3v4l.org

run code in 300+ PHP versions simultaneously
<?php $multiarr = [ ['Fruit' => 'Apples'], ['Fruit' => 'Bananas'], ['Fruit' => 'Oranges'], ['Veg' => 'Carrot'], //['Veg' => 'Leek'], ]; foreach ($multiarr as $array) { foreach ($array as $key=>$val) { $newarray[$key][] = $val; } } var_export($newarray); echo "\n---\n"; var_export(array_merge_recursive(...$multiarr));

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)
8.4.120.0120.00820.70
8.4.110.0110.01118.48
8.4.100.0050.00417.90
8.4.90.0140.00620.41
8.4.80.0110.00820.53
8.4.70.0130.00718.79
8.4.60.0140.00620.49
8.4.50.0080.01120.61
8.4.40.0040.00419.19
8.4.30.0040.01520.46
8.4.20.0070.01317.77
8.4.10.0090.00020.67
8.3.250.0110.00617.26
8.3.240.0130.00616.50
8.3.230.0110.00616.78
8.3.220.0080.00919.05
8.3.210.0110.00716.50
8.3.200.0030.00616.85
8.3.190.0110.01018.97
8.3.180.0110.00918.54
8.3.170.0110.00717.23
8.3.160.0110.00718.29
8.3.150.0180.00016.76
8.3.140.0180.00017.34
8.3.130.0040.00418.46
8.3.120.0150.00318.68
8.3.110.0090.00020.94
8.3.100.0030.00624.06
8.3.90.0060.01326.77
8.3.80.0060.00316.75
8.3.70.0030.01216.63
8.3.60.0070.01018.68
8.3.50.0130.00623.57
8.3.40.0070.01518.57
8.3.30.0110.00418.79
8.3.20.0070.00021.08
8.3.10.0040.00421.73
8.3.00.0080.00018.67
8.2.290.0090.00617.07
8.2.280.0130.00820.13
8.2.270.0110.00716.99
8.2.260.0150.00416.86
8.2.250.0030.00616.80
8.2.240.0070.00317.16
8.2.230.0060.00322.58
8.2.220.0060.00337.54
8.2.210.0040.00426.77
8.2.200.0080.00016.88
8.2.190.0130.00716.75
8.2.180.0090.00918.13
8.2.170.0060.01018.91
8.2.160.0120.00322.96
8.2.150.0110.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00419.95
8.2.110.0060.00322.14
8.2.100.0120.00017.59
8.2.90.0000.00817.88
8.2.80.0000.00818.91
8.2.70.0030.00617.50
8.2.60.0070.00018.03
8.2.50.0080.00018.07
8.2.40.0060.00318.16
8.2.30.0050.00218.00
8.2.20.0040.00418.02
8.2.10.0030.00619.28
8.2.00.0000.01019.36
8.1.330.0130.00616.37
8.1.320.0100.00917.88
8.1.310.0070.00718.21
8.1.300.0030.00619.30
8.1.290.0000.00918.88
8.1.280.0030.01025.92
8.1.270.0000.00720.72
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0100.00023.84
8.1.230.0080.00319.07
8.1.220.0040.00417.79
8.1.210.0030.00618.77
8.1.200.0050.00517.35
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0000.00918.76
8.1.160.0040.00418.77
8.1.150.0080.00018.84
8.1.140.0000.00918.88
8.1.130.0040.00420.27
8.1.120.0070.00017.48
8.1.110.0070.00017.45
8.1.100.0040.00417.48
8.1.90.0050.00217.42
8.1.80.0000.00817.50
8.1.70.0030.00317.46
8.1.60.0040.00417.58
8.1.50.0030.00617.41
8.1.40.0080.00017.41
8.1.30.0080.00017.52
8.1.20.0080.00017.52
8.1.10.0080.00017.54
8.1.00.0040.00417.46
8.0.300.0030.00518.77
8.0.290.0030.00516.75
8.0.280.0000.00718.43
8.0.270.0000.00717.96
8.0.260.0000.00620.07
8.0.250.0000.00716.93
8.0.240.0040.00416.96
8.0.230.0030.00316.95
8.0.220.0030.00316.91
8.0.210.0000.00716.79
8.0.200.0030.00316.82
8.0.190.0000.00716.84
8.0.180.0000.00816.93
8.0.170.0060.00316.89
8.0.160.0040.00416.86
8.0.150.0040.00416.80
8.0.140.0050.00216.90
8.0.130.0050.00013.29
8.0.120.0000.00816.86
8.0.110.0030.00516.89
8.0.100.0080.00016.88
8.0.90.0060.00316.76
8.0.80.0110.00516.93
8.0.70.0050.00316.92
8.0.60.0040.00416.91
8.0.50.0000.00716.78
8.0.30.0150.00917.27
8.0.20.0110.01217.15
8.0.10.0070.00017.05
8.0.00.0110.00716.87
7.4.330.0110.00524.25
7.4.320.0030.00316.61
7.4.300.0030.00316.43
7.4.290.0040.00416.50
7.4.280.0080.00016.50
7.4.270.0000.00716.51
7.4.260.0030.00313.21
7.4.250.0000.00716.46
7.4.240.0030.00316.54
7.4.230.0030.00316.70
7.4.220.0040.00316.63
7.4.210.0050.01116.54
7.4.200.0030.00316.59
7.4.130.0110.00816.50
7.4.120.0170.00716.58
7.4.110.0100.00916.48
7.4.100.0040.01316.36
7.4.90.0170.00016.52
7.4.80.0210.00319.39
7.4.70.0130.00316.43
7.4.60.0130.01016.38
7.4.50.0060.00916.30
7.4.40.0160.00516.65
7.4.20.0100.00616.49
7.4.10.0160.00716.34
7.4.00.0080.01616.55
7.3.330.0030.00316.38
7.3.320.0000.00513.16
7.3.310.0000.00716.47
7.3.300.0000.00716.23
7.3.290.0050.00216.28
7.3.280.0000.01416.33
7.3.260.0080.00816.60
7.3.240.0110.00916.46
7.3.230.0070.01016.46
7.3.210.0140.00616.50
7.3.200.0160.00716.64
7.3.190.0090.00916.32
7.3.180.0040.01116.45
7.3.170.0090.00916.57
7.3.160.0070.00716.36
7.3.140.0030.01316.36
7.3.130.0100.01016.32
7.3.120.0100.01316.51
7.3.110.0090.00916.29
7.3.100.0140.00916.48
7.3.90.0090.01316.34
7.3.80.0150.00716.59
7.3.70.0060.01516.31
7.3.60.0090.01216.34
7.3.50.0000.01616.16
7.3.40.0000.01616.15
7.3.30.0130.00316.42
7.3.20.0100.00716.16
7.3.10.0100.01016.24
7.3.00.0070.01016.37
7.2.330.0060.01216.35
7.2.320.0140.00416.64
7.2.310.0100.01016.45
7.2.300.0120.00616.82
7.2.290.0150.00016.45
7.2.270.0070.01716.38
7.2.260.0110.01116.29
7.2.250.0070.01516.58
7.2.240.0110.00716.43
7.2.230.0060.01816.46
7.2.220.0100.01416.44
7.2.210.0000.02216.64
7.2.200.0120.00916.44
7.2.190.0080.00816.64
7.2.180.0060.01116.50
7.2.170.0170.00016.48
7.2.160.0100.00716.67
7.2.150.0040.01816.20
7.2.140.0040.01816.28
7.2.130.0140.00316.38
7.2.120.0060.01716.50
7.2.110.0090.00916.55
7.2.100.0100.01316.74
7.2.90.0140.01016.57
7.2.80.0150.00916.53
7.2.70.0110.01416.79
7.2.60.0070.01416.57
7.2.50.0060.01616.41
7.2.40.0070.01016.71
7.2.30.0190.00316.39
7.2.20.0100.01316.33
7.2.10.0090.01516.43
7.2.00.0070.01116.52

preferences:
27.95 ms | 403 KiB | 5 Q