3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mergeArray(array $arr1, array $arr2) { $keysStats = array(); foreach ($arr1 as $index => $key) { $keysStats[$key] = array( 'arr1' => $index, 'arr2' => null ); } foreach ($arr2 as $index => $key) { if (!is_array($keysStats[$key])) { $keysStats[$key] = array( 'arr1' => null, 'arr2' => $index ); } else { $keysStats[$key]['arr2'] = $index; } } $allKeys = array_keys($keysStats); sort($allKeys); $merged = array(); foreach ($allKeys as $key) { if (is_null($keysStats[$key]['arr2'])) { $merged[] = null; } else { $merged[] = $arr2[$keysStats[$key]['arr2']]; } } return $merged; } var_dump(mergeArray( array( 'a', 'b', 'c', 'd', 'e', 'f', 'g' ), array( 'a', 'b', 'z', 'q' ) ));

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)
8.3.60.0150.00018.80
8.3.50.0110.00621.96
8.3.40.0120.00618.87
8.3.30.0070.00719.04
8.3.20.0030.00520.23
8.3.10.0040.00423.48
8.3.00.0000.00820.96
8.2.180.0090.00616.75
8.2.170.0130.00622.96
8.2.160.0070.01119.01
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00526.16
8.2.120.0030.00520.93
8.2.110.0070.00320.48
8.2.100.0080.00418.04
8.2.90.0040.00418.09
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0000.00821.06
8.2.30.0040.00418.28
8.2.20.0000.00717.84
8.2.10.0000.00818.22
8.2.00.0040.00417.87
8.1.280.0070.00725.92
8.1.270.0030.00623.84
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0090.00022.25
8.1.230.0040.00720.88
8.1.220.0030.00617.74
8.1.210.0000.00818.80
8.1.200.0000.01317.48
8.1.190.0050.00317.35
8.1.180.0000.00818.10
8.1.170.0040.00418.57
8.1.160.0090.00021.90
8.1.150.0000.00718.61
8.1.140.0000.00717.42
8.1.130.0000.00717.75
8.1.120.0000.00717.40
8.1.110.0040.00417.38
8.1.100.0030.00517.35
8.1.90.0030.00617.49
8.1.80.0070.00017.46
8.1.70.0040.00417.43
8.1.60.0080.00417.63
8.1.50.0030.00517.44
8.1.40.0020.00517.53
8.1.30.0000.00817.62
8.1.20.0040.00417.73
8.1.10.0000.00817.60
8.1.00.0040.00417.43
8.0.300.0040.00420.12
8.0.290.0070.00016.75
8.0.280.0030.00318.46
8.0.270.0000.00717.27
8.0.260.0000.00717.21
8.0.250.0070.00017.07
8.0.240.0030.00317.02
8.0.230.0000.00717.03
8.0.220.0030.00316.97
8.0.210.0000.00716.95
8.0.200.0030.00317.00
8.0.190.0050.00217.00
8.0.180.0000.00717.02
8.0.170.0000.00916.91
8.0.160.0000.00716.94
8.0.150.0000.00716.98
8.0.140.0050.00216.95
8.0.130.0050.00013.39
8.0.120.0000.00816.84
8.0.110.0000.00817.03
8.0.100.0050.00317.00
8.0.90.0050.00316.88
8.0.80.0070.01616.90
8.0.70.0070.00016.96
8.0.60.0040.00416.93
8.0.50.0040.00417.03
8.0.30.0140.00517.18
8.0.20.0110.00817.40
8.0.10.0040.00416.97
8.0.00.0050.01316.83
7.4.330.0020.00215.00
7.4.320.0030.00316.66
7.4.300.0030.00316.55
7.4.290.0030.00316.44
7.4.280.0070.00016.51
7.4.270.0030.00316.52
7.4.260.0000.00816.52
7.4.250.0050.00316.48
7.4.240.0000.00716.48
7.4.230.0000.00716.55
7.4.220.0120.00616.66
7.4.210.0070.01016.71
7.4.200.0070.00016.71
7.4.190.0000.00716.73
7.4.160.0080.00816.49
7.4.150.0070.01017.40
7.4.140.0100.00917.86
7.4.130.0090.01016.61
7.4.120.0110.00816.63
7.4.110.0140.00416.49
7.4.100.0080.00816.62
7.4.90.0130.00416.46
7.4.80.0060.01419.39
7.4.70.0130.00616.55
7.4.60.0060.01116.48
7.4.50.0080.00016.22
7.4.40.0060.01116.32
7.4.30.0140.00716.68
7.4.00.0040.01114.86
7.3.330.0000.00513.39
7.3.320.0030.00313.46
7.3.310.0000.00716.47
7.3.300.0000.00716.44
7.3.290.0030.01516.32
7.3.280.0070.01116.43
7.3.270.0060.01117.40
7.3.260.0030.01416.46
7.3.250.0100.00716.56
7.3.240.0060.01216.43
7.3.230.0100.00716.59
7.3.210.0190.00016.48
7.3.200.0030.01419.39
7.3.190.0060.01616.46
7.3.180.0110.00416.66
7.3.170.0060.00916.49
7.3.160.0140.00316.57
7.3.120.0000.01514.91
7.3.10.0090.00616.62
7.3.00.0110.00316.74
7.2.330.0030.02016.68
7.2.320.0210.00416.91
7.2.310.0030.01416.79
7.2.300.0090.00916.78
7.2.290.0070.01116.79
7.2.130.0030.01017.00
7.2.120.0070.01117.00
7.2.110.0080.00516.69
7.2.100.0100.01016.84
7.2.90.0070.00717.03
7.2.80.0030.00616.89
7.2.70.0100.00317.03
7.2.60.0090.00617.05
7.2.50.0070.00716.86
7.2.40.0060.00316.77
7.2.30.0090.00617.09
7.2.20.0060.00916.98
7.2.10.0000.01216.70
7.2.00.0060.01016.71
7.1.250.0050.00315.77
7.1.200.0070.00715.58
7.1.70.0000.00717.08
7.1.60.0000.01719.70
7.1.50.0070.01416.96
7.1.00.0030.07722.30
7.0.200.0040.01116.72
7.0.140.0030.07321.97
7.0.60.0100.06720.00
7.0.50.0100.04017.98
7.0.40.0100.04720.21
7.0.30.0330.08320.17
7.0.20.0170.04020.22
7.0.10.0030.05720.09
7.0.00.0030.05320.20
5.6.280.0100.06721.00
5.6.210.0030.08720.57
5.6.200.0000.04318.16
5.6.190.0100.03720.67
5.6.180.0330.07720.61
5.6.170.0270.07020.57
5.6.160.0170.07020.71
5.6.150.0070.07318.12
5.6.140.0070.03318.20
5.6.130.0030.08318.25
5.6.120.0100.08021.02
5.6.110.0130.07021.00
5.6.100.0100.06721.04
5.6.90.0070.05720.96
5.6.80.0130.05720.54
5.5.350.0200.08020.53
5.5.340.0030.07717.98
5.5.330.0030.05320.56
5.5.320.0470.06320.25
5.5.310.0400.07320.34
5.5.300.0030.05718.05
5.5.290.0130.07717.95
5.5.280.0200.05020.69
5.5.270.0130.08020.96
5.5.260.0070.08320.95
5.5.250.0100.03320.78
5.5.240.0000.08020.05
5.4.450.0100.05019.47
5.4.440.0370.04319.47
5.4.430.0530.04719.27
5.4.420.0200.04319.56
5.4.410.0170.04719.19
5.4.400.0170.04051.95
5.4.390.0300.04749.60
5.4.380.0230.05318.78
5.4.370.0230.04318.80
5.4.360.0130.05318.79
5.4.350.0170.05018.59
5.4.340.0130.05318.63
5.4.320.0110.03712.51
5.4.310.0100.03412.51
5.4.300.0140.06012.51
5.4.290.0090.05812.50
5.4.280.0100.05012.40
5.4.270.0100.05012.40
5.4.260.0070.05512.40
5.4.250.0090.05312.40
5.4.240.0080.05412.40
5.4.230.0110.05312.39
5.4.220.0080.05612.39
5.4.210.0050.05812.39
5.4.200.0100.05612.39
5.4.190.0060.05812.39
5.4.180.0060.05612.39
5.4.170.0080.05412.40
5.4.160.0060.05512.39
5.4.150.0080.05312.39
5.4.140.0080.05612.08
5.4.130.0070.05312.06
5.4.120.0090.04612.02
5.4.110.0060.05012.02
5.4.100.0100.04812.02
5.4.90.0090.05712.01
5.4.80.0070.05612.02
5.4.70.0070.05012.01
5.4.60.0070.05512.01
5.4.50.0080.05512.02
5.4.40.0120.05012.00
5.4.30.0090.05211.99
5.4.20.0070.05712.00
5.4.10.0060.05612.00
5.4.00.0080.05111.49
5.3.290.0080.04512.80
5.3.280.0070.05412.71
5.3.270.0090.05412.72
5.3.260.0100.05312.72
5.3.250.0070.05712.72
5.3.240.0090.06612.72
5.3.230.0050.05512.71
5.3.220.0140.06012.68
5.3.210.0110.05812.68
5.3.200.0110.05312.68
5.3.190.0100.05212.68
5.3.180.0080.05712.68
5.3.170.0120.05112.66
5.3.160.0110.08012.68
5.3.150.0150.05912.67
5.3.140.0060.05412.66
5.3.130.0130.05112.66
5.3.120.0060.05612.66
5.3.110.0140.04812.66
5.3.100.0090.05012.12
5.3.90.0080.05312.11
5.3.80.0080.05012.09
5.3.70.0060.05112.10
5.3.60.0090.05112.08
5.3.50.0050.05312.03
5.3.40.0120.04612.03
5.3.30.0090.05011.99
5.3.20.0060.05111.77
5.3.10.0120.04811.73
5.3.00.0070.05411.72
5.2.170.0080.0439.23
5.2.160.0080.0429.23
5.2.150.0050.0469.22
5.2.140.0070.0449.22
5.2.130.0080.0419.18
5.2.120.0040.0459.18
5.2.110.0060.0419.19
5.2.100.0050.0439.18
5.2.90.0080.0409.18
5.2.80.0030.0469.18
5.2.70.0070.0439.18
5.2.60.0050.0449.13
5.2.50.0070.0429.10
5.2.40.0080.0409.08
5.2.30.0080.0439.06
5.2.20.0090.0399.04
5.2.10.0060.0438.95
5.2.00.0070.0458.82
5.1.60.0070.0378.10
5.1.50.0110.0338.09
5.1.40.0060.0368.08
5.1.30.0100.0348.43
5.1.20.0060.0388.46
5.1.10.0080.0338.18
5.1.00.0030.0398.18
5.0.50.0040.0286.64
5.0.40.0040.0286.50
5.0.30.0040.0426.31
5.0.20.0040.0276.29
5.0.10.0020.0306.25
5.0.00.0120.0336.25
4.4.90.0040.0234.78
4.4.80.0000.0264.76
4.4.70.0030.0224.75
4.4.60.0020.0244.75
4.4.50.0050.0234.77
4.4.40.0030.0374.71
4.4.30.0050.0224.76
4.4.20.0070.0214.84
4.4.10.0030.0234.85
4.4.00.0040.0334.76
4.3.110.0040.0224.67
4.3.100.0050.0204.66
4.3.90.0020.0234.63
4.3.80.0040.0324.58
4.3.70.0030.0224.63
4.3.60.0020.0224.63
4.3.50.0040.0214.63
4.3.40.0020.0344.54
4.3.30.0020.0233.30
4.3.20.0020.0223.29
4.3.10.0030.0213.23
4.3.00.0070.01346.75

preferences:
52.94 ms | 401 KiB | 5 Q