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 $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)
8.3.60.0040.01118.66
8.3.50.0110.00821.97
8.3.40.0140.00318.96
8.3.30.0070.00719.21
8.3.20.0040.00420.30
8.3.10.0040.00423.66
8.3.00.0030.00519.18
8.2.180.0040.01116.63
8.2.170.0140.00322.96
8.2.160.0090.00520.11
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.91
8.2.110.0100.00022.25
8.2.100.0120.00017.85
8.2.90.0000.00819.25
8.2.80.0060.00317.97
8.2.70.0090.00017.50
8.2.60.0070.00317.93
8.2.50.0000.00818.07
8.2.40.0050.00321.00
8.2.30.0040.00418.38
8.2.20.0000.00817.83
8.2.10.0050.00318.17
8.2.00.0040.00417.81
8.1.280.0110.00425.92
8.1.270.0040.00423.92
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0040.00423.83
8.1.230.0030.00719.15
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0000.00817.35
8.1.180.0060.00318.10
8.1.170.0030.00518.44
8.1.160.0040.00422.07
8.1.150.0040.00418.55
8.1.140.0000.00717.33
8.1.130.0030.00317.84
8.1.120.0020.00517.49
8.1.110.0040.00417.53
8.1.100.0000.00817.44
8.1.90.0090.00017.47
8.1.80.0040.00417.48
8.1.70.0000.00817.45
8.1.60.0000.01117.60
8.1.50.0080.00017.52
8.1.40.0040.00417.52
8.1.30.0000.00817.70
8.1.20.0040.00417.73
8.1.10.0040.00417.48
8.1.00.0040.00417.52
8.0.300.0050.00318.77
8.0.290.0000.00717.15
8.0.280.0000.00818.50
8.0.270.0050.00317.27
8.0.260.0070.00017.39
8.0.250.0000.00717.01
8.0.240.0000.00717.09
8.0.230.0040.00416.94
8.0.220.0040.00416.86
8.0.210.0030.00316.96
8.0.200.0030.00316.94
8.0.190.0030.00517.06
8.0.180.0040.00416.95
8.0.170.0040.00416.82
8.0.160.0030.00517.01
8.0.150.0070.00016.89
8.0.140.0000.00816.87
8.0.130.0030.00313.42
8.0.120.0040.00416.91
8.0.110.0020.00516.86
8.0.100.0000.00816.95
8.0.90.0030.00517.01
8.0.80.0060.01017.01
8.0.70.0040.00416.92
8.0.60.0040.00417.00
8.0.50.0000.00816.76
8.0.30.0110.00717.13
8.0.20.0130.00917.40
8.0.10.0040.00416.88
8.0.00.0050.01516.70
7.4.330.0050.00015.00
7.4.320.0060.00016.54
7.4.300.0030.00316.63
7.4.290.0000.00716.38
7.4.280.0030.00516.52
7.4.270.0000.00716.64
7.4.260.0070.00016.54
7.4.250.0080.00016.60
7.4.240.0050.00216.54
7.4.230.0000.00716.73
7.4.220.0110.00716.70
7.4.210.0070.00716.70
7.4.200.0030.00316.42
7.4.190.0070.00016.76
7.4.160.0070.01016.43
7.4.150.0060.01217.40
7.4.140.0100.01117.86
7.4.130.0120.00816.54
7.4.120.0090.00816.59
7.4.110.0070.01016.52
7.4.100.0130.00416.33
7.4.90.0070.01016.52
7.4.80.0150.00619.39
7.4.70.0040.01216.58
7.4.60.0110.00616.42
7.4.50.0080.00016.33
7.4.40.0130.00316.57
7.4.30.0090.00616.50
7.4.10.0100.00915.07
7.4.00.0100.00615.00
7.3.330.0060.00013.45
7.3.320.0040.00213.20
7.3.310.0000.00816.33
7.3.300.0000.00716.35
7.3.290.0110.00416.43
7.3.280.0040.01516.42
7.3.270.0100.00717.40
7.3.260.0030.01716.33
7.3.250.0100.00716.59
7.3.240.0070.01016.61
7.3.230.0090.00616.51
7.3.210.0130.00616.63
7.3.200.0050.01119.39
7.3.190.0100.00616.50
7.3.180.0140.00716.42
7.3.170.0120.00916.36
7.3.160.0060.01516.40
7.3.130.0060.01214.99
7.3.120.0050.01214.98
7.3.110.0060.01114.99
7.3.100.0070.00715.05
7.3.90.0060.01015.06
7.3.80.0100.00514.91
7.3.70.0100.00414.87
7.3.60.0080.00315.02
7.3.50.0030.00815.08
7.3.40.0070.00815.00
7.3.30.0090.00515.01
7.3.20.0070.00716.56
7.3.10.0110.00216.69
7.3.00.0060.00816.71
7.2.330.0120.00616.55
7.2.320.0080.01116.89
7.2.310.0120.00616.61
7.2.300.0120.00616.81
7.2.290.0160.00616.62
7.2.260.0080.01215.01
7.2.250.0110.00615.04
7.2.240.0070.00815.12
7.2.230.0050.00815.21
7.2.220.0060.00615.10
7.2.210.0080.00815.25
7.2.200.0020.01015.00
7.2.190.0070.00715.21
7.2.180.0070.00715.12
7.2.170.0060.00715.13
7.2.160.0060.00815.07
7.2.150.0050.00717.09
7.2.140.0060.01016.99
7.2.130.0060.00716.99
7.2.120.0070.00616.86
7.2.110.0060.00916.96
7.2.100.0030.00916.88
7.2.90.0060.00716.96
7.2.80.0080.00516.92
7.2.70.0050.01117.04
7.2.60.0080.00716.86
7.2.50.0090.00616.92
7.2.40.0060.00816.97
7.2.30.0040.01016.90
7.2.20.0050.00916.89
7.2.10.0080.00616.93
7.2.00.0080.01017.45
7.1.330.0050.00815.83
7.1.320.0060.00615.75
7.1.310.0020.01015.71
7.1.300.0060.00615.92
7.1.290.0040.00815.77
7.1.280.0050.01015.83
7.1.270.0050.00715.77
7.1.260.0070.00615.71
7.1.250.0080.00615.72
7.1.240.0030.00815.65
7.1.230.0070.00615.96
7.1.220.0020.01115.86
7.1.210.0090.00715.71
7.1.200.0050.00915.97
7.1.190.0030.01015.78
7.1.180.0000.01015.79
7.1.170.0070.00715.86
7.1.160.0060.00615.70
7.1.150.0010.01315.73
7.1.140.0030.01015.70
7.1.130.0040.01115.70
7.1.120.0080.00515.87
7.1.110.0100.00415.73
7.1.100.0030.00916.39
7.1.90.0060.00715.81
7.1.80.0060.00715.81
7.1.70.0020.01116.21
7.1.60.0070.00916.81
7.1.50.0080.00816.11
7.1.40.0060.00916.01
7.1.30.0070.00615.69
7.1.20.0020.01115.79
7.1.10.0060.00715.67
7.1.00.0050.02417.49
7.0.330.0070.00615.37
7.0.320.0080.00415.29
7.0.310.0050.00715.31
7.0.300.0030.00815.45
7.0.290.0080.00315.47
7.0.280.0060.00515.46
7.0.270.0090.00515.37
7.0.260.0060.00715.41
7.0.250.0080.00515.41
7.0.240.0050.00915.38
7.0.230.0060.00615.52
7.0.220.0080.00715.50
7.0.210.0050.00515.58
7.0.200.0040.00915.69
7.0.190.0040.01115.42
7.0.180.0030.00915.45
7.0.170.0080.00515.40
7.0.160.0040.00815.39
7.0.150.0080.00415.25
7.0.140.0030.02317.02
7.0.130.0070.00615.46
7.0.120.0030.00715.41
7.0.110.0030.00815.24
7.0.100.0100.02316.64
7.0.90.0110.02316.60
7.0.80.0140.01516.57
7.0.70.0070.02016.42
7.0.60.0110.02916.56
7.0.50.0120.02516.68
7.0.40.0050.02615.59
7.0.30.0080.02515.56
7.0.20.0040.02415.52
7.0.10.0040.02215.46
7.0.00.0070.02415.49
5.6.400.0060.00714.72
5.6.390.0050.00814.82
5.6.380.0060.00714.67
5.6.370.0040.01014.71
5.6.360.0100.00514.70
5.6.350.0060.00614.51
5.6.340.0050.00714.80
5.6.330.0070.00714.57
5.6.320.0040.00614.76
5.6.310.0030.00814.66
5.6.300.0040.00914.61
5.6.290.0040.01014.76
5.6.280.0040.02516.22
5.6.270.0050.01014.77
5.6.260.0040.00814.54
5.6.250.0060.01816.33
5.6.240.0090.01916.11
5.6.230.0070.02116.17
5.6.220.0050.02816.12
5.6.210.0070.02716.12
5.6.200.0090.02216.24
5.6.190.0100.02316.21
5.6.180.0030.02816.25
5.6.170.0070.02216.22
5.6.160.0040.02516.20
5.6.150.0050.02616.21
5.6.140.0120.01916.19
5.6.130.0100.01816.20
5.6.120.0060.03016.23
5.6.110.0050.02616.32
5.6.100.0060.01816.24
5.6.90.0040.02216.19
5.6.80.0070.02415.96
5.6.70.0050.02616.08
5.6.60.0130.01916.05
5.6.50.0090.01315.98
5.6.40.0040.02515.99
5.6.30.0060.02516.06
5.6.20.0060.02215.96
5.6.10.0050.02616.08
5.6.00.0080.02216.06
5.5.380.0050.02215.28
5.5.370.0070.02915.34
5.5.360.0010.02315.33
5.5.350.0080.01615.22
5.5.340.0070.02615.43
5.5.330.0050.02615.35
5.5.320.0030.02715.45
5.5.310.0030.01715.34
5.5.300.0070.02515.37
5.5.290.0080.02415.34
5.5.280.0050.02415.43
5.5.270.0070.02615.47
5.5.260.0070.02315.42
5.5.250.0070.01915.34
5.5.240.0060.02215.14
5.5.230.0050.02515.18
5.5.220.0070.02215.25
5.5.210.0060.02415.24
5.5.200.0030.02115.24
5.5.190.0100.02215.21
5.5.180.0040.02715.22
5.5.170.0080.00513.54
5.5.160.0090.02215.16
5.5.150.0040.01815.18
5.5.140.0070.01915.30
5.5.130.0080.02315.18
5.5.120.0070.02115.20
5.5.110.0060.02515.20
5.5.100.0060.02615.14
5.5.90.0070.02415.17
5.5.80.0070.01815.17
5.5.70.0050.02515.31
5.5.60.0070.02315.13
5.5.50.0090.02015.20
5.5.40.0060.02615.14
5.5.30.0070.01915.15
5.5.20.0070.01415.20
5.5.10.0030.02815.16
5.5.00.0060.02515.10
5.4.450.0060.02314.49
5.4.440.0030.01714.51
5.4.430.0030.02514.52
5.4.420.0050.02314.54
5.4.410.0070.01914.43
5.4.400.0060.02114.40
5.4.390.0080.01814.40
5.4.380.0080.01814.35
5.4.370.0050.02314.39
5.4.360.0070.02314.34
5.4.350.0070.02214.37
5.4.340.0060.02414.37
5.4.330.0030.00712.84
5.4.320.0050.01514.39
5.4.310.0040.02314.41
5.4.300.0040.02314.43
5.4.290.0060.02214.38
5.4.280.0040.02414.43
5.4.270.0030.02614.41
5.4.260.0070.02214.35
5.4.250.0060.02214.38
5.4.240.0060.02314.38
5.4.230.0060.02414.39
5.4.220.0050.02414.39
5.4.210.0030.02314.42
5.4.200.0050.02114.38
5.4.190.0030.02614.41
5.4.180.0050.02114.35
5.4.170.0060.02314.38
5.4.160.0050.02014.34
5.4.150.0030.02514.45
5.4.140.0040.02213.71
5.4.130.0040.01413.75
5.4.120.0020.01813.75
5.4.110.0060.02013.74
5.4.100.0020.02213.71
5.4.90.0050.02113.70
5.4.80.0060.01713.73
5.4.70.0040.01413.69
5.4.60.0030.01813.71
5.4.50.0050.02113.69
5.4.40.0070.02013.73
5.4.30.0080.02013.74
5.4.20.0040.01813.72
5.4.10.0070.02113.74
5.4.00.0070.01813.60
5.3.290.0060.02013.29
5.3.280.0050.02113.31
5.3.270.0050.02313.31
5.3.260.0050.02013.28
5.3.250.0030.02213.28
5.3.240.0040.02213.31
5.3.230.0050.02113.29
5.3.220.0070.02113.27
5.3.210.0040.02413.29
5.3.200.0040.02013.27
5.3.190.0030.02713.30
5.3.180.0020.02113.26
5.3.170.0040.02313.29
5.3.160.0040.01213.29
5.3.150.0070.01313.29
5.3.140.0040.02313.27
5.3.130.0040.02113.30
5.3.120.0020.02513.30
5.3.110.0050.02213.29
5.3.100.0030.01813.12
5.3.90.0040.02113.15
5.3.80.0050.02013.16
5.3.70.0060.01313.16
5.3.60.0070.02113.11
5.3.50.0070.01513.15
5.3.40.0030.02413.13
5.3.30.0030.02113.13
5.3.20.0040.02213.07
5.3.10.0050.02213.04
5.3.00.0040.02313.02
5.2.170.0030.03511.13
5.2.160.0050.03011.19
5.2.150.0070.03211.12
5.2.140.0050.03011.18
5.2.130.0030.03511.11
5.2.120.0040.03211.13
5.2.110.0050.03411.16
5.2.100.0030.01911.16
5.2.90.0030.03611.15
5.2.80.0070.03211.13
5.2.70.0050.03311.19
5.2.60.0050.03011.06
5.2.50.0030.03511.16
5.2.40.0080.02811.09
5.2.30.0070.03011.15
5.2.20.0050.03211.10
5.2.10.0050.03010.99
5.2.00.0030.03510.93
5.1.60.0020.02210.60
5.1.50.0000.02810.59
5.1.40.0030.02810.59
5.1.30.0070.02110.72
5.1.20.0030.01810.70
5.1.10.0030.03110.66
5.1.00.0050.02610.67
5.0.50.0050.0209.86
5.0.40.0020.0279.80
5.0.30.0030.0359.71
5.0.20.0030.0239.75
5.0.10.0030.0229.71
5.0.00.0020.0359.71
4.4.90.0000.0199.71
4.4.80.0000.0149.71
4.4.70.0030.0139.71
4.4.60.0030.0099.71
4.4.50.0050.0169.71
4.4.40.0020.0289.71
4.4.30.0000.0239.71
4.4.20.0010.0119.71
4.4.10.0000.0229.71
4.4.00.0000.0299.71
4.3.110.0030.0119.71
4.3.100.0070.0139.71
4.3.90.0020.0199.71
4.3.80.0020.0319.71
4.3.70.0030.0189.71
4.3.60.0050.0189.71
4.3.50.0020.0199.71
4.3.40.0020.0229.71
4.3.30.0000.0169.71
4.3.20.0020.0219.71
4.3.10.0020.0159.71
4.3.00.0030.0159.71

preferences:
50.08 ms | 401 KiB | 5 Q