3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = [ 'fruits' => [ 'apple' => 'red', 'banana' => 'yellow' ], 'numbers' => [1, 2] ]; $array2 = [ 'fruits' => [ 'orange' => 'orange', 'apple' => 'green' // Should overwrite 'red' ], ]; $array3 = [ 'numbers' => [2, 3, 4], // Should extend, not replace 'colors' => ['blue', 'purple'] // New key should be added ]; function mergeNestedArraysInefficient(array $array, array ...$otherArrays) { foreach ($otherArrays as $other) { if (array_is_list($other)) { $array = array_values(array_unique(array_merge($array, $other))); continue; } foreach ($other as $k => $v) { if (is_array($v) && key_exists($k, $array)) { $array[$k] = mergeNestedArraysInefficient($array[$k], $v); } else { $array[$k] = $v; } } } return $array; } var_export(mergeNestedArraysInefficient($array1, $array2, $array3));

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)
8.4.120.0130.00820.79
8.4.110.0040.00524.00
8.4.100.0120.00917.57
8.4.90.0110.01020.84
8.4.80.0090.01122.51
8.4.70.0130.00719.07
8.4.60.0100.01020.82
8.4.50.0150.00718.89
8.4.40.0070.01317.64
8.4.30.0070.01420.52
8.4.20.0110.01119.42
8.4.10.0090.00019.43
8.3.250.0030.00518.79
8.3.240.0150.00516.72
8.3.230.0100.00616.66
8.3.220.0100.00919.01
8.3.210.0080.00316.59
8.3.200.0060.01216.61
8.3.190.0100.00917.25
8.3.180.0090.00919.17
8.3.170.0090.00920.66
8.3.160.0090.00617.26
8.3.150.0090.00917.08
8.3.140.0080.00318.49
8.3.130.0080.00018.49
8.3.120.0130.00319.23
8.3.110.0030.01316.76
8.3.100.0060.00624.06
8.3.90.0110.00426.77
8.3.80.0050.00518.18
8.3.70.0120.00316.50
8.3.60.0040.01118.60
8.3.50.0100.00718.41
8.3.40.0130.00318.84
8.3.30.0150.00319.05
8.3.20.0070.01121.90
8.3.10.0120.00321.85
8.3.00.0120.00419.09
8.2.290.0100.00916.63
8.2.280.0100.01119.85
8.2.270.0090.00917.49
8.2.260.0000.00817.49
8.2.250.0030.00618.41
8.2.240.0100.00017.16
8.2.230.0130.00720.94
8.2.220.0090.01237.54
8.2.210.0040.00426.77
8.2.200.0040.00418.54
8.2.190.0040.01116.75
8.2.180.0110.00718.41
8.2.170.0130.00318.79
8.2.160.0150.00020.14
8.2.150.0060.01019.13
8.2.140.0110.00420.52
8.2.130.0070.00720.47
8.2.120.0070.00719.11
8.2.110.0070.00719.30
8.2.100.0150.00019.14
8.2.90.0040.01218.80
8.2.80.0110.00419.09
8.2.70.0000.01518.89
8.2.60.0150.00018.94
8.2.50.0060.00919.13
8.2.40.0130.00318.91
8.2.30.0060.01018.79
8.2.20.0090.00618.52
8.2.10.0060.01018.73
8.2.00.0160.00018.83
8.1.330.0050.00416.32
8.1.320.0130.00716.32
8.1.310.0040.01118.44
8.1.300.0160.00019.46
8.1.290.0080.00030.84
8.1.280.0150.00025.92
8.1.270.0130.00322.24
8.1.260.0130.00321.95
8.1.250.0140.00022.02
8.1.240.0150.00018.60
8.1.230.0080.00818.80
8.1.220.0060.00918.82
8.1.210.0110.00418.55
8.1.200.0150.00018.71
8.1.190.0110.00418.76
8.1.180.0040.01118.31
8.1.170.0120.00318.69
8.1.160.0120.00418.53
8.1.150.0120.00318.62
8.1.140.0070.00718.71
8.1.130.0040.01118.91
8.1.120.0130.00318.38
8.1.110.0080.00818.45
8.1.100.0060.00919.74
8.1.90.0100.00718.28
8.1.80.0070.01119.80
8.1.70.0120.00318.80
8.1.60.0040.01118.66
8.1.50.0070.00718.68
8.1.40.0100.00718.76
8.1.30.0060.01218.90
8.1.20.0200.00019.83
8.1.10.0100.01018.80
8.1.00.0080.00818.49

preferences:
25.35 ms | 403 KiB | 5 Q