3v4l.org

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

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)
8.3.60.0040.01116.38
8.3.50.0140.00721.03
8.3.40.0060.01118.50
8.3.30.0140.00018.71
8.3.20.0080.00020.16
8.3.10.0040.00421.73
8.3.00.0070.00023.61
8.2.180.0070.01116.63
8.2.170.0070.01122.96
8.2.160.0100.00320.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00019.83
8.2.120.0000.00826.35
8.2.110.0090.00022.09
8.2.100.0040.00817.92
8.2.90.0040.00419.21
8.2.80.0080.00017.97
8.2.70.0060.00317.75
8.2.60.0000.00817.93
8.2.50.0030.00518.07
8.2.40.0040.00720.42
8.2.30.0000.00719.48
8.2.20.0000.00817.85
8.2.10.0100.00018.04
8.2.00.0040.00418.04
8.1.280.0110.00725.92
8.1.270.0040.00422.06
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0060.00323.79
8.1.230.0060.00619.14
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0060.00317.23
8.1.180.0000.00818.10
8.1.170.0000.00818.71
8.1.160.0000.00720.66
8.1.150.0040.00418.67
8.1.140.0040.00419.48
8.1.130.0030.00317.59
8.1.120.0070.00017.45
8.1.110.0040.00817.33
8.1.100.0000.00717.27
8.1.90.0000.00717.43
8.1.80.0000.00817.38
8.1.70.0040.00417.43
8.1.60.0050.00317.50
8.1.50.0030.00517.32
8.1.40.0050.00317.47
8.1.30.0030.00617.60
8.1.20.0040.00417.41
8.1.10.0000.00817.43
8.1.00.0040.00417.49
8.0.300.0080.00018.77
8.0.290.0000.00716.75
8.0.280.0000.00818.34
8.0.270.0000.00717.24
8.0.260.0060.00017.29
8.0.250.0020.00516.80
8.0.240.0000.00816.92
8.0.230.0030.00316.89
8.0.220.0030.00316.89
8.0.210.0000.00816.91
8.0.200.0030.00316.95
8.0.190.0040.00416.99
8.0.180.0040.00416.88
8.0.170.0030.00716.90
8.0.160.0000.00816.91
8.0.150.0070.00016.86
8.0.140.0030.00316.66
8.0.130.0000.00513.29
8.0.120.0080.00016.76
8.0.110.0040.00416.85
8.0.100.0050.00216.93
8.0.90.0000.00716.92
8.0.80.0090.00616.88
8.0.70.0000.00716.91
8.0.60.0080.00016.67
8.0.50.0000.00716.89
8.0.30.0100.00716.83
8.0.20.0110.00817.40
8.0.10.0040.00416.98
8.0.00.0090.00916.72
7.4.330.0000.00516.77
7.4.320.0060.00016.55
7.4.300.0000.00816.55
7.4.290.0030.00316.53
7.4.280.0080.00316.57
7.4.270.0070.00016.51
7.4.260.0060.00316.43
7.4.250.0040.00416.53
7.4.240.0050.00216.46
7.4.230.0070.00016.53
7.4.220.0070.01016.43
7.4.210.0120.00616.46
7.4.200.0030.00516.47
7.4.160.0040.01216.28
7.4.150.0150.00317.40
7.4.140.0160.00917.86
7.4.130.0040.01316.41
7.4.120.0130.00716.56
7.4.110.0140.00816.59
7.4.100.0100.00716.34
7.4.90.0060.01216.35
7.4.80.0130.00619.39
7.4.70.0130.00616.67
7.4.60.0080.00816.25
7.4.50.0110.00716.12
7.4.40.0070.01016.34
7.4.30.0100.00716.68
7.4.00.0000.01814.91
7.3.330.0000.00613.01
7.3.320.0000.00713.10
7.3.310.0040.00416.36
7.3.300.0070.00016.31
7.3.290.0000.00716.17
7.3.280.0050.01016.29
7.3.270.0070.01117.40
7.3.260.0100.00716.37
7.3.240.0060.01116.31
7.3.230.0100.00616.39
7.3.210.0240.00016.46
7.3.200.0100.00719.39
7.3.190.0090.00916.50
7.3.180.0070.01016.36
7.3.170.0070.01416.50
7.3.160.0060.00916.23
7.3.10.0050.01316.60
7.3.00.0030.00916.16
7.2.330.0100.00716.72
7.2.320.0090.00916.61
7.2.310.0120.00916.69
7.2.300.0120.00616.69
7.2.290.0120.00616.65
7.2.130.0090.00816.78
7.2.120.0070.00816.77
7.2.110.0070.00416.32
7.2.100.0120.00516.63
7.2.90.0100.00416.86
7.2.80.0080.00716.71
7.2.70.0110.00716.57
7.2.60.0080.01316.62
7.2.50.0050.00716.54
7.2.40.0110.00616.67
7.2.30.0090.00916.70
7.2.20.0150.00516.57
7.2.10.0080.00616.77
7.2.00.0070.00817.46
7.1.250.0080.00815.43
7.1.100.0110.00018.14
7.1.70.0000.00917.20
7.1.60.0040.01919.30
7.1.50.0070.01716.97
7.1.00.0030.07722.45
7.0.200.0000.00716.52
7.0.60.0230.07021.80
7.0.50.0170.07017.87
7.0.40.0100.04020.02
7.0.30.0270.07720.20
7.0.20.0270.05020.32
7.0.10.0030.08720.01
7.0.00.0100.06020.18
5.6.280.0070.04720.88
5.6.210.0170.03320.46
5.6.200.0000.05318.13
5.6.190.0070.08320.60
5.6.180.0370.05320.39
5.6.170.0270.08020.38
5.6.160.0030.04720.70
5.6.150.0000.07718.12
5.6.140.0100.06718.18
5.6.130.0070.08018.18
5.6.120.0030.08021.01
5.6.110.0030.08720.88
5.6.100.0000.04320.98
5.6.90.0130.05321.09
5.6.80.0070.06320.37
5.5.350.0330.07020.31
5.5.340.0070.06017.97
5.5.330.0100.07720.45
5.5.320.0300.04720.27
5.5.310.0230.05020.41
5.5.300.0100.07718.01
5.5.290.0170.07717.87
5.5.280.0070.06720.75
5.5.270.0130.06720.85
5.5.260.0000.06020.85
5.5.250.0030.08020.57
5.5.240.0170.06320.14

preferences:
59.81 ms | 401 KiB | 5 Q