3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = [ 'a' => 'a', 'submodule_id' => [1] ]; $array2 = [ 'a' => 'a', 'submodule_id' => [1] ]; var_dump(array_merge($array1, $array2));

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)
8.3.60.0190.00316.36
8.3.50.0120.00722.05
8.3.40.0070.00718.42
8.3.30.0000.01418.96
8.3.20.0030.00520.25
8.3.10.0040.00421.59
8.3.00.0050.00320.80
8.2.180.0040.01216.32
8.2.170.0110.00422.96
8.2.160.0040.01122.31
8.2.150.0090.00624.18
8.2.140.0060.00324.66
8.2.130.0000.00826.16
8.2.120.0060.00318.03
8.2.110.0030.00720.37
8.2.100.0070.00717.63
8.2.90.0040.00419.08
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0050.00317.93
8.2.50.0030.00618.07
8.2.40.0080.00019.82
8.2.30.0030.00818.06
8.2.20.0070.00017.67
8.2.10.0040.00417.97
8.2.00.0040.00417.49
8.1.280.0170.00325.92
8.1.270.0060.00320.65
8.1.260.0040.00426.35
8.1.250.0170.00028.09
8.1.240.0080.00020.84
8.1.230.0090.00317.42
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0000.00917.22
8.1.190.0000.00817.10
8.1.180.0000.00918.10
8.1.170.0000.00818.49
8.1.160.0000.00722.04
8.1.150.0040.00418.82
8.1.140.0040.00419.13
8.1.130.0070.00017.79
8.1.120.0070.00017.46
8.1.110.0000.00717.39
8.1.100.0040.00417.44
8.1.90.0000.00717.28
8.1.80.0070.00017.30
8.1.70.0030.00317.26
8.1.60.0000.00817.42
8.1.50.0040.00417.45
8.1.40.0080.00017.45
8.1.30.0050.00317.47
8.1.20.0000.00717.40
8.1.10.0000.00717.43
8.1.00.0080.00417.28
8.0.300.0080.00018.77
8.0.290.0070.00016.75
8.0.280.0080.00018.36
8.0.270.0030.00317.11
8.0.260.0060.00317.05
8.0.250.0040.00416.80
8.0.240.0090.00016.93
8.0.230.0020.00516.86
8.0.220.0070.00016.80
8.0.210.0000.00716.80
8.0.200.0030.00316.92
8.0.190.0030.00516.92
8.0.180.0000.00716.87
8.0.170.0000.00816.74
8.0.160.0070.00016.77
8.0.150.0000.00816.86
8.0.140.0040.00416.75
8.0.130.0000.00513.29
8.0.120.0030.00616.79
8.0.110.0000.00716.78
8.0.100.0040.00416.75
8.0.90.0040.00416.78
8.0.80.0000.01416.79
8.0.70.0050.00216.64
8.0.60.0030.00616.84
8.0.50.0040.00416.86
8.0.30.0130.01016.89
8.0.20.0180.01917.40
8.0.10.0030.00316.99
8.0.00.0050.01516.57
7.4.330.0060.00015.03
7.4.320.0030.00316.44
7.4.300.0030.00316.33
7.4.290.0070.00016.52
7.4.280.0000.00716.51
7.4.270.0030.00316.57
7.4.260.0000.00816.30
7.4.250.0000.00716.41
7.4.240.0020.00516.46
7.4.230.0030.00316.22
7.4.220.0110.00716.39
7.4.210.0120.00616.42
7.4.200.0070.00016.50
7.4.160.0060.00916.43
7.4.150.0030.01517.40
7.4.140.0120.00717.86
7.4.130.0060.01016.29
7.4.120.0080.00816.45
7.4.110.0060.01116.40
7.4.100.0060.01216.37
7.4.90.0110.01116.70
7.4.80.0120.01216.36
7.4.70.0070.01016.31
7.4.60.0130.01016.31
7.4.50.0050.00316.34
7.4.40.0060.01016.26
7.4.30.0150.00316.38
7.4.00.0100.00714.60
7.3.330.0000.00512.97
7.3.320.0080.00412.97
7.3.310.0000.00615.98
7.3.300.0030.00316.12
7.3.290.0070.00716.15
7.3.280.0100.00516.11
7.3.270.0080.00917.40
7.3.260.0230.00016.24
7.3.250.0090.00916.26
7.3.240.0140.00316.18
7.3.230.0090.00916.47
7.3.210.0120.00616.12
7.3.200.0110.01119.39
7.3.190.0130.00316.34
7.3.180.0040.01216.36
7.3.170.0090.01016.27
7.3.160.0170.00016.29
7.2.330.0110.00816.14
7.2.320.0140.00316.51
7.2.310.0100.00716.36
7.2.300.0100.00716.54
7.2.290.0060.01016.21
7.2.60.0060.00616.66
7.2.00.0170.00618.54
7.1.200.0070.00715.51
7.1.100.0040.00817.95
7.1.70.0000.00917.22
7.1.60.0210.00419.46
7.1.50.0090.00916.69
7.1.00.0070.07322.37
7.0.200.0060.00315.03
7.0.140.0030.04722.04
7.0.90.0130.07719.93
7.0.80.0030.08019.98
7.0.70.0030.07319.95
7.0.60.0100.07319.96
7.0.50.0030.06720.38
7.0.40.0100.05020.11
7.0.30.0030.06320.07
7.0.20.0100.07320.09
7.0.10.0070.07020.02
7.0.00.0100.08020.02
5.6.280.0000.07721.10
5.6.230.0070.07720.68
5.6.220.0000.08320.64
5.6.210.0030.08720.64
5.6.200.0070.04721.05
5.6.190.0030.06321.04
5.6.180.0200.06721.11
5.6.170.0100.08721.07
5.6.160.0070.05721.11
5.6.150.0070.05021.07
5.6.140.0030.09021.00
5.6.130.0070.06320.94
5.6.120.0030.08021.00
5.6.110.0130.06720.98
5.6.100.0100.07721.08
5.6.90.0030.07720.99
5.6.80.0070.05320.39
5.6.70.0100.04320.39
5.6.60.0100.07320.49
5.6.50.0030.08020.32
5.6.40.0070.08020.52
5.6.30.0000.08320.37
5.6.20.0100.08020.30
5.6.10.0130.07020.39
5.6.00.0100.07020.29
5.5.370.0100.07720.44
5.5.360.0000.06720.34
5.5.350.0070.08720.41
5.5.340.0100.07320.88
5.5.330.0170.06720.72
5.5.320.0100.07020.64
5.5.310.0030.08020.90
5.5.300.0100.08320.92
5.5.290.0030.08720.90
5.5.280.0100.08720.92
5.5.270.0070.07320.81
5.5.260.0100.08020.86
5.5.250.0070.08720.63
5.5.240.0100.07020.25
5.5.230.0070.04320.10
5.5.220.0030.05720.30
5.5.210.0030.05020.13
5.5.200.0070.04720.17
5.5.190.0030.08020.20
5.5.180.0130.06720.25
5.5.160.0130.07320.21
5.5.150.0100.04320.20
5.5.140.0170.04020.07
5.5.130.0100.05020.25
5.5.120.0100.07720.10
5.5.110.0100.07720.26
5.5.100.0130.07319.90
5.5.90.0070.07320.11
5.5.80.0030.07719.94
5.5.70.0130.03320.07
5.5.60.0070.06720.07
5.5.50.0000.06720.05
5.5.40.0030.08320.14
5.5.30.0070.08019.96
5.5.20.0070.07020.18
5.5.10.0070.07319.96
5.5.00.0070.06320.11
5.4.450.0170.07019.27
5.4.440.0030.05719.57
5.4.430.0070.08019.41
5.4.420.0030.08319.22
5.4.410.0000.08318.98
5.4.400.0070.07718.90
5.4.390.0100.07018.79
5.4.380.0070.06718.95
5.4.370.0100.07019.10
5.4.360.0070.07318.81
5.4.350.0030.06719.05
5.4.340.0070.08018.98
5.4.320.0070.05319.07
5.4.310.0030.07718.97
5.4.300.0030.07319.09
5.4.290.0100.07319.23
5.4.280.0030.08019.03
5.4.270.0030.08319.07
5.4.260.0130.05019.09
5.4.250.0130.05319.22
5.4.240.0030.04318.96
5.4.230.0030.04018.89
5.4.220.0070.07018.80
5.4.210.0100.07019.04
5.4.200.0070.08319.11
5.4.190.0130.06719.05
5.4.180.0070.07719.03
5.4.170.0170.06318.94
5.4.160.0130.04019.13
5.4.150.0130.07319.00
5.4.140.0030.08016.36
5.4.130.0100.06716.12
5.4.120.0070.05716.26
5.4.110.0000.04716.36
5.4.100.0000.05716.35
5.4.90.0070.07316.45
5.4.80.0100.05716.27
5.4.70.0100.06716.29
5.4.60.0070.07016.23
5.4.50.0070.07016.30
5.4.40.0130.04016.29
5.4.30.0100.06316.37
5.4.20.0100.04016.38
5.4.10.0130.07016.31
5.4.00.0000.05015.71
5.3.290.0070.08014.66
5.3.280.0030.08014.59
5.3.270.0070.07714.59
5.3.260.0130.06314.54
5.3.250.0000.07714.51
5.3.240.0070.06714.52
5.3.230.0130.06314.45
5.3.220.0100.07014.48
5.3.210.0100.06314.55
5.3.200.0070.07714.52
5.3.190.0070.08014.55
5.3.180.0070.07314.39
5.3.170.0070.07714.52
5.3.160.0170.05314.55
5.3.150.0070.07714.52
5.3.140.0070.05314.54
5.3.130.0000.06014.39
5.3.120.0030.05714.40
5.3.110.0030.04314.46
5.3.100.0070.07714.04
5.3.90.0130.07314.03
5.3.80.0100.04313.92
5.3.70.0130.03713.88
5.3.60.0070.07013.99
5.3.50.0100.06713.89
5.3.40.0170.06313.80
5.3.30.0030.07013.82
5.3.20.0070.07713.68
5.3.10.0070.05713.68
5.3.00.0100.05013.68
5.2.170.0070.03713.68
5.2.160.0100.06013.68
5.2.150.0000.04713.68
5.2.140.0100.05713.68
5.2.130.0000.05313.68
5.2.120.0070.05713.68
5.2.110.0030.06013.68
5.2.100.0100.06013.68
5.2.90.0070.04313.68
5.2.80.0030.06313.68
5.2.70.0030.06313.68
5.2.60.0030.04713.68
5.2.50.0000.06713.68
5.2.40.0030.05313.68
5.2.30.0070.05313.68
5.2.20.0100.05713.68
5.2.10.0070.05713.68
5.2.00.0070.05313.68
5.1.60.0130.04313.68
5.1.50.0070.05013.68
5.1.40.0100.04713.68
5.1.30.0030.04713.68
5.1.20.0100.03713.68
5.1.10.0070.04713.68
5.1.00.0000.06313.68
5.0.50.0030.04013.68
5.0.40.0070.03713.68
5.0.30.0030.06313.68
5.0.20.0000.04013.68
5.0.10.0100.03713.68
5.0.00.0030.06713.68
4.4.90.0070.02013.68
4.4.80.0030.02713.68
4.4.70.0070.02713.68
4.4.60.0000.04013.68
4.4.50.0030.02013.68
4.4.40.0000.05713.68
4.4.30.0030.03713.68
4.4.20.0100.01713.68
4.4.10.0000.03313.68
4.4.00.0000.04313.68
4.3.110.0030.03713.68
4.3.100.0000.03713.68
4.3.90.0000.03013.68
4.3.80.0030.05313.68
4.3.70.0000.03013.68
4.3.60.0030.03013.68
4.3.50.0030.03713.68
4.3.40.0070.03713.68
4.3.30.0030.03713.68
4.3.20.0030.03013.68
4.3.10.0000.03713.68
4.3.00.0000.03313.68

preferences:
51.99 ms | 401 KiB | 5 Q