3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = [1=>1, 2=>2, 3=>3]; $bar = [1=>1, 2=>2, 3=>3]; var_dump($foo); var_dump($bar); var_dump(array_merge($foo, $bar));

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)
8.3.60.0110.00416.63
8.3.50.0110.00522.85
8.3.40.0100.01018.42
8.3.30.0070.00718.81
8.3.20.0040.00420.26
8.3.10.0080.00023.66
8.3.00.0080.00019.25
8.2.180.0140.00718.06
8.2.170.0070.01422.96
8.2.160.0160.00020.31
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00021.04
8.2.110.0000.01022.11
8.2.100.0110.00018.03
8.2.90.0040.00419.05
8.2.80.0000.00817.97
8.2.70.0050.00317.50
8.2.60.0000.00717.80
8.2.50.0060.00318.07
8.2.40.0030.00618.13
8.2.30.0040.00418.03
8.2.20.0040.00417.50
8.2.10.0000.00817.90
8.2.00.0040.00417.61
8.1.280.0090.00925.92
8.1.270.0000.00823.96
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00023.96
8.1.230.0110.00018.97
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0070.00317.13
8.1.190.0040.00417.00
8.1.180.0000.00818.10
8.1.170.0070.00318.66
8.1.160.0020.00521.92
8.1.150.0040.00418.72
8.1.140.0000.00817.36
8.1.130.0000.00717.80
8.1.120.0030.00317.44
8.1.110.0000.00717.38
8.1.100.0000.00817.40
8.1.90.0040.00417.37
8.1.80.0030.00517.37
8.1.70.0000.00817.26
8.1.60.0000.00917.41
8.1.50.0050.00317.38
8.1.40.0000.00717.39
8.1.30.0050.00317.32
8.1.20.0040.00417.57
8.1.10.0050.00217.32
8.1.00.0040.00417.37
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.29
8.0.270.0000.00717.18
8.0.260.0030.00317.18
8.0.250.0030.00316.85
8.0.240.0030.00316.79
8.0.230.0000.00716.86
8.0.220.0000.00716.70
8.0.210.0000.00816.88
8.0.200.0000.00816.79
8.0.190.0030.00516.90
8.0.180.0040.00416.85
8.0.170.0080.00016.88
8.0.160.0000.00716.73
8.0.150.0000.00716.71
8.0.140.0000.00816.58
8.0.130.0000.00513.25
8.0.120.0040.00416.75
8.0.110.0050.00316.75
8.0.100.0000.00816.68
8.0.90.0040.00416.70
8.0.80.0080.00816.76
8.0.70.0040.00416.77
8.0.60.0000.00816.70
8.0.50.0000.00716.75
8.0.30.0090.01117.03
8.0.20.0110.00817.40
8.0.10.0070.00016.84
8.0.00.0030.01716.51
7.4.330.0000.00515.03
7.4.320.0070.00016.29
7.4.300.0030.00316.47
7.4.290.0040.00416.44
7.4.280.0000.00716.56
7.4.270.0040.00416.54
7.4.260.0040.00416.45
7.4.250.0050.00316.35
7.4.240.0030.00516.50
7.4.230.0070.00016.55
7.4.220.0130.01316.54
7.4.210.0070.00716.47
7.4.200.0040.00416.47
7.4.160.0130.00316.23
7.4.150.0100.00917.40
7.4.140.0150.00517.86
7.4.130.0110.00716.45
7.4.120.0130.00416.43
7.4.110.0100.00716.34
7.4.100.0110.01116.41
7.4.90.0080.00816.31
7.4.80.0040.01319.39
7.4.70.0080.00816.38
7.4.60.0160.00016.41
7.4.50.0080.00016.41
7.4.40.0030.01616.41
7.4.30.0060.01016.48
7.4.00.0000.01514.92
7.3.330.0050.00012.88
7.3.320.0030.00212.97
7.3.310.0000.00716.12
7.3.300.0030.00316.12
7.3.290.0120.00316.19
7.3.280.0100.00416.14
7.3.270.0030.01417.40
7.3.260.0150.00316.23
7.3.250.0090.00916.42
7.3.240.0110.01016.31
7.3.230.0080.00816.50
7.3.210.0100.01016.04
7.3.200.0030.01316.11
7.3.190.0060.01216.34
7.3.180.0000.01516.21
7.3.170.0070.01016.27
7.3.160.0130.00316.29
7.2.330.0080.01216.59
7.2.320.0100.01316.32
7.2.310.0070.01016.30
7.2.300.0100.01616.39
7.2.290.0080.00816.23
7.2.60.0100.00316.78
7.2.00.0100.00319.04
7.1.200.0030.01015.73
7.1.100.0030.01018.04
7.1.70.0050.00217.04
7.1.60.0070.01719.46
7.1.50.0070.00716.91
7.1.00.0000.08022.51
7.0.200.0040.00416.62
7.0.140.0070.07022.00
7.0.60.0170.07719.78
7.0.50.0130.07317.88
7.0.40.0130.07320.02
7.0.30.0270.04720.00
7.0.20.0200.08320.16
7.0.10.0070.04020.23
7.0.00.0030.04720.20
5.6.280.0030.07321.07
5.6.210.0130.07720.47
5.6.200.0030.04018.23
5.6.190.0000.04720.43
5.6.180.0170.05320.36
5.6.170.0030.05320.71
5.6.160.0030.04320.40
5.6.150.0030.04318.12
5.6.140.0100.05318.21
5.6.130.0100.08018.13
5.6.120.0070.07720.96
5.6.110.0170.07020.98
5.6.100.0030.08720.98
5.6.90.0100.08321.00
5.6.80.0100.07720.46
5.5.350.0330.05720.34
5.5.340.0070.03718.02
5.5.330.0100.05720.47
5.5.320.0170.04020.30
5.5.310.0200.05320.27
5.5.300.0030.04018.02
5.5.290.0070.08017.97
5.5.280.0030.08720.64
5.5.270.0070.05320.86
5.5.260.0070.08320.76
5.5.250.0100.09020.66
5.5.240.0070.06320.19
5.4.450.0200.04719.49
5.4.440.0330.04319.56
5.4.430.0330.04019.24
5.4.420.0300.03719.56
5.4.410.0330.04319.12
5.4.400.0600.04319.14
5.4.390.0330.04719.09
5.4.380.0330.05318.67
5.4.370.0230.06018.62
5.4.360.0300.05718.56
5.4.350.0370.05718.71
5.4.340.0430.06318.79
5.4.320.0070.03312.45
5.4.310.0070.04412.45
5.4.300.0040.03812.46
5.4.290.0040.03812.45
5.4.280.0070.04112.35
5.4.270.0050.03712.35
5.4.260.0080.03412.35
5.4.250.0030.04112.35
5.4.240.0060.03612.35
5.4.230.0060.03612.34
5.4.220.0020.03912.34
5.4.210.0060.03312.34
5.4.200.0030.03712.34
5.4.190.0060.04112.34
5.4.180.0070.03912.34
5.4.170.0050.04312.35
5.4.160.0070.03412.34
5.4.150.0080.03712.34
5.4.140.0060.04212.03
5.4.130.0050.04312.02
5.4.120.0040.03611.97
5.4.110.0070.03611.97
5.4.100.0080.03611.96
5.4.90.0080.03811.97
5.4.80.0080.03611.97
5.4.70.0050.04411.96
5.4.60.0110.03511.96
5.4.50.0050.04811.96
5.4.40.0050.03611.95
5.4.30.0070.03311.95
5.4.20.0090.03511.95
5.4.10.0090.04311.95
5.4.00.0020.04511.44
5.3.290.0050.04012.80
5.3.280.0090.03712.71
5.3.270.0080.04112.72
5.3.260.0090.03812.72
5.3.250.0100.03312.72
5.3.240.0060.03612.72
5.3.230.0050.03812.71
5.3.220.0070.03412.68
5.3.210.0050.03912.68
5.3.200.0090.04312.68
5.3.190.0060.04212.68
5.3.180.0100.03712.67
5.3.170.0070.03612.67
5.3.160.0100.04112.67
5.3.150.0050.03612.67
5.3.140.0090.03612.66
5.3.130.0080.04312.66
5.3.120.0070.03612.66
5.3.110.0090.03512.66
5.3.100.0030.03912.12
5.3.90.0070.03412.08
5.3.80.0060.03612.08
5.3.70.0040.04012.07
5.3.60.0060.03612.06
5.3.50.0070.03312.00
5.3.40.0070.03512.00
5.3.30.0070.03311.95
5.3.20.0060.03411.72
5.3.10.0060.03411.70
5.3.00.0030.03811.68
5.2.170.0080.0279.18
5.2.160.0040.0299.18
5.2.150.0070.0279.18
5.2.140.0050.0309.17
5.2.130.0060.0279.14
5.2.120.0050.0279.14
5.2.110.0030.0299.14
5.2.100.0060.0269.14
5.2.90.0030.0309.14
5.2.80.0050.0319.14
5.2.70.0060.0329.14
5.2.60.0070.0289.09
5.2.50.0040.0309.05
5.2.40.0040.0289.04
5.2.30.0050.0299.01
5.2.20.0060.0269.00
5.2.10.0050.0288.92
5.2.00.0050.0288.78
5.1.60.0030.0248.07
5.1.50.0060.0238.07
5.1.40.0050.0228.05
5.1.30.0060.0248.39
5.1.20.0070.0238.42
5.1.10.0020.0278.14
5.1.00.0040.0258.14
5.0.50.0020.0216.62
5.0.40.0030.0196.48
5.0.30.0060.0286.29
5.0.20.0030.0246.26
5.0.10.0040.0266.24
5.0.00.0020.0316.23
4.4.90.0050.0154.78
4.4.80.0020.0254.76
4.4.70.0020.0154.75
4.4.60.0040.0134.76
4.4.50.0020.0154.77
4.4.40.0040.0304.70
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0030.0174.85
4.4.00.0030.0264.76
4.3.110.0010.0254.67
4.3.100.0010.0174.66
4.3.90.0050.0154.64
4.3.80.0060.0254.58
4.3.70.0030.0154.63
4.3.60.0020.0164.63
4.3.50.0020.0254.63
4.3.40.0040.0284.54
4.3.30.0040.0193.28
4.3.20.0020.0193.26
4.3.10.0020.0153.22
4.3.00.0030.01715.68

preferences:
37.26 ms | 401 KiB | 5 Q