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; } } $allKeys = array_keys($keyStats); sort($allKeys); $merged = array(); foreach ($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)
8.3.60.0170.00318.46
8.3.50.0120.00321.99
8.3.40.0150.00018.93
8.3.30.0110.00419.21
8.3.20.0040.00420.30
8.3.10.0000.01523.57
8.3.00.0080.00019.21
8.2.180.0150.00016.88
8.2.170.0070.00722.96
8.2.160.0070.00720.19
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0100.00026.16
8.2.120.0070.00317.63
8.2.110.0050.00522.12
8.2.100.0090.00317.91
8.2.90.0030.00619.21
8.2.80.0000.00917.97
8.2.70.0030.00617.63
8.2.60.0080.00517.43
8.2.50.0000.00918.07
8.2.40.0060.00321.13
8.2.30.0040.00418.32
8.2.20.0000.00817.77
8.2.10.0040.00418.07
8.2.00.0040.00417.93
8.1.280.0070.00725.92
8.1.270.0050.00323.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.91
8.1.230.0040.00719.16
8.1.220.0000.00917.78
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0060.00317.35
8.1.180.0070.00318.10
8.1.170.0040.00418.66
8.1.160.0040.00422.04
8.1.150.0070.00018.63
8.1.140.0070.00017.47
8.1.130.0070.00017.80
8.1.120.0030.00317.51
8.1.110.0080.00017.44
8.1.100.0050.00217.45
8.1.90.0030.00717.49
8.1.80.0030.00617.46
8.1.70.0040.00417.43
8.1.60.0100.00317.61
8.1.50.0050.00317.42
8.1.40.0000.00817.49
8.1.30.0040.00417.51
8.1.20.0040.00417.50
8.1.10.0000.00817.58
8.1.00.0070.00017.52
8.0.300.0040.00418.77
8.0.290.0000.00717.04
8.0.280.0030.00318.50
8.0.270.0040.00417.28
8.0.260.0070.00017.32
8.0.250.0030.00317.02
8.0.240.0040.00417.00
8.0.230.0030.00316.99
8.0.220.0030.00316.86
8.0.210.0040.00416.99
8.0.200.0030.00316.95
8.0.190.0040.00417.09
8.0.180.0070.00016.94
8.0.170.0030.00516.96
8.0.160.0040.00416.95
8.0.150.0070.00016.84
8.0.140.0000.00716.83
8.0.130.0000.00613.43
8.0.120.0000.00816.86
8.0.110.0050.00216.80
8.0.100.0000.00716.80
8.0.90.0050.00216.98
8.0.80.0040.01316.96
8.0.70.0040.00416.85
8.0.60.0040.00416.86
8.0.50.0040.00416.97
8.0.30.0100.01017.12
8.0.20.0090.01117.40
8.0.10.0040.00417.20
8.0.00.0080.01216.83
7.4.330.0000.00715.00
7.4.320.0000.00616.45
7.4.300.0040.00416.63
7.4.290.0040.00416.60
7.4.280.0040.00416.56
7.4.270.0070.00016.63
7.4.260.0030.00616.50
7.4.250.0070.00016.63
7.4.240.0030.00516.60
7.4.230.0040.00416.51
7.4.220.0040.01416.70
7.4.210.0110.00316.64
7.4.200.0000.00816.72
7.4.190.0030.00416.72
7.4.160.0100.00616.47
7.4.150.0100.00717.40
7.4.140.0070.01517.86
7.4.130.0160.00316.47
7.4.120.0080.00916.69
7.4.110.0100.01316.57
7.4.100.0150.00316.71
7.4.90.0100.00716.66
7.4.80.0130.01019.39
7.4.70.0030.01716.55
7.4.60.0060.01116.61
7.4.50.0040.00416.57
7.4.40.0100.00716.34
7.4.30.0070.01016.71
7.4.00.0120.00414.88
7.3.330.0000.00613.22
7.3.320.0030.00313.24
7.3.310.0000.00716.26
7.3.300.0000.00716.30
7.3.290.0140.00016.36
7.3.280.0070.01116.40
7.3.270.0090.00817.40
7.3.260.0100.00716.52
7.3.250.0120.00716.46
7.3.240.0130.00516.43
7.3.230.0120.00916.39
7.3.210.0100.01316.55
7.3.200.0090.01519.39
7.3.190.0060.01016.32
7.3.180.0060.00916.53
7.3.170.0120.00616.68
7.3.160.0060.00916.56
7.3.120.0060.00914.66
7.2.330.0160.00316.44
7.2.320.0100.00616.81
7.2.310.0080.00816.83
7.2.300.0130.00416.60
7.2.290.0120.00416.65
7.1.70.0100.00317.09
7.1.60.0150.01119.70
7.1.50.0070.01716.93
7.1.00.0000.08022.36
7.0.200.0070.00316.60
7.0.140.0000.07722.10
7.0.60.0070.03719.98
7.0.50.0070.07717.86
7.0.40.0030.07020.02
7.0.30.0330.04320.08
7.0.20.0430.07320.06
7.0.10.0230.05320.12
7.0.00.0130.04720.30
5.6.280.0030.07321.13
5.6.210.0130.07320.75
5.6.200.0130.07318.22
5.6.190.0130.08320.57
5.6.180.0070.08320.46
5.6.170.0300.05320.61
5.6.160.0000.07720.45
5.6.150.0200.06718.23
5.6.140.0070.08318.28
5.6.130.0100.07318.17
5.6.120.0270.06321.04
5.6.110.0000.07321.14
5.6.100.0030.07021.01
5.6.90.0130.08321.13
5.6.80.0170.06020.49
5.6.70.2300.05720.46
5.5.350.0070.07720.35
5.5.340.0170.07317.96
5.5.330.0130.06720.27
5.5.320.0400.07320.26
5.5.310.0330.07320.25
5.5.300.0030.07318.07
5.5.290.0070.05318.07
5.5.280.0000.04320.73
5.5.270.0030.04020.85
5.5.260.0130.08320.83
5.5.250.0030.08020.79
5.5.240.0070.08320.11
5.4.450.0200.05019.50
5.4.440.0230.04319.52
5.4.430.0270.04019.56
5.4.420.0330.03719.29
5.4.410.0300.03319.46
5.4.400.0330.03318.95
5.4.390.0570.03749.63
5.4.380.0130.05718.63
5.4.370.0100.05718.78
5.4.360.0130.06018.70
5.4.350.0070.06018.58
5.4.340.0300.06318.49
5.4.320.0060.03812.50
5.4.310.0100.04312.50
5.4.300.0090.05912.51
5.4.290.0100.05612.50
5.4.280.0090.05112.40
5.4.270.0170.05312.40
5.4.260.0120.04612.39
5.4.250.0090.05512.40
5.4.240.0080.04312.40
5.4.230.0120.05012.39
5.4.220.0070.05312.39
5.4.210.0090.05112.39
5.4.200.0080.06712.39
5.4.190.0100.07512.38
5.4.180.0060.06612.38
5.4.170.0080.03812.40
5.4.160.0060.04412.39
5.4.150.0050.04312.39
5.4.140.0080.03712.07
5.4.130.0090.05012.05
5.4.120.0070.04912.02
5.4.110.0070.04212.01
5.4.100.0120.05212.01
5.4.90.0130.03812.01
5.4.80.0140.05912.01
5.4.70.0110.04412.01
5.4.60.0110.05112.01
5.4.50.0230.07412.01
5.4.40.0080.04712.00
5.4.30.0080.04511.99
5.4.20.0240.10212.00
5.4.10.0120.08012.00
5.4.00.0160.07611.48
5.3.290.0120.03312.80
5.3.280.0250.07812.71
5.3.270.0110.07712.72
5.3.260.0060.05412.72
5.3.250.0140.04512.72
5.3.240.0090.05412.72
5.3.230.0220.06712.71
5.3.220.0100.06712.68
5.3.210.0080.09012.68
5.3.200.0080.05712.68
5.3.190.0140.05012.67
5.3.180.0120.04712.68
5.3.170.0110.04712.67
5.3.160.0080.05212.67
5.3.150.0230.08012.67
5.3.140.0150.04612.66
5.3.130.0110.05612.66
5.3.120.0180.06112.66
5.3.110.0160.07812.65
5.3.100.0140.05012.12
5.3.90.0070.05612.11
5.3.80.0140.09112.09
5.3.70.0110.06912.09
5.3.60.0150.09512.08
5.3.50.0220.07512.02
5.3.40.0180.07912.02
5.3.30.0110.04611.99
5.3.20.0160.08111.77
5.3.10.0100.04811.73
5.3.00.0100.04711.72
5.2.170.0110.0419.22
5.2.160.0080.0379.22
5.2.150.0130.0409.22
5.2.140.0100.0429.21
5.2.130.0090.0419.18
5.2.120.0080.0409.18
5.2.110.0080.0399.18
5.2.100.0100.0399.18
5.2.90.0070.0419.18
5.2.80.0080.0429.18
5.2.70.0090.0449.18
5.2.60.0100.0429.13
5.2.50.0080.0449.10
5.2.40.0090.0409.07
5.2.30.0060.0459.06
5.2.20.0100.0399.04
5.2.10.0050.0388.95
5.2.00.0110.0418.81
5.1.60.0090.0368.09
5.1.50.0100.0348.09
5.1.40.0090.0338.07
5.1.30.0070.0408.42
5.1.20.0100.0378.45
5.1.10.0080.0358.18
5.1.00.0080.0378.17
5.0.50.0040.0316.64
5.0.40.0060.0286.50
5.0.30.0060.0426.31
5.0.20.0040.0296.29
5.0.10.0070.0286.25
5.0.00.0070.0406.25
4.4.90.0070.0204.78
4.4.80.0050.0214.75
4.4.70.0050.0204.75
4.4.60.0040.0214.75
4.4.50.0040.0214.77
4.4.40.0040.0324.70
4.4.30.0020.0234.75
4.4.20.0070.0204.84
4.4.10.0050.0224.85
4.4.00.0060.0324.76
4.3.110.0060.0204.67
4.3.100.0050.0204.67
4.3.90.0040.0214.63
4.3.80.0050.0314.59
4.3.70.0040.0204.63
4.3.60.0050.0184.63
4.3.50.0050.0204.63
4.3.40.0030.0334.54
4.3.30.0040.0203.30
4.3.20.0030.0223.28
4.3.10.0020.0223.23
4.3.00.0100.01346.75

preferences:
51.73 ms | 400 KiB | 5 Q