.00319.23
8.3.20.0050.00320.35
8.3.10.0030.00523.66
8.3.00.0080.00017.63
8.2.180.0130.01016.50
8.2.170.0080.00822.96
8.2.160.0070.00720.21
8.2.150.0020.00524.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00421.05
8.2.110.0000.00822.25
8.2.100.0060.00617.78
8.2.90.0050.00319.08
8.2.80.0040.00417.97
8.2.70.0030.00517.50
8.2.60.0080.00018.02
8.2.50.0000.00818.07
8.2.40.0060.00318.22
8.2.30.0040.00417.93
8.2.20.0000.00817.65
8.2.10.0030.00618.04
8.2.00.0030.00617.74
8.1.280.0000.01525.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0060.00323.75
8.1.230.0130.00019.04
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0030.00617.25
8.1.190.0040.00417.23
8.1.180.0000.00919.01
8.1.170.0040.00418.59
8.1.160.0000.00721.94
8.1.150.0080.00018.75
8.1.140.0070.00017.31
8.1.130.0030.00317.70
8.1.120.0000.00917.23
8.1.110.0040.00417.36
8.1.100.0000.00817.23
8.1.90.0040.00417.32
8.1.80.0070.00017.31
8.1.70.0030.00517.33
8.1.60.0030.00617.34
8.1.50.0000.00817.36
8.1.40.0040.00417.25
8.1.30.0000.00817.37
8.1.20.0030.00517.59
8.1.10.0000.00817.46
8.1.00.0000.00717.30
8.0.300.0000.00718.77
8.0.290.0060.00316.63
8.0.280.0030.00318.33
8.0.270.0000.00717.13
8.0.260.0030.00318.27
8.0.250.0030.00316.89
8.0.240.0000.00716.78
8.0.230.0040.00416.86
8.0.220.0070.00016.81
8.0.210.0030.00516.82
8.0.200.0040.00416.83
8.0.190.0040.00416.79
8.0.180.0030.00516.85
8.0.170.0000.00716.77
8.0.160.0000.00716.88
8.0.150.0000.00816.70
8.0.140.0000.00716.74
8.0.130.0070.00013.18
8.0.120.0050.00316.77
8.0.110.0040.00416.80
8.0.100.0040.00416.77
8.0.90.0030.00316.77
8.0.80.0100.00716.82
8.0.70.0050.00316.70
8.0.60.0050.00216.84
8.0.50.0040.00416.77
8.0.30.0160.00417.04
8.0.20.0070.01117.40
8.0.10.0080.00016.98
8.0.00.0030.01716.69
7.4.330.0050.00015.00
7.4.320.0030.00316.43
7.4.300.0060.00016.54
7.4.290.0000.00716.58
7.4.280.0000.00816.55
7.4.270.0040.00416.53
7.4.260.0000.00816.52
7.4.250.0050.00216.48
7.4.240.0000.00716.41
7.4.230.0000.00716.43
7.4.220.0030.01616.39
7.4.210.0110.00416.50
7.4.200.0030.00316.28
7.4.160.0080.00816.29
7.4.150.0090.00917.40
7.4.140.0120.00717.86
7.4.130.0120.00516.50
7.4.120.0160.00516.41
7.4.110.0120.00616.44
7.4.100.0140.00716.34
7.4.90.0100.00716.48
7.4.80.0120.00619.39
7.4.70.0150.00916.46
7.4.60.0040.01416.56
7.4.50.0000.00816.51
7.4.40.0060.00916.50
7.4.30.0080.00816.66
7.4.00.0030.01314.84
7.3.330.0030.00313.20
7.3.320.0020.00213.10
7.3.310.0070.00016.16
7.3.300.0030.00316.29
7.3.290.0100.00616.26
7.3.280.0060.00916.27
7.3.270.0120.00617.40
7.3.260.0080.01716.54
7.3.250.0130.00916.37
7.3.240.0160.00416.30
7.3.230.0060.01016.44
7.3.210.0060.01116.48
7.3.200.0090.01319.39
7.3.190.0140.00316.23
7.3.180.0060.01216.35
7.3.170.0000.01616.34
7.3.160.0100.00716.36
7.2.330.0110.00716.31
7.2.320.0040.01416.27
7.2.310.0100.01016.24
7.2.300.0140.00316.67
7.2.290.0060.01216.62
7.2.00.0060.01019.39
7.1.200.0060.00615.77
7.1.100.0040.01117.84
7.1.70.0060.00917.26
7.1.60.0040.02119.40
7.1.50.0100.01316.93
7.1.00.0070.07022.32
7.0.200.0000.00716.51
7.0.140.0070.06322.05
7.0.60.0030.06019.92
7.0.50.0000.06717.80
7.0.40.0100.08320.24
7.0.30.0300.07720.23
7.0.20.0270.07720.31
7.0.10.0030.04720.21
7.0.00.0070.06020.01
5.6.280.0100.06721.09
5.6.210.0170.07720.66
5.6.200.0030.09018.17
5.6.190.0070.04320.49
5.6.180.3900.03720.42
5.6.170.0330.07320.33
5.6.160.0030.07020.76
5.6.150.0030.05718.10
5.6.140.0170.07018.21
5.6.130.0030.07718.17
5.6.120.0070.04320.98
5.6.110.0000.09720.88
5.6.100.0100.05721.02
5.6.90.0030.04320.99
5.6.80.0030.04720.25
5.5.350.0000.07020.38
5.5.340.0070.04018.02
5.5.330.0000.04720.12
5.5.320.0330.07020.32
5.5.310.0300.04720.24
5.5.300.0070.07018.01
5.5.290.0070.07017.96
5.5.280.0070.05720.76
5.5.270.0070.04720.95
5.5.260.0030.04020.71
5.5.250.0070.03720.68
5.5.240.2530.03720.32
5.4.450.0330.04719.38
5.4.440.0370.03719.13
5.4.430.0600.04719.45
5.4.420.0530.04319.13
5.4.410.0630.05719.32
5.4.400.0730.03719.25
5.4.390.0200.04019.24
5.4.380.0530.05318.59
5.4.370.0330.05318.68
5.4.360.0500.06018.70
5.4.350.0470.05018.78
5.4.340.0300.06018.68
5.4.320.0090.03412.45
5.4.310.0100.04012.45
5.4.300.0060.03812.45
5.4.290.0090.04012.45
5.4.280.0060.04012.35
5.4.270.0080.03412.35
5.4.260.0060.03812.34
5.4.250.0050.03812.35
5.4.240.0110.03612.34
5.4.230.0030.04512.34
5.4.220.0070.04212.34
5.4.210.0070.04812.34
5.4.200.0070.03712.34
5.4.190.0080.03512.34
5.4.180.0080.03512.33
5.4.170.0090.03912.34
5.4.160.0090.03512.34
5.4.150.0100.04312.34
5.4.140.0050.04612.02
5.4.130.0050.03912.01
5.4.120.0070.03511.96
5.4.110.0060.04211.96
5.4.100.0060.03511.96
5.4.90.0060.03711.96
5.4.80.0070.03511.96
5.4.70.0070.03411.96
5.4.60.0070.03311.96
5.4.50.0080.03511.96
5.4.40.0070.03511.95
5.4.30.0080.03911.95
5.4.20.0030.03811.95
5.4.10.0070.03311.95
5.4.00.0070.03611.43
5.3.290.0070.04212.80
5.3.280.0060.04012.71
5.3.270.0080.03812.73
5.3.260.0060.03912.72
5.3.250.0110.03712.72
5.3.240.0090.03712.72
5.3.230.0060.04012.70
5.3.220.0080.04612.68
5.3.210.0080.05512.68
5.3.200.0070.04112.68
5.3.190.0070.04012.68
5.3.180.0040.04112.68
5.3.170.0080.03712.67
5.3.160.0100.05612.67
5.3.150.0120.04712.67
5.3.140.0120.04612.66
5.3.130.0020.04312.66
5.3.120.0080.03712.66
5.3.110.0080.03812.66
5.3.100.0040.03912.12
5.3.90.0060.03712.08
5.3.80.0050.03712.07
5.3.70.0040.03912.07
5.3.60.0050.03912.06
5.3.50.0030.03912.00
5.3.40.0090.03412.00
5.3.30.0080.03411.94
5.3.20.0040.03911.72
5.3.10.0040.03811.69
5.3.00.0030.04011.68
5.2.170.0060.0329.18
5.2.160.0020.0359.18
5.2.150.0060.0299.18
5.2.140.0040.0379.17
5.2.130.0070.0279.13
5.2.120.0070.0269.13
5.2.110.0050.0299.14
5.2.100.0060.0279.14
5.2.90.0030.0319.14
5.2.80.0020.0339.13
5.2.70.0050.0299.13
5.2.60.0050.0299.09
5.2.50.0030.0329.06
5.2.40.0050.0299.03
5.2.30.0060.0309.01
5.2.20.0050.0299.00
5.2.10.0080.0258.92
5.2.00.0060.0278.77
5.1.60.0040.0248.06
5.1.50.0050.0318.05
5.1.40.0090.0338.04
5.1.30.0040.0378.39
5.1.20.0060.0258.41
5.1.10.0060.0258.14
5.1.00.0060.0248.13
5.0.50.0030.0216.61
5.0.40.0040.0196.47
5.0.30.0030.0336.29
5.0.20.0050.0196.26
5.0.10.0020.0226.23
5.0.00.0050.0386.23
4.4.90.0050.0154.78
4.4.80.0040.0214.75
4.4.70.0070.0194.75
4.4.60.0050.0204.75
4.4.50.0040.0244.77
4.4.40.0040.0404.71
4.4.30.0050.0194.76
4.4.20.0050.0144.84
4.4.10.0020.0174.85
4.4.00.0060.0224.76
4.3.110.0030.0164.67
4.3.100.0040.0204.66
4.3.90.0030.0144.63
4.3.80.0030.0274.58
4.3.70.0050.0124.63
4.3.60.0030.0154.63
4.3.50.0030.0154.63
4.3.40.0040.0234.53
4.3.30.0010.0173.28
4.3.20.0030.0163.26
4.3.10.0050.0133.22
4.3.00.0100.02715.95

preferences:
50.08 ms | 401 KiB | 5 Q