3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = []; $arr2 = [[1, 2]]; var_dump(array_merge($arr1, $arr2));

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)
8.3.40.0070.00718.68
8.3.30.0140.00018.92
8.3.20.0040.00420.36
8.3.10.0050.00321.82
8.3.00.0000.00821.00
8.2.170.0140.00322.96
8.2.160.0100.00322.02
8.2.150.0100.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0090.00417.43
8.2.110.0060.00320.35
8.2.100.0000.01217.66
8.2.90.0000.00817.72
8.2.80.0000.00719.21
8.2.70.0030.00617.74
8.2.60.0060.00317.80
8.2.50.0080.00318.10
8.2.40.0050.00320.46
8.2.30.0040.00417.87
8.2.20.0040.00417.61
8.2.10.0060.00317.94
8.2.00.0030.00517.60
8.1.270.0040.00420.59
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0040.00422.30
8.1.230.0090.00322.63
8.1.220.0000.00817.74
8.1.210.0000.00920.36
8.1.200.0060.00317.23
8.1.190.0100.00017.23
8.1.180.0040.00418.10
8.1.170.0040.00418.34
8.1.160.0040.00422.11
8.1.150.0090.00018.81
8.1.140.0030.00619.08
8.1.130.0000.00817.74
8.1.120.0040.00417.28
8.1.110.0040.00417.32
8.1.100.0030.00517.39
8.1.90.0030.00317.27
8.1.80.0000.00717.38
8.1.70.0070.00017.27
8.1.60.0060.00317.39
8.1.50.0050.00317.44
8.1.40.0050.00317.37
8.1.30.0040.00417.49
8.1.20.0040.00417.48
8.1.10.0050.00317.29
8.1.00.0040.00417.41
8.0.300.0020.00521.86
8.0.290.0000.00816.63
8.0.280.0070.00018.28
8.0.270.0000.00717.17
8.0.260.0020.00517.09
8.0.250.0040.00416.84
8.0.240.0040.00416.75
8.0.230.0070.00016.91
8.0.220.0070.00016.72
8.0.210.0000.00716.70
8.0.200.0030.00316.94
8.0.190.0030.00316.75
8.0.180.0040.00416.89
8.0.170.0000.00816.72
8.0.160.0040.00316.87
8.0.150.0000.00716.78
8.0.140.0040.00416.83
8.0.130.0000.00613.29
8.0.120.0040.00416.79
8.0.110.0000.00716.80
8.0.100.0000.00716.66
8.0.90.0040.00416.77
8.0.80.0090.00916.77
8.0.70.0000.00716.71
8.0.60.0040.00416.82
8.0.50.0020.00516.85
8.0.30.0130.01016.89
8.0.20.0110.01317.40
8.0.10.0050.00216.77
8.0.00.0080.00816.77
7.4.330.0000.00615.03
7.4.320.0000.00716.52
7.4.300.0040.00416.42
7.4.290.0000.00716.42
7.4.280.0030.00516.51
7.4.270.0030.00516.51
7.4.260.0040.00416.48
7.4.250.0070.00016.34
7.4.240.0050.00216.48
7.4.230.0000.00816.52
7.4.220.0120.00916.57
7.4.210.0040.01116.57
7.4.200.0000.00716.22
7.4.160.0120.00316.42
7.4.150.0090.01317.40
7.4.140.0090.01117.86
7.4.130.0090.00816.42
7.4.120.0140.00416.38
7.4.110.0170.00716.44
7.4.100.0160.01016.47
7.4.90.0100.01016.31
7.4.80.0030.01319.39
7.4.70.0100.00716.38
7.4.60.0090.00616.26
7.4.50.0040.00416.58
7.4.40.0090.01316.60
7.4.30.0130.01016.57
7.4.00.0060.00815.05
7.3.330.0050.00013.12
7.3.320.0000.00613.03
7.3.310.0030.00516.17
7.3.300.0030.00315.97
7.3.290.0070.00616.15
7.3.280.0100.01116.17
7.3.270.0090.01517.40
7.3.260.0100.00716.28
7.3.250.0120.01116.20
7.3.240.0060.01216.14
7.3.230.0110.00716.39
7.3.210.0100.00616.02
7.3.200.0060.01419.39
7.3.190.0050.01116.24
7.3.180.0070.01016.47
7.3.170.0090.00916.27
7.3.160.0130.00316.43
7.3.10.0160.00316.24
7.3.00.0130.00316.15
7.2.330.0060.00916.49
7.2.320.0100.00716.30
7.2.310.0040.01616.40
7.2.300.0160.00016.14
7.2.290.0090.00916.35
7.2.130.0150.00416.60
7.2.120.0190.00016.39
7.2.110.0210.00016.19
7.2.100.0210.00416.21
7.2.90.0150.00916.15
7.2.80.0180.00316.43
7.2.70.0100.01016.45
7.2.60.0150.00516.39
7.2.50.0130.00316.59
7.2.40.0150.00516.39
7.2.30.0120.00816.68
7.2.20.0070.01016.24
7.2.10.0090.00316.13
7.2.00.0060.00917.99
7.1.250.0040.01615.27
7.1.200.0000.01115.73
7.1.100.0070.00718.10
7.1.70.0040.00416.96
7.1.60.0090.00619.46
7.1.50.0030.01716.73
7.1.00.0100.07022.57
7.0.200.0060.00615.01
7.0.140.0000.07322.00
7.0.60.0100.07720.00
7.0.50.0070.05317.89
7.0.40.0030.06020.14
7.0.30.0200.04020.04
7.0.20.0400.06320.02
7.0.10.0100.08020.00
7.0.00.0130.07320.30
5.6.280.0030.07320.90
5.6.210.0100.07720.74
5.6.200.0130.07318.19
5.6.190.0030.04320.57
5.6.180.0230.04320.56
5.6.170.0230.07020.40
5.6.160.0100.08020.47
5.6.150.0100.05718.22
5.6.140.0130.03718.15
5.6.130.0070.08018.09
5.6.120.0100.06720.98
5.6.110.0100.08721.00
5.6.100.0170.07720.98
5.6.90.0130.08321.12
5.6.80.0100.07720.40
5.5.350.0270.04720.39
5.5.340.0070.03717.99
5.5.330.0030.08020.23
5.5.320.0230.04020.27
5.5.310.0470.05320.50
5.5.300.0200.06717.91
5.5.290.0000.04317.94
5.5.280.0070.08020.77
5.5.270.0000.04720.85
5.5.260.0070.07720.75
5.5.250.0070.05320.48
5.5.240.0030.03320.18
5.4.450.0770.04719.07
5.4.440.1000.05319.52
5.4.430.0070.05719.23
5.4.420.0900.05719.59
5.4.410.0930.05319.45
5.4.400.0930.04719.09
5.4.390.1100.05018.75
5.4.380.0900.06318.79
5.4.370.1030.04718.70
5.4.360.0900.05718.59
5.4.350.0930.06018.70
5.4.340.0930.06018.72
5.4.320.1000.06018.69
5.4.310.0970.06018.44
5.4.300.1200.04018.72
5.4.290.0930.05318.71
5.4.280.0900.06018.49
5.4.270.0930.05318.50
5.4.260.1030.05318.43
5.4.250.1000.06718.69
5.4.240.1030.04718.64
5.4.230.0930.05318.64
5.4.220.1000.05318.70
5.4.210.1100.04018.58
5.4.200.1070.04316.43
5.4.190.0930.05718.68
5.4.180.1030.06318.48
5.4.170.1030.05318.50
5.4.160.0930.05718.57
5.4.150.1030.04318.57
5.4.140.1100.04716.32
5.4.130.1030.04016.15
5.4.120.0970.05316.30
5.4.110.1070.04716.16
5.4.100.1100.05316.25
5.4.90.1030.05316.12
5.4.80.1030.05316.27
5.4.70.0900.05716.28
5.4.60.1070.04716.29
5.4.50.1000.05716.09
5.4.40.1000.04716.22
5.4.30.0930.05316.05
5.4.20.1030.05716.14
5.4.10.0970.04716.04
5.4.00.1030.05315.70
5.3.290.0930.05714.66
5.3.280.0970.05314.50
5.3.270.1070.04314.70
5.3.260.1230.07014.60
5.3.250.0970.04714.55
5.3.240.1070.04714.52
5.3.230.0900.05314.64
5.3.220.1070.04314.48
5.3.210.0930.05714.62
5.3.200.1030.05014.61
5.3.190.0900.05314.50
5.3.180.1100.05714.61
5.3.170.0930.05714.66
5.3.160.1030.05314.66
5.3.150.1100.05014.50
5.3.140.1030.05014.49
5.3.130.0930.05314.44
5.3.120.1100.05014.58
5.3.110.0930.05714.64
5.3.100.1130.04314.03
5.3.90.1100.04714.02
5.3.80.0900.05313.96
5.3.70.0900.06313.93
5.3.60.0970.05313.98
5.3.50.0870.05013.98
5.3.40.1000.05313.92
5.3.30.1000.04714.00
5.3.20.0830.05313.67
5.3.10.1000.05013.57
5.3.00.1000.05313.73
5.2.170.0730.04311.11
5.2.160.0870.03011.15
5.2.150.0970.05311.13
5.2.140.0800.04011.05
5.2.130.0830.03711.14
5.2.120.0830.06011.05
5.2.110.0870.05711.07
5.2.100.0830.03311.03
5.2.90.0730.04311.06
5.2.80.0700.04711.13
5.2.70.0700.04711.04
5.2.60.0730.05011.10
5.2.50.0800.04010.93
5.2.40.0670.05011.05
5.2.30.0600.04311.00
5.2.20.0670.04311.00
5.2.10.0630.03310.86
5.2.00.0530.04310.78
5.1.60.0670.03010.13
5.1.50.0670.02710.07
5.1.40.0730.03010.04
5.1.30.0800.04010.33
5.1.20.0670.05310.41
5.1.10.0630.03310.04
5.1.00.0530.05010.13
5.0.50.0300.0308.57
5.0.40.0330.0278.47
5.0.30.0330.0408.21
5.0.20.0330.0238.17
5.0.10.0300.0338.20
5.0.00.0330.0438.15
4.4.90.0270.0275.88
4.4.80.0270.0235.86
4.4.70.0300.0235.86
4.4.60.0370.0205.94
4.4.50.0370.0175.86
4.4.40.0300.0335.90
4.4.30.0330.0205.93
4.4.20.0300.0205.96
4.4.10.0270.0235.93
4.4.00.0370.0305.95
4.3.110.0270.0275.84
4.3.100.0300.0235.80
4.3.90.0330.0205.79
4.3.80.0330.0335.89
4.3.70.0400.0175.77
4.3.60.0330.0235.78
4.3.50.0330.0235.86
4.3.40.0300.0375.75
4.3.30.0170.0235.73
4.3.20.0170.0205.73
4.3.10.0230.0175.73
4.3.00.0070.02314.42

preferences:
53.44 ms | 400 KiB | 5 Q