3v4l.org

run code in 300+ PHP versions simultaneously
<?php $base = ['one' => 10]; $arr1 = ['one' => 1, 'two' => 2]; $arr2 = ['three' => 3]; var_dump(array_merge($arr1, $arr2, $base)); var_dump(array_diff_assoc(array_merge($arr1, $arr2)), $base);

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)
8.3.60.0110.01118.31
8.3.50.0110.01021.98
8.3.40.0110.00418.58
8.3.30.0040.01118.80
8.3.20.0040.00420.30
8.3.10.0080.00021.71
8.3.00.0000.00817.38
8.2.180.0070.00716.32
8.2.170.0040.01422.96
8.2.160.0080.00520.32
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0050.00319.11
8.2.110.0100.00020.92
8.2.100.0090.00317.63
8.2.90.0040.00419.09
8.2.80.0080.00017.97
8.2.70.0050.00317.50
8.2.60.0000.00817.80
8.2.50.0030.00518.07
8.2.40.0030.00519.82
8.2.30.0000.00718.04
8.2.20.0000.00717.48
8.2.10.0040.00418.10
8.2.00.0030.00518.09
8.1.280.0070.00725.92
8.1.270.0080.00020.36
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00422.71
8.1.230.0080.00417.42
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0050.00517.23
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0000.00820.19
8.1.160.0020.00521.86
8.1.150.0040.00418.81
8.1.140.0040.00417.29
8.1.130.0000.00717.69
8.1.120.0030.00317.28
8.1.110.0040.00317.28
8.1.100.0030.00417.27
8.1.90.0040.00417.30
8.1.80.0060.00317.38
8.1.70.0030.00317.42
8.1.60.0050.00517.47
8.1.50.0040.00417.43
8.1.40.0080.00017.46
8.1.30.0000.00817.41
8.1.20.0030.00617.64
8.1.10.0040.00417.43
8.1.00.0050.00317.29
8.0.300.0040.00418.77
8.0.290.0030.00316.63
8.0.280.0000.00818.43
8.0.270.0000.00717.19
8.0.260.0030.00317.10
8.0.250.0040.00416.93
8.0.240.0030.00516.94
8.0.230.0100.00016.75
8.0.220.0060.00016.69
8.0.210.0030.00316.80
8.0.200.0060.00016.92
8.0.190.0030.00616.76
8.0.180.0050.00316.76
8.0.170.0040.00416.75
8.0.160.0040.00416.79
8.0.150.0040.00416.65
8.0.140.0030.00516.75
8.0.130.0040.00413.20
8.0.120.0040.00416.77
8.0.110.0050.00316.84
8.0.100.0050.00216.71
8.0.90.0050.00216.73
8.0.80.0060.00916.80
8.0.70.0040.00416.90
8.0.60.0000.00716.88
8.0.50.0000.00716.88
8.0.30.0110.01417.11
8.0.20.0070.01217.40
8.0.10.0040.00416.80
8.0.00.0100.00816.64
7.4.330.0030.00315.03
7.4.320.0030.00316.53
7.4.300.0070.00016.54
7.4.290.0080.00316.42
7.4.280.0030.00616.34
7.4.270.0040.00416.58
7.4.260.0000.00716.49
7.4.250.0000.00716.41
7.4.240.0030.00316.48
7.4.230.0030.00316.53
7.4.220.0090.01016.58
7.4.210.0090.00616.43
7.4.200.0030.00316.24
7.4.160.0080.00816.59
7.4.150.0120.00617.40
7.4.140.0110.01317.86
7.4.130.0030.01516.48
7.4.120.0120.00516.51
7.4.110.0120.01116.41
7.4.100.0100.01016.55
7.4.90.0130.01016.45
7.4.80.0090.00919.39
7.4.70.0100.00716.60
7.4.60.0120.00416.22
7.4.50.0000.00916.56
7.4.40.0090.01416.45
7.4.30.0130.00316.52
7.4.00.0070.00714.90
7.3.330.0000.00512.95
7.3.320.0170.00012.98
7.3.310.0050.00316.24
7.3.300.0030.00316.21
7.3.290.0070.01016.24
7.3.280.0090.00716.18
7.3.270.0130.00317.40
7.3.260.0190.00616.33
7.3.250.0130.00616.12
7.3.240.0150.00316.46
7.3.230.0160.00616.39
7.3.210.0090.00916.21
7.3.200.0100.01019.39
7.3.190.0130.00316.26
7.3.180.0110.00516.30
7.3.170.0030.01616.44
7.3.160.0080.00816.37
7.2.330.0120.00916.41
7.2.320.0150.00916.44
7.2.310.0090.00916.60
7.2.300.0060.01116.29
7.2.290.0130.00716.48
7.2.80.0030.00716.50
7.2.60.0070.00316.72
7.2.00.0000.01219.05
7.1.200.0080.00615.73
7.1.100.0940.01015.81
7.1.70.0030.00716.95
7.1.60.0100.01319.50
7.1.50.0300.01634.56
7.1.00.0100.07022.37
7.0.200.0200.00316.40
7.0.140.0030.04021.90
7.0.110.0070.08019.96
7.0.100.0100.03319.97
7.0.90.0100.03719.94
7.0.80.0130.07319.92
7.0.70.0070.05320.06
7.0.60.0030.08020.03
7.0.50.0030.08019.93
7.0.40.0030.04319.68
7.0.30.0230.06019.75
7.0.20.0130.07719.84
7.0.10.0130.06719.61
7.0.00.0130.07319.86
5.6.280.0000.07721.05
5.6.260.0000.08320.74
5.6.250.0100.07320.68
5.6.240.0100.08320.69
5.6.230.0100.08020.54
5.6.220.0100.07720.64
5.6.210.0030.08320.57
5.6.200.0030.05720.85
5.6.190.0070.06720.66
5.6.180.0100.08020.64
5.6.170.0200.06720.64
5.6.160.0070.04020.55
5.6.150.0000.07320.70
5.6.140.0100.05020.64
5.6.130.0100.08020.68
5.6.120.0100.08020.67
5.6.110.0030.07020.57
5.6.100.0070.08320.54
5.6.90.0130.07020.68
5.6.80.0130.07019.93
5.6.70.0070.06719.98
5.6.60.0100.06320.02
5.6.50.0030.04720.00
5.6.40.0070.04720.00
5.6.30.0000.04320.04
5.6.20.0030.04719.90
5.6.10.0030.06719.82
5.6.00.0070.07719.96
5.5.380.0000.04317.66
5.5.370.0030.05017.52
5.5.360.0070.07717.62
5.5.350.0000.05017.40
5.5.340.0070.07717.85
5.5.330.0130.04717.89
5.5.320.0070.08017.99
5.5.310.0130.07718.14
5.5.300.0130.07017.89
5.5.290.0070.05018.15
5.5.280.0130.04017.86
5.5.270.0100.06017.89
5.5.260.0170.07318.11
5.5.250.0030.07717.94
5.5.240.0130.07717.23
5.5.230.0030.07317.23
5.5.220.0070.04317.54
5.5.210.0070.06317.47
5.5.200.0100.07317.45
5.5.190.0030.05317.36
5.5.180.0100.03717.13
5.5.160.0030.04317.38
5.5.150.0070.07017.24
5.5.140.0070.03717.19
5.5.130.0030.05017.37
5.5.120.0030.08317.21
5.5.110.0030.04017.37
5.5.100.0030.05717.10
5.5.90.0070.03317.14
5.5.80.0000.04017.37
5.5.70.0070.07017.25
5.5.60.0130.03017.49
5.5.50.0100.06317.23
5.5.40.0070.07017.37
5.5.30.0070.07717.25
5.5.20.0130.06717.09
5.5.10.0070.07317.39
5.5.00.0100.03317.25
5.4.450.0070.08019.40
5.4.440.0030.04019.58
5.4.430.0070.08019.27
5.4.420.0100.07319.59
5.4.410.0130.07019.38
5.4.400.0070.06719.13
5.4.390.0000.04319.08
5.4.380.0070.05319.07
5.4.370.0000.04719.02
5.4.360.0000.06718.95
5.4.350.0070.03718.96
5.4.340.0100.05019.25
5.4.320.0130.08719.10
5.4.310.0030.07019.03
5.4.300.0000.04018.98
5.4.290.0030.05719.18
5.4.280.0000.04018.93
5.4.270.0070.04019.13
5.4.260.0070.03319.07
5.4.250.0030.03718.99
5.4.240.0030.04019.07
5.4.230.0070.03318.96
5.4.220.0170.03319.17
5.4.210.0030.07719.07
5.4.200.0030.07319.00
5.4.190.0070.04718.99
5.4.180.0100.03719.02
5.4.170.0130.06718.94
5.4.160.0130.07019.25
5.4.150.0070.06319.05
5.4.140.0070.04716.24
5.4.130.0070.05316.18
5.4.120.0030.07316.18
5.4.110.0000.07316.19
5.4.100.0130.03716.28
5.4.90.0100.04316.29
5.4.80.0030.04016.19
5.4.70.0100.06016.11
5.4.60.0030.06716.47
5.4.50.0070.04716.33
5.4.40.0070.04016.26
5.4.30.0030.07016.48
5.4.20.0070.06716.58
5.4.10.0070.07016.47
5.4.00.0070.07015.93
5.3.290.0100.06014.59
5.3.280.0000.03314.48
5.3.270.0070.07714.62
5.3.260.0070.06714.48
5.3.250.0030.07714.51
5.3.240.0030.04014.63
5.3.230.0030.06314.68
5.3.220.0100.04014.63
5.3.210.0030.04314.58
5.3.200.0100.05314.42
5.3.190.0000.04314.41
5.3.180.0100.04714.66
5.3.170.0070.03714.49
5.3.160.0100.07314.57
5.3.150.0130.06314.55
5.3.140.0000.06714.39
5.3.130.0000.06014.61
5.3.120.0000.08314.56
5.3.110.0030.04314.61
5.3.100.0070.07314.06
5.3.90.0030.06314.04
5.3.80.0200.04714.11
5.3.70.0030.07313.85
5.3.60.0100.06713.84
5.3.50.0070.05013.88
5.3.40.0030.06313.89
5.3.30.0100.06313.98
5.3.20.0070.06713.70
5.3.10.0070.06713.71
5.3.00.0070.07313.58
5.2.170.0070.05711.93
5.2.160.0100.05711.93
5.2.150.0130.05011.93
5.2.140.0030.06311.93
5.2.130.0000.06711.93
5.2.120.0030.03711.93
5.2.110.0100.04711.93
5.2.100.0070.06011.93
5.2.90.0100.02711.93
5.2.80.0070.05711.93
5.2.70.0000.03711.93
5.2.60.0070.06311.93
5.2.50.0000.05711.93
5.2.40.0100.05711.93
5.2.30.0030.06011.93
5.2.20.0030.04311.93
5.2.10.0030.05011.93
5.2.00.0000.07011.93
5.1.60.0030.05711.93
5.1.50.0030.05711.93
5.1.40.0000.03311.93
5.1.30.0030.05711.93
5.1.20.0030.05311.93
5.1.10.0070.06011.93
5.1.00.0030.05311.93
5.0.50.0000.04311.93
5.0.40.0100.03711.93
5.0.30.0030.06711.93
5.0.20.0170.03011.93
5.0.10.0070.03711.93
5.0.00.0070.06011.93
4.4.90.0100.03011.93
4.4.80.0070.03311.93
4.4.70.0030.03311.93
4.4.60.0000.02311.93
4.4.50.0030.03311.93
4.4.40.0070.03711.93
4.4.30.0070.02311.93
4.4.20.0030.03311.93
4.4.10.0030.03311.93
4.4.00.0000.05311.93
4.3.110.0030.02711.93
4.3.100.0030.03311.93
4.3.90.0030.02711.93
4.3.80.0070.05011.93
4.3.70.0100.02311.93
4.3.60.0000.03011.93
4.3.50.0000.03011.93
4.3.40.0070.03711.93
4.3.30.0000.02311.93
4.3.20.0000.03711.93
4.3.10.0030.02711.93
4.3.00.0030.02011.93

preferences:
55.21 ms | 401 KiB | 5 Q