3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a'=>1,'c'=>5]; $y = array_merge(['a'=>2, 'b'=>4, 'c'=>6], $x); var_dump($y);

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)
8.3.60.0140.00716.50
8.3.50.0090.00917.26
8.3.40.0150.00018.54
8.3.30.0150.00018.54
8.3.20.0080.00018.40
8.3.10.0060.00320.36
8.3.00.0050.00318.88
8.2.180.0140.00716.50
8.2.170.0110.00422.96
8.2.160.0130.00720.40
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00820.39
8.2.110.0070.00321.04
8.2.100.0070.00417.47
8.2.90.0030.00619.34
8.2.80.0040.00419.21
8.2.70.0060.00317.50
8.2.60.0090.00017.91
8.2.50.0040.00418.07
8.2.40.0070.00018.09
8.2.30.0070.00317.84
8.2.20.0030.00619.38
8.2.10.0000.00817.55
8.2.00.0070.00317.73
8.1.280.0140.00725.92
8.1.270.0030.00524.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00022.48
8.1.230.0040.00720.97
8.1.220.0050.00317.76
8.1.210.0000.00818.90
8.1.200.0030.00717.22
8.1.190.0050.00217.50
8.1.180.0040.00418.10
8.1.170.0040.00418.91
8.1.160.0040.00418.76
8.1.150.0040.00418.60
8.1.140.0000.00817.42
8.1.130.0050.00317.81
8.1.120.0050.00217.44
8.1.110.0040.00417.39
8.1.100.0040.00417.39
8.1.90.0000.00817.38
8.1.80.0050.00217.34
8.1.70.0000.00717.35
8.1.60.0090.00017.54
8.1.50.0030.00517.39
8.1.40.0000.00817.48
8.1.30.0040.00417.57
8.1.20.0050.00217.48
8.1.10.0040.00417.46
8.1.00.0050.00517.13
8.0.300.0040.00419.76
8.0.290.0040.00416.63
8.0.280.0000.00718.43
8.0.270.0070.00017.20
8.0.260.0030.00316.66
8.0.250.0040.00416.89
8.0.240.0030.00616.84
8.0.230.0030.00316.77
8.0.220.0000.00716.72
8.0.210.0000.00716.72
8.0.200.0070.00016.79
8.0.190.0040.00416.92
8.0.180.0050.00316.73
8.0.170.0030.00616.80
8.0.160.0000.00716.89
8.0.150.0000.00816.68
8.0.140.0030.00516.79
8.0.130.0000.00613.29
8.0.120.0040.00416.68
8.0.110.0000.00716.87
8.0.100.0040.00416.80
8.0.90.0030.00716.61
8.0.80.0030.01216.83
8.0.70.0030.00516.87
8.0.60.0050.00216.73
8.0.50.0000.00716.62
8.0.30.0090.00917.02
8.0.20.0060.01616.94
8.0.10.0040.00416.94
8.0.00.0110.00716.70
7.4.330.0020.00212.90
7.4.320.0070.00016.54
7.4.300.0030.00316.42
7.4.290.0050.00316.50
7.4.280.0080.00016.38
7.4.270.0030.00316.44
7.4.260.0030.00313.27
7.4.250.0040.00416.39
7.4.240.0040.00416.50
7.4.230.0000.00716.34
7.4.220.0120.00616.32
7.4.210.0080.01116.50
7.4.200.0000.00716.32
7.4.190.0050.00316.61
7.4.160.0140.00316.50
7.4.150.0100.00716.48
7.4.140.0120.00716.31
7.4.130.0120.00616.31
7.4.120.0090.01216.29
7.4.110.0030.01416.33
7.4.100.0110.00616.30
7.4.90.0100.00716.32
7.4.80.0090.00919.39
7.4.70.0150.00316.51
7.4.60.0060.01016.34
7.4.50.0090.00016.30
7.4.40.0070.01116.55
7.4.30.0030.01816.51
7.4.00.0060.00914.97
7.3.330.0030.00312.95
7.3.320.0030.00312.86
7.3.310.0070.00016.00
7.3.300.0030.00316.12
7.3.290.0090.00616.05
7.3.280.0090.01016.09
7.3.270.0090.00916.31
7.3.260.0120.00916.31
7.3.250.0150.00516.23
7.3.240.0100.00616.32
7.3.230.0070.01016.22
7.3.210.0090.00816.21
7.3.200.0180.00016.18
7.3.190.0120.00916.10
7.3.180.0060.00916.07
7.3.170.0030.01716.33
7.3.160.0130.00716.23
7.3.120.0070.01014.76
7.2.330.0090.00916.11
7.2.320.0080.01216.30
7.2.310.0070.01616.52
7.2.300.0100.00716.67
7.2.290.0080.01416.59
7.2.60.0090.01816.53
7.1.200.0070.00615.71
7.1.70.0090.00017.13
7.1.60.0040.00917.13
7.1.50.0030.00916.87
7.1.00.0000.03722.35
7.0.200.0040.01116.56
7.0.140.0000.07722.00
7.0.120.0070.05322.09
7.0.60.0270.07719.90
7.0.50.0100.04317.85
7.0.40.0030.09020.30
7.0.30.0070.05320.04
7.0.20.0130.05320.04
7.0.10.0130.07320.10
7.0.00.0130.05720.08
5.6.210.0200.06320.46
5.6.200.0030.04718.25
5.6.190.0000.08720.60
5.6.180.0100.07720.42
5.6.170.0070.08020.56
5.6.160.0000.05320.52
5.6.150.0000.09020.32
5.6.140.0000.05720.16
5.6.130.0000.05720.33
5.6.120.0070.08020.34
5.6.110.0070.04020.35
5.6.100.0070.04320.09
5.6.90.0070.05020.35
5.6.80.0070.05319.82
5.6.70.0070.07019.77
5.6.60.0100.07719.80
5.6.50.0000.08319.78
5.6.40.0070.06019.76
5.6.30.0070.08019.46
5.6.20.0000.08319.53
5.6.10.0030.04719.67
5.6.00.0030.08019.75
5.5.350.0070.08320.40
5.5.340.0100.08318.01
5.5.330.0130.04720.14
5.5.320.0030.08020.20
5.5.310.0030.07320.45
5.5.300.0100.07320.13
5.5.290.0000.06020.23
5.5.280.0070.08320.08
5.5.270.0070.04320.16
5.5.260.0070.07720.06
5.5.250.0100.08319.98
5.5.240.0000.08319.29
5.5.230.0070.08019.35
5.5.220.0130.07719.55
5.5.210.0030.07019.54
5.5.200.0030.07019.49
5.5.190.0070.06719.32
5.5.180.0030.05319.61
5.5.160.0130.06719.55
5.5.150.0030.08019.61
5.5.140.0070.08019.60
5.5.130.0200.07319.27
5.5.120.0070.07019.47
5.5.110.0100.07319.46
5.5.100.0070.06719.16
5.5.90.0070.06319.22
5.5.80.0230.07719.48
5.5.70.0070.05019.17
5.5.60.0000.07019.21
5.5.50.0070.05019.38
5.5.40.0030.07019.45
5.5.30.0130.03319.28
5.5.20.0030.04719.46
5.5.10.0070.07719.38
5.5.00.0070.03719.44
5.4.450.0000.08319.33
5.4.440.0070.08019.13
5.4.430.0070.06319.23
5.4.420.0000.08019.11
5.4.410.0070.07719.11
5.4.400.0030.05719.01
5.4.390.0030.07719.18
5.4.380.0000.04719.08
5.4.370.0000.07719.16
5.4.360.0100.07318.91
5.4.350.0070.06319.18
5.4.340.0070.07319.16
5.4.320.0130.05319.08
5.4.310.0030.08019.18
5.4.300.0030.05318.80
5.4.290.0000.05318.91
5.4.280.0100.07019.17
5.4.270.0000.08018.91
5.4.260.0070.06318.91
5.4.250.0030.06319.08
5.4.240.0070.05719.07
5.4.230.0030.07719.11
5.4.220.0030.07318.90
5.4.210.0100.07319.14
5.4.200.0100.04319.07
5.4.190.0030.07719.17
5.4.180.0030.07018.93
5.4.170.0070.07719.16
5.4.160.0000.08018.76
5.4.150.0300.05718.76
5.4.140.0030.07716.21
5.4.130.0070.07016.21
5.4.120.0000.04716.36
5.4.110.0030.06716.37
5.4.100.0030.06716.28
5.4.90.0070.06716.36
5.4.80.0000.07016.33
5.4.70.0100.05316.25
5.4.60.0000.05316.26
5.4.50.0070.03716.41
5.4.40.0030.04316.27
5.4.30.0070.03716.38
5.4.20.0130.03716.35
5.4.10.0070.07016.30
5.4.00.0070.07015.70
5.3.290.0030.05314.59
5.3.280.0070.05714.52
5.3.270.0000.07314.59
5.3.260.0030.08314.53
5.3.250.0070.07314.50
5.3.240.0000.08014.54
5.3.230.0030.05314.52
5.3.220.0000.04714.47
5.3.210.0000.07714.58
5.3.200.0000.08014.46
5.3.190.0070.07314.51
5.3.180.0100.06714.38
5.3.170.0030.08014.53
5.3.160.0000.06014.49
5.3.150.0000.05314.50
5.3.140.0000.04714.48
5.3.130.0030.07714.49
5.3.120.0030.06014.36
5.3.110.0070.07714.56
5.3.100.0100.06013.96
5.3.90.0000.06713.96
5.3.80.0030.05313.95
5.3.70.0030.07713.80
5.3.60.0000.06013.97
5.3.50.0000.06713.89
5.3.40.0030.06713.84
5.3.30.0130.06313.83
5.3.20.0070.05013.66
5.3.10.0030.07313.58
5.3.00.0030.07013.45
5.2.170.0000.04312.05
5.2.160.0030.05712.05
5.2.150.0030.05712.05
5.2.140.0030.05712.05
5.2.130.0000.06312.05
5.2.120.0070.05712.05
5.2.110.0000.06312.05
5.2.100.0000.04312.05
5.2.90.0070.04712.05
5.2.80.0000.06712.05
5.2.70.0070.06012.05
5.2.60.0100.06012.05
5.2.50.0000.06312.05
5.2.40.0030.05712.05
5.2.30.0030.06312.05
5.2.20.0000.06012.05
5.2.10.0000.06712.05
5.2.00.0030.06312.05
5.1.60.0000.05712.05
5.1.50.0030.05312.05
5.1.40.0030.04312.05
5.1.30.0030.06012.05
5.1.20.0030.04712.05
5.1.10.0030.05712.05
5.1.00.0000.05012.05
5.0.50.0000.05312.05
5.0.40.0070.04012.05
5.0.30.0070.06312.05
5.0.20.0070.04012.05
5.0.10.0100.03712.05
5.0.00.0000.04312.05
4.4.90.0000.04312.05
4.4.80.0030.03312.05
4.4.70.0030.03312.05
4.4.60.0030.03312.05
4.4.50.0030.03012.05
4.4.40.0000.05312.05
4.4.30.0000.02312.05
4.4.20.0000.03312.05
4.4.10.0000.03312.05
4.4.00.0000.05712.05
4.3.110.0000.03712.05
4.3.100.0030.03312.05
4.3.90.0000.03312.05
4.3.80.0030.02712.05
4.3.70.0030.03012.05
4.3.60.0000.03312.05
4.3.50.0130.01712.05
4.3.40.0000.03312.05
4.3.30.0100.02712.05
4.3.20.0070.03012.05
4.3.10.0000.02712.05
4.3.00.0000.03712.05

preferences:
58.38 ms | 401 KiB | 5 Q