3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(array_merge(["a" => 1, "b" => 2], ["a" => 3, "c" => 4])); ?>

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)
8.3.70.0080.00818.16
8.3.60.0130.00316.38
8.3.50.0070.00921.97
8.3.40.0120.00918.71
8.3.30.0070.00719.04
8.3.20.0040.00420.34
8.3.10.0040.00423.48
8.3.00.0030.00520.86
8.2.180.0130.00616.32
8.2.170.0170.00022.96
8.2.160.0110.00320.52
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0060.00320.89
8.2.110.0060.00322.10
8.2.100.0040.00817.78
8.2.90.0090.00019.09
8.2.80.0000.00817.97
8.2.70.0040.00417.36
8.2.60.0040.00817.38
8.2.50.0030.00618.07
8.2.40.0040.00419.95
8.2.30.0050.00218.13
8.2.20.0000.00717.61
8.2.10.0070.00017.87
8.2.00.0040.00417.47
8.1.280.0070.01025.92
8.1.270.0000.00822.25
8.1.260.0060.00326.35
8.1.250.0000.00728.09
8.1.240.0090.00023.83
8.1.230.0080.00319.01
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0040.00416.97
8.1.180.0000.00818.76
8.1.170.0030.00718.43
8.1.160.0040.00421.82
8.1.150.0040.00418.51
8.1.140.0040.00417.32
8.1.130.0000.00717.75
8.1.120.0000.00717.30
8.1.110.0000.00817.38
8.1.100.0030.00317.21
8.1.90.0000.00817.28
8.1.80.0000.00817.23
8.1.70.0000.00717.29
8.1.60.0000.00717.45
8.1.50.0000.00817.34
8.1.40.0050.00517.28
8.1.30.0040.00417.46
8.1.20.0060.00317.42
8.1.10.0050.00217.41
8.1.00.0040.00417.23
8.0.300.0000.00718.77
8.0.290.0080.00017.05
8.0.280.0040.00418.30
8.0.270.0050.00317.19
8.0.260.0030.00317.14
8.0.250.0000.00716.79
8.0.240.0060.00016.71
8.0.230.0070.00016.70
8.0.220.0000.00716.66
8.0.210.0030.00316.78
8.0.200.0060.00016.77
8.0.190.0000.00716.69
8.0.180.0040.00416.79
8.0.170.0080.00016.84
8.0.160.0030.00316.60
8.0.150.0000.00716.59
8.0.140.0000.00816.75
8.0.130.0030.00313.09
8.0.120.0050.00316.60
8.0.110.0050.00216.75
8.0.100.0040.00416.78
8.0.90.0050.00216.69
8.0.80.0100.00616.80
8.0.70.0070.00016.82
8.0.60.0000.00716.78
8.0.50.0040.00416.80
8.0.30.0100.00716.88
8.0.20.0130.00617.40
8.0.10.0030.00316.74
8.0.00.0090.00816.59
7.4.330.0000.00615.08
7.4.320.0030.00316.50
7.4.300.0030.00316.36
7.4.290.0050.00516.27
7.4.280.0040.00416.46
7.4.270.0030.00516.36
7.4.260.0100.00016.43
7.4.250.0040.00416.33
7.4.240.0020.00516.46
7.4.230.0000.00716.49
7.4.220.0030.01416.41
7.4.210.0060.00916.55
7.4.200.0000.00716.47
7.4.190.0040.00416.56
7.4.160.0040.01216.10
7.4.150.0100.00617.40
7.4.140.0170.00017.86
7.4.130.0080.00916.49
7.4.120.0130.00416.43
7.4.110.0140.00416.45
7.4.100.0060.01216.11
7.4.90.0110.00616.46
7.4.80.0150.00419.39
7.4.70.0030.01316.55
7.4.60.0140.00316.52
7.4.50.0030.00516.06
7.4.40.0060.01016.37
7.4.30.0060.01316.30
7.4.00.0030.01015.04
7.3.330.0000.00712.86
7.3.320.0030.00312.95
7.3.310.0040.00416.21
7.3.300.0070.00015.97
7.3.290.0160.00316.16
7.3.280.0100.00816.15
7.3.270.0140.00317.40
7.3.260.0120.00416.48
7.3.250.0130.00716.08
7.3.240.0100.01016.31
7.3.230.0080.00816.39
7.3.210.0060.01516.09
7.3.200.0070.01119.39
7.3.190.0170.00016.15
7.3.180.0100.00616.07
7.3.170.0030.01616.27
7.3.160.0090.00916.14
7.3.120.0060.01014.68
7.2.330.0090.00916.22
7.2.320.0090.00916.32
7.2.310.0060.01116.52
7.2.300.0070.01016.45
7.2.290.0070.01516.40
7.2.00.0030.01019.18
7.1.100.0040.00418.05
7.1.70.0110.00816.89
7.1.60.0100.01419.70
7.1.50.0070.00416.86
7.1.00.0030.09322.43
7.0.200.0040.00816.57
7.0.140.0030.07322.12
7.0.60.0200.06019.87
7.0.50.0070.08017.82
7.0.40.0070.05720.12
7.0.30.0300.07720.18
7.0.20.0370.06720.20
7.0.10.0030.07020.01
7.0.00.0000.04320.34
5.6.280.0100.06320.90
5.6.210.0070.07320.64
5.6.200.0070.04018.16
5.6.190.0030.08720.61
5.6.180.0170.05020.33
5.6.170.0400.04720.40
5.6.160.0000.04720.48
5.6.150.0200.06318.17
5.6.140.0030.08318.07
5.6.130.0070.04018.21
5.6.120.0170.05020.98
5.6.110.0070.08321.00
5.6.100.0100.08320.94
5.6.90.0030.09021.09
5.6.80.0070.07720.30
5.5.350.3930.03720.42
5.5.340.0100.07718.02
5.5.330.0100.07320.43
5.5.320.0200.04020.17
5.5.310.0130.04020.31
5.5.300.0100.03317.92
5.5.290.0030.08317.98
5.5.280.0070.04720.76
5.5.270.0000.04320.88
5.5.260.0130.06720.60
5.5.250.0100.05020.54
5.5.240.0000.07720.27
5.4.450.0170.04726.08
5.4.440.0300.04325.72
5.4.430.0300.04025.29
5.4.420.0130.05026.08
5.4.410.0300.04025.28
5.4.400.0170.04020.86
5.4.390.0270.04319.79
5.4.380.0200.04718.72
5.4.370.0170.05018.44
5.4.360.0130.05018.56
5.4.350.0100.05718.69
5.4.340.0130.05318.67
5.4.320.0050.04312.45
5.4.310.0030.04312.45
5.4.300.0120.04812.45
5.4.290.0100.05612.45
5.4.280.0070.05712.35
5.4.270.0100.05212.34
5.4.260.0110.05612.35
5.4.250.0070.05612.35
5.4.240.0080.04912.35
5.4.230.0110.05212.34
5.4.220.0070.05512.34
5.4.210.0090.05212.34
5.4.200.0120.05112.34
5.4.190.0030.05412.33
5.4.180.0100.04912.34
5.4.170.0080.05212.34
5.4.160.0070.04812.34
5.4.150.0060.05312.34
5.4.140.0080.05212.02
5.4.130.0120.04212.01
5.4.120.0110.05511.97
5.4.110.0130.05011.96
5.4.100.0090.04911.97
5.4.90.0120.05311.96
5.4.80.0240.04911.96
5.4.70.0240.07311.96
5.4.60.0200.05911.96
5.4.50.0280.05611.96
5.4.40.0140.05011.95
5.4.30.0110.04511.95
5.4.20.0080.04511.95
5.4.10.0080.04311.94
5.4.00.0050.05111.43
5.3.290.0050.04112.80
5.3.280.0090.04812.71
5.3.270.0090.05712.72
5.3.260.0130.05012.72
5.3.250.0120.05312.72
5.3.240.0090.05812.72
5.3.230.0120.05612.71
5.3.220.0050.06112.68
5.3.210.0120.05912.68
5.3.200.0080.05612.68
5.3.190.0050.06012.68
5.3.180.0130.05312.68
5.3.170.0100.05612.67
5.3.160.0070.05712.68
5.3.150.0090.05812.67
5.3.140.0070.05812.66
5.3.130.0110.05312.66
5.3.120.0090.05612.66
5.3.110.0110.05612.65
5.3.100.0070.05412.12
5.3.90.0110.05212.08
5.3.80.0100.05212.08
5.3.70.0100.05212.08
5.3.60.0100.06112.07
5.3.50.0200.06412.00
5.3.40.0210.05812.00
5.3.30.0270.05711.95
5.3.20.0260.05211.73
5.3.10.0120.06111.70
5.3.00.0200.05511.68
5.2.170.0070.0519.18
5.2.160.0080.0369.18
5.2.150.0110.0419.18
5.2.140.0080.0349.18
5.2.130.0050.0479.14
5.2.120.0050.0359.14
5.2.110.0080.0409.15
5.2.100.0200.0419.14
5.2.90.0130.0439.14
5.2.80.0140.0359.14
5.2.70.0080.0389.14
5.2.60.0310.0669.09
5.2.50.0080.0509.05
5.2.40.0260.0349.04
5.2.30.0150.0479.02
5.2.20.0180.0409.01
5.2.10.0130.0408.93
5.2.00.0140.0608.78
5.1.60.0110.0358.07
5.1.50.0040.0388.07
5.1.40.0080.0318.05
5.1.30.0090.0338.40
5.1.20.0060.0368.42
5.1.10.0040.0358.14
5.1.00.0090.0338.14
5.0.50.0140.0316.62
5.0.40.0190.0396.47
5.0.30.0130.0576.29
5.0.20.0050.0306.27
5.0.10.0230.0286.23
5.0.00.0090.0466.23
4.4.90.0060.0304.78
4.4.80.0130.0294.75
4.4.70.0290.0174.75
4.4.60.0070.0234.75
4.4.50.0040.0254.77
4.4.40.0060.0354.71
4.4.30.0090.0194.76
4.4.20.0070.0224.84
4.4.10.0050.0234.85
4.4.00.0020.0384.76
4.3.110.0020.0274.67
4.3.100.0050.0184.66
4.3.90.0030.0174.64
4.3.80.0150.0404.58
4.3.70.0060.0174.63
4.3.60.0050.0234.63
4.3.50.0050.0244.63
4.3.40.0050.0314.54
4.3.30.0060.0153.29
4.3.20.0010.0193.27
4.3.10.0050.0223.22
4.3.00.0070.01718.68

preferences:
65.74 ms | 401 KiB | 5 Q