3v4l.org

run code in 300+ PHP versions simultaneously
<?phpvar_dump(array_merge_recursive( array('dupa' => array( 1,2,3 )), array('dupa' => null)));

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)
8.3.60.0040.01118.40
8.3.50.0100.00522.93
8.3.40.0110.00418.73
8.3.30.0100.00318.91
8.3.20.0040.00420.04
8.3.10.0050.00321.60
8.3.00.0040.00419.13
8.2.180.0090.00616.38
8.2.170.0120.00322.96
8.2.160.0070.01020.53
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0070.00020.94
8.2.110.0060.00321.04
8.2.100.0090.00317.72
8.2.90.0030.00517.78
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0060.00317.93
8.2.50.0040.00418.07
8.2.40.0070.00018.03
8.2.30.0050.00317.91
8.2.20.0080.00017.60
8.2.10.0040.00417.98
8.2.00.0000.00717.42
8.1.280.0060.00925.92
8.1.270.0060.00623.99
8.1.260.0030.00526.35
8.1.250.0000.00828.09
8.1.240.0080.00321.89
8.1.230.0060.00620.82
8.1.220.0000.00817.74
8.1.210.0040.00418.85
8.1.200.0000.00916.97
8.1.190.0090.00017.00
8.1.180.0000.00818.10
8.1.170.0030.00518.64
8.1.160.0050.00321.97
8.1.150.0020.00518.76
8.1.140.0040.00417.19
8.1.130.0030.00317.63
8.1.120.0070.00017.22
8.1.110.0030.00517.31
8.1.100.0040.00417.31
8.1.90.0000.00717.17
8.1.80.0050.00317.30
8.1.70.0030.00517.25
8.1.60.0000.00917.37
8.1.50.0040.00417.26
8.1.40.0000.00717.36
8.1.30.0040.00417.48
8.1.20.0030.00617.49
8.1.10.0000.00817.47
8.1.00.0000.00817.42
8.0.300.0030.00519.82
8.0.290.0040.00416.63
8.0.280.0030.00318.40
8.0.270.0050.00217.23
8.0.260.0000.00617.11
8.0.250.0000.00716.81
8.0.240.0000.00616.73
8.0.230.0000.00716.70
8.0.220.0040.00416.80
8.0.210.0040.00416.73
8.0.200.0030.00316.80
8.0.190.0040.00416.85
8.0.180.0000.00716.80
8.0.170.0080.00016.82
8.0.160.0050.00316.69
8.0.150.0000.00816.63
8.0.140.0080.00316.63
8.0.130.0000.00513.32
8.0.120.0050.00316.72
8.0.110.0040.00416.60
8.0.100.0000.00816.62
8.0.90.0080.00016.73
8.0.80.0100.00716.64
8.0.70.0030.00516.63
8.0.60.0000.00716.62
8.0.50.0000.00816.61
8.0.30.0120.00816.83
8.0.20.0120.01217.40
8.0.10.0040.00416.89
8.0.00.0090.00916.73
7.4.330.0020.00215.00
7.4.320.0060.00016.34
7.4.300.0040.00416.36
7.4.290.0030.00316.37
7.4.280.0040.00416.36
7.4.270.0000.00716.45
7.4.260.0030.00316.44
7.4.250.0050.00216.35
7.4.240.0040.00316.44
7.4.230.0000.00716.53
7.4.220.0180.00716.47
7.4.210.0070.01516.32
7.4.200.0030.00316.16
7.4.160.0100.01016.42
7.4.150.0100.00717.40
7.4.140.0090.00917.86
7.4.130.0090.01216.33
7.4.120.0070.00916.38
7.4.110.0030.01316.50
7.4.100.0130.00316.38
7.4.90.0030.01416.23
7.4.80.0070.01619.39
7.4.70.0060.01616.29
7.4.60.0030.01716.41
7.4.50.0050.00316.05
7.4.40.0070.01016.48
7.4.30.0070.01316.51
7.4.00.0040.01214.75
7.3.330.0000.00613.19
7.3.320.0060.00013.12
7.3.310.0030.00316.18
7.3.300.0000.00816.17
7.3.290.0060.00616.16
7.3.280.0060.01016.11
7.3.270.0070.01017.40
7.3.260.0060.01516.25
7.3.250.0120.00616.27
7.3.240.0130.00316.40
7.3.230.0140.00316.39
7.3.210.0090.00916.34
7.3.200.0100.00619.39
7.3.190.0170.00316.08
7.3.180.0080.00816.44
7.3.170.0060.01016.27
7.3.160.0090.00916.13
7.2.330.0150.00616.57
7.2.320.0070.01816.44
7.2.310.0130.00816.45
7.2.300.0060.00916.55
7.2.290.0100.00716.28
7.2.80.0000.01116.43
7.2.60.0060.00616.81
7.2.00.0030.00919.35
7.1.200.0030.00915.67
7.1.100.0070.00417.79
7.1.70.0040.00416.91
7.1.60.0110.01419.40
7.1.50.0110.01116.71
7.1.00.0000.08022.27
7.0.200.0000.00716.57
7.0.140.0000.07322.07
7.0.60.0070.04020.00
7.0.50.0170.07317.87
7.0.40.0070.07320.28
7.0.30.0600.06320.16
7.0.20.0200.06320.20
7.0.10.0300.04020.09
7.0.00.0070.08720.00
5.6.280.0000.07720.77
5.6.210.0130.06720.47
5.6.200.0070.08718.08
5.6.190.0170.07020.41
5.6.180.0230.05020.35
5.6.170.0270.05020.48
5.6.160.0100.07020.50
5.6.150.0030.06318.22
5.6.140.0070.07718.18
5.6.130.0070.08018.17
5.6.120.0070.05320.96
5.6.110.0030.04321.13
5.6.100.0100.05321.00
5.6.90.0100.03321.08
5.6.80.0100.04320.50
5.6.70.4500.03720.29
5.5.350.0100.07720.46
5.5.340.0000.05317.96
5.5.330.0030.04320.07
5.5.320.0430.07720.34
5.5.310.0230.06320.21
5.5.300.0070.05017.91
5.5.290.0030.04017.95
5.5.280.0000.04320.77
5.5.270.0100.03320.79
5.5.260.0130.07320.72
5.5.250.0000.04720.68
5.5.240.0270.07720.27
5.4.450.0330.04319.43
5.4.440.0270.04319.46
5.4.430.0900.05019.45
5.4.420.0370.04319.20
5.4.410.0230.05019.41
5.4.400.0700.03318.90
5.4.390.0570.05019.10
5.4.380.0900.04018.50
5.4.370.0870.05718.50
5.4.360.0730.05018.50
5.4.350.1730.07018.50
5.4.340.0930.04718.66
5.4.320.0030.03912.45
5.4.310.0080.04912.45
5.4.300.0030.03812.45
5.4.290.0050.04012.45
5.4.280.0050.04212.35
5.4.270.0060.04712.35
5.4.260.0070.03712.34
5.4.250.0110.03212.34
5.4.240.0070.03412.35
5.4.230.0050.03812.34
5.4.220.0070.04412.34
5.4.210.0050.03512.33
5.4.200.0050.03712.34
5.4.190.0150.04312.33
5.4.180.0050.03712.33
5.4.170.0110.03012.34
5.4.160.0060.03512.34
5.4.150.0050.03712.34
5.4.140.0070.03412.02
5.4.130.0040.03612.01
5.4.120.0040.03711.97
5.4.110.0040.03711.96
5.4.100.0040.03611.96
5.4.90.0090.03511.96
5.4.80.0070.03711.96
5.4.70.0050.03511.96
5.4.60.0060.03411.96
5.4.50.0040.04111.96
5.4.40.0080.03611.95
5.4.30.0080.04511.95
5.4.20.0060.04911.95
5.4.10.0060.03411.95
5.4.00.0040.03811.43
5.3.290.0080.03712.80
5.3.280.0070.04912.70
5.3.270.0060.03912.72
5.3.260.0070.03812.72
5.3.250.0080.03512.71
5.3.240.0040.03912.72
5.3.230.0030.04012.71
5.3.220.0070.03512.68
5.3.210.0050.03912.68
5.3.200.0040.03812.68
5.3.190.0070.03712.68
5.3.180.0060.03712.67
5.3.170.0050.03712.67
5.3.160.0060.03712.67
5.3.150.0070.03712.67
5.3.140.0080.03312.66
5.3.130.0060.03912.66
5.3.120.0050.03912.66
5.3.110.0090.04512.66
5.3.100.0040.03812.12
5.3.90.0060.03712.08
5.3.80.0050.03712.07
5.3.70.0080.03712.07
5.3.60.0050.03712.07
5.3.50.0050.03812.00
5.3.40.0050.03712.00
5.3.30.0080.04711.94
5.3.20.0070.03511.72
5.3.10.0020.03811.69
5.3.00.0030.03911.67
5.2.170.0050.0299.18
5.2.160.0060.0289.17
5.2.150.0040.0309.17
5.2.140.0070.0279.17
5.2.130.0040.0309.13
5.2.120.0030.0299.13
5.2.110.0080.0259.14
5.2.100.0030.0299.13
5.2.90.0020.0319.13
5.2.80.0040.0319.13
5.2.70.0070.0409.13
5.2.60.0030.0319.08
5.2.50.0050.0299.05
5.2.40.0070.0269.03
5.2.30.0030.0319.01
5.2.20.0060.0279.00
5.2.10.0040.0298.92
5.2.00.0030.0408.77
5.1.60.0040.0248.06
5.1.50.0040.0258.05
5.1.40.0050.0258.04
5.1.30.0050.0308.39
5.1.20.0040.0278.41
5.1.10.0010.0288.13
5.1.00.0030.0268.13
5.0.50.0060.0186.61
5.0.40.0040.0196.47
5.0.30.0040.0306.29
5.0.20.0020.0226.26
5.0.10.0050.0186.23
5.0.00.0060.0286.22
4.4.90.0010.0174.78
4.4.80.0040.0144.75
4.4.70.0040.0144.76
4.4.60.0030.0154.75
4.4.50.0020.0154.77
4.4.40.0030.0244.71
4.4.30.0030.0154.76
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0020.0254.76
4.3.110.0030.0154.67
4.3.100.0020.0154.67
4.3.90.0010.0164.64
4.3.80.0010.0254.58
4.3.70.0030.0194.63
4.3.60.0040.0134.63
4.3.50.0030.0144.63
4.3.40.0040.0244.54
4.3.30.0020.0163.27
4.3.20.0050.0183.26
4.3.10.0030.0143.21
4.3.00.0130.01715.91

preferences:
43.16 ms | 401 KiB | 5 Q