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' => $index, 'arr2' => null ); } foreach ($arr1 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($allKeys); var_dump($allKeys); exit; $merged = array(); foreach ($allKeys as $key) { if (is_null($keysStats[$key]['arr2'])) { $merged[] = null; } else { $merged[] = $arr2[$keysStats[$key]['arr2']]; } } return $arrMerged; } print_r(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)
8.3.40.0120.00318.79
8.3.30.0110.00318.90
8.3.20.0000.00819.99
8.3.10.0110.00423.70
8.3.00.0080.00019.14
8.2.170.0140.00022.96
8.2.160.0070.00720.38
8.2.150.0000.00724.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0050.00320.83
8.2.110.0110.00022.19
8.2.100.0040.00717.97
8.2.90.0040.00419.36
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0090.00017.93
8.2.50.0080.00018.07
8.2.40.0090.00021.11
8.2.30.0040.00418.31
8.2.20.0050.00317.70
8.2.10.0080.00018.01
8.2.00.0050.00317.82
8.1.270.0040.00423.91
8.1.260.0090.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.96
8.1.230.0040.00719.08
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0040.00817.48
8.1.190.0030.00617.35
8.1.180.0050.00718.10
8.1.170.0050.00318.46
8.1.160.0030.00521.98
8.1.150.0040.00418.65
8.1.140.0030.00617.51
8.1.130.0070.00017.91
8.1.120.0030.00317.52
8.1.110.0030.00517.36
8.1.100.0080.00017.39
8.1.90.0040.00417.38
8.1.80.0080.00017.39
8.1.70.0000.00817.45
8.1.60.0000.01017.52
8.1.50.0080.00017.43
8.1.40.0040.00417.55
8.1.30.0000.01017.67
8.1.20.0000.00817.55
8.1.10.0000.00817.57
8.1.00.0040.00417.57
8.0.300.0050.00318.77
8.0.290.0050.00217.17
8.0.280.0000.00818.37
8.0.270.0000.00817.19
8.0.260.0000.00717.30
8.0.250.0040.00416.88
8.0.240.0040.00416.96
8.0.230.0080.00017.01
8.0.220.0000.00716.86
8.0.210.0040.00416.93
8.0.200.0000.00716.99
8.0.190.0000.00816.95
8.0.180.0040.00416.94
8.0.170.0060.00317.00
8.0.160.0070.00016.85
8.0.150.0080.00016.88
8.0.140.0050.00316.88
8.0.130.0060.00013.38
8.0.120.0040.00416.94
8.0.110.0000.00717.03
8.0.100.0040.00417.03
8.0.90.0000.00816.87
8.0.80.0060.01516.89
8.0.70.0040.00417.00
8.0.60.0040.00416.85
8.0.50.0070.00016.98
8.0.30.0060.01317.07
8.0.20.0100.00917.43
8.0.10.0050.00317.08
8.0.00.0150.00716.75
7.4.330.0000.00515.00
7.4.320.0030.00316.62
7.4.300.0040.00416.50
7.4.290.0050.00216.49
7.4.280.0030.00516.55
7.4.270.0040.00416.47
7.4.260.0080.00316.57
7.4.250.0040.00416.49
7.4.240.0020.00616.57
7.4.230.0040.00416.42
7.4.220.0100.00716.73
7.4.210.0030.01716.47
7.4.200.0030.00316.42
7.4.190.0000.00716.66
7.4.160.0070.01016.37
7.4.150.0130.01217.40
7.4.140.0120.00917.86
7.4.130.0050.01416.51
7.4.120.0110.00616.42
7.4.110.0100.00716.65
7.4.100.0120.00916.52
7.4.90.0060.01116.61
7.4.80.0030.01519.39
7.4.70.0030.01416.64
7.4.60.0070.01016.62
7.4.50.0000.00816.41
7.4.40.0000.01616.51
7.4.30.0150.00516.49
7.4.00.0080.00814.77
7.3.330.0030.00313.22
7.3.320.0030.00313.30
7.3.310.0040.00416.43
7.3.300.0030.00316.30
7.3.290.0070.01116.37
7.3.280.0110.00516.42
7.3.270.0090.01517.40
7.3.260.0150.00316.61
7.3.250.0120.01016.61
7.3.240.0060.01416.38
7.3.230.0050.01116.61
7.3.210.0070.01116.43
7.3.200.0060.01019.39
7.3.190.0060.01216.41
7.3.180.0120.00316.51
7.3.170.0120.00416.54
7.3.160.0060.01516.40
7.3.120.0080.00815.05
7.3.10.0010.01116.59
7.3.00.0020.00916.66
7.2.330.0140.00316.56
7.2.320.0080.00816.77
7.2.310.0180.00616.65
7.2.300.0160.00916.81
7.2.290.0090.01216.60
7.2.130.0100.00316.85
7.2.120.0070.00716.93
7.2.110.0060.00716.93
7.2.100.0050.00516.91
7.2.90.0030.01017.00
7.2.80.0070.00617.09
7.2.70.0070.00417.06
7.2.60.0020.01416.94
7.2.50.0070.00916.96
7.2.40.0090.00516.99
7.2.30.0030.00916.96
7.2.20.0080.00616.85
7.2.10.0100.00716.81
7.2.00.0120.00317.63
7.1.250.0070.00315.58
7.1.100.0090.00318.13
7.1.70.0000.01116.89
7.1.60.0000.01519.70
7.1.50.0120.00917.00
7.1.00.0070.07022.34
7.0.200.0060.00316.84
7.0.140.0130.06322.00
7.0.60.0070.09020.07
7.0.50.0130.07717.84
7.0.40.0130.08720.09
7.0.30.0600.07020.16
7.0.20.0200.07720.14
7.0.10.0030.05720.23
7.0.00.0100.08020.23
5.6.280.0100.06721.08
5.6.210.0100.07720.74
5.6.200.0130.07318.16
5.6.190.0030.07320.46
5.6.180.0330.05320.58
5.6.170.0130.05020.54
5.6.160.0130.07720.61
5.6.150.0000.04718.29
5.6.140.0100.07318.15
5.6.130.0070.08018.26
5.6.120.0070.08320.75
5.6.110.0070.08021.00
5.6.100.0030.08720.90
5.6.90.0130.03321.02
5.6.80.0070.06720.55
5.5.350.0130.03320.34
5.5.340.0170.07318.04
5.5.330.0030.06320.35
5.5.320.0470.06720.52
5.5.310.0270.08020.29
5.5.300.0070.08318.04
5.5.290.0070.03718.02
5.5.280.0130.07320.86
5.5.270.0030.04020.84
5.5.260.0070.08720.69
5.5.250.0070.03720.79
5.5.240.0170.07320.25
5.4.450.0330.04319.50
5.4.440.0300.05319.51
5.4.430.0200.04719.48
5.4.420.0200.04319.48
5.4.410.0300.04019.42
5.4.400.0270.02719.23
5.4.390.0230.04719.05
5.4.380.0430.06018.63
5.4.370.0430.05018.59
5.4.360.0470.06318.74
5.4.350.0370.05018.78
5.4.340.0370.05018.70
5.4.320.0060.03912.51
5.4.310.0070.03912.51
5.4.300.0120.05212.51
5.4.290.0070.05812.51
5.4.280.0070.05512.41
5.4.270.0080.05112.41
5.4.260.0080.04112.41
5.4.250.0080.05612.41
5.4.240.0080.05512.41
5.4.230.0060.05612.40
5.4.220.0060.04712.40
5.4.210.0090.04212.40
5.4.200.0050.04612.40
5.4.190.0090.04312.39
5.4.180.0060.03612.40
5.4.170.0080.03612.40
5.4.160.0090.04412.39
5.4.150.0100.03312.39
5.4.140.0060.03712.07
5.4.130.0080.03412.07
5.4.120.0050.03812.02
5.4.110.0010.04012.02
5.4.100.0050.03612.02
5.4.90.0100.04212.02
5.4.80.0070.03812.02
5.4.70.0070.03412.02
5.4.60.0050.03612.02
5.4.50.0060.03612.01
5.4.40.0070.03412.00
5.4.30.0040.03812.00
5.4.20.0100.03212.00
5.4.10.0070.03612.00
5.4.00.0050.03811.50
5.3.290.0050.04112.80
5.3.280.0060.03912.71
5.3.270.0040.04212.73
5.3.260.0090.03912.72
5.3.250.0060.04012.72
5.3.240.0090.04012.72
5.3.230.0060.04712.71
5.3.220.0060.03812.68
5.3.210.0070.04112.68
5.3.200.0070.03912.68
5.3.190.0010.04712.68
5.3.180.0070.03712.67
5.3.170.0080.03812.67
5.3.160.0050.03812.67
5.3.150.0060.03812.68
5.3.140.0050.03812.66
5.3.130.0090.03612.66
5.3.120.0060.03912.66
5.3.110.0060.03812.66
5.3.100.0050.04312.13
5.3.90.0060.03912.12
5.3.80.0040.03812.11
5.3.70.0070.03712.11
5.3.60.0070.04412.09
5.3.50.0070.05012.04
5.3.40.0120.04512.04
5.3.30.0060.03712.00
5.3.20.0050.03711.78
5.3.10.0110.04011.75
5.3.00.0060.03611.73
5.2.170.0070.0289.24
5.2.160.0040.0299.23
5.2.150.0040.0319.24
5.2.140.0040.0329.23
5.2.130.0060.0319.19
5.2.120.0050.0299.19
5.2.110.0030.0329.20
5.2.100.0100.0239.20
5.2.90.0070.0289.20
5.2.80.0070.0329.19
5.2.70.0090.0379.19
5.2.60.0130.0319.14
5.2.50.0090.0429.11
5.2.40.0090.0379.09
5.2.30.0070.0409.06
5.2.20.0080.0269.05
5.2.10.0050.0288.96
5.2.00.0040.0308.82
5.1.60.0060.0248.10
5.1.50.0040.0268.10
5.1.40.0060.0228.09
5.1.30.0050.0268.44
5.1.20.0070.0248.45
5.1.10.0070.0238.18
5.1.00.0070.0288.18
5.0.50.0050.0276.64
5.0.40.0050.0226.50
5.0.30.0040.0376.31
5.0.20.0040.0196.29
5.0.10.0030.0216.26
5.0.00.0040.0306.25
4.4.90.0020.0164.77
4.4.80.0020.0184.75
4.4.70.0030.0154.75
4.4.60.0020.0204.75
4.4.50.0050.0154.77
4.4.40.0040.0354.71
4.4.30.0040.0154.76
4.4.20.0020.0164.85
4.4.10.0040.0154.85
4.4.00.0020.0274.76
4.3.110.0030.0164.67
4.3.100.0050.0174.66
4.3.90.0040.0144.63
4.3.80.0020.0264.58
4.3.70.0030.0154.63
4.3.60.0020.0154.63
4.3.50.0050.0134.63
4.3.40.0030.0234.54
4.3.30.0030.0153.30
4.3.20.0010.0173.29
4.3.10.0010.0163.24
4.3.00.0070.01316.92

preferences:
39.2 ms | 400 KiB | 5 Q