3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = [ "Friday" => ["Breakfast" => 32, "Lunch" => 45], "Sunday" => ["Lunch" => 12] ]; $arr2 = [ "Sunday" => ["Breakfast" => 7, "Lunch" => 3], "Monday" => ["Breakfast" => 12] ]; $arr3 = [ "Monday" => ["Breakfast" => 31] ]; $result = []; foreach (array_merge([$arr1], [$arr2], [$arr3]) as $array) { foreach ($array as $day => $meals) { foreach ($meals as $meal => $count) { $result[$day][$meal] = ($result[$day][$meal] ?? 0) + $count; } } } var_export($result);

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)
8.4.130.0100.00918.85
8.4.120.0130.00624.11
8.4.110.0030.00518.86
8.4.100.0120.01017.70
8.4.90.0130.00720.48
8.4.80.0100.00818.82
8.4.70.0060.00318.81
8.4.60.0060.00820.30
8.4.50.0110.01324.38
8.4.40.0190.00017.55
8.4.30.0030.00520.48
8.4.20.0080.01119.63
8.4.10.0090.00019.22
8.3.260.0130.00416.87
8.3.250.0100.00918.70
8.3.240.0090.00917.25
8.3.230.0120.00916.69
8.3.220.0100.00818.89
8.3.210.0140.00616.84
8.3.200.0080.00816.68
8.3.190.0030.00517.12
8.3.180.0080.01118.87
8.3.170.0110.00317.25
8.3.160.0140.00418.73
8.3.150.0150.00317.17
8.3.140.0130.00316.73
8.3.130.0030.00617.63
8.3.120.0110.00417.74
8.3.110.0120.00418.75
8.3.100.0150.00320.21
8.3.90.0130.00422.47
8.3.80.0130.00417.07
8.3.70.0130.00716.55
8.3.60.0090.00916.49
8.3.50.0110.00921.29
8.3.40.0110.00520.64
8.3.30.0140.00218.03
8.3.20.0070.00521.60
8.3.10.0090.00420.91
8.3.00.0080.00421.70
8.2.290.0110.00717.07
8.2.280.0060.01220.13
8.2.270.0150.00416.82
8.2.260.0110.00718.68
8.2.250.0210.00016.77
8.2.240.0080.00616.92
8.2.230.0090.00520.40
8.2.220.0060.00826.98
8.2.210.0100.00421.56
8.2.200.0090.00617.13
8.2.190.0090.00818.38
8.2.180.0090.01016.39
8.2.170.0090.00918.37
8.2.160.0050.01221.13
8.2.150.0110.00221.54
8.2.140.0060.00721.08
8.2.130.0050.00922.61
8.2.120.0140.00321.69
8.2.110.0100.00418.26
8.2.100.0090.00718.37
8.2.90.0120.00117.56
8.2.80.0120.00118.17
8.2.70.0100.00417.45
8.2.60.0090.00417.70
8.2.50.0100.00417.66
8.2.40.0060.00618.59
8.2.30.0070.00517.76
8.2.20.0100.00217.78
8.2.10.0050.00718.24
8.2.00.0070.00519.16
8.1.330.0070.01221.90
8.1.320.0130.00618.24
8.1.310.0080.00016.93
8.1.300.0090.00418.02
8.1.290.0070.00623.44
8.1.280.0150.00121.82
8.1.270.0090.00420.41
8.1.260.0150.00422.57
8.1.250.0130.00122.67
8.1.240.0110.00218.05
8.1.230.0100.00417.58
8.1.220.0080.00517.54
8.1.210.0110.00317.90
8.1.200.0070.00717.26
8.1.190.0070.00517.07
8.1.180.0080.00617.51
8.1.170.0120.00217.80
8.1.160.0100.00218.15
8.1.150.0090.00318.11
8.1.140.0080.00418.02
8.1.130.0100.00218.63
8.1.120.0040.00818.13
8.1.110.0070.00517.28
8.1.100.0080.00417.29
8.1.90.0030.00917.18
8.1.80.0120.00017.20
8.1.70.0090.00317.30
8.1.60.0130.00117.28
8.1.50.0090.00417.49
8.1.40.0100.00417.47
8.1.30.0080.00517.48
8.1.20.0090.00517.50
8.1.10.0090.00417.42
8.1.00.0070.00617.39
8.0.300.0090.00317.50
8.0.290.0090.00416.67
8.0.280.0100.00417.50
8.0.270.0070.00418.18
8.0.260.0080.00318.40
8.0.250.0060.00517.54
8.0.240.0020.01016.67
8.0.230.0100.00217.61
8.0.220.0100.00516.59
8.0.210.0090.00516.57
8.0.200.0090.00516.64
8.0.190.0070.00616.57
8.0.180.0080.00316.69
8.0.170.0090.00316.55
8.0.160.0070.00516.75
8.0.150.0090.00417.42
8.0.140.0080.00416.65
8.0.130.0070.00514.88
8.0.120.0090.00317.37
8.0.110.0080.00416.37
8.0.100.0050.00716.56
8.0.90.0070.00516.49
8.0.80.0100.00616.74
8.0.70.0060.00616.53
8.0.60.0060.00616.56
8.0.50.0080.00416.46
8.0.30.0130.00616.65
8.0.20.0140.00517.51
8.0.10.0050.00716.67
8.0.00.0110.00916.66
7.4.330.0090.00216.74
7.4.320.0090.00216.37
7.4.300.0080.00416.40
7.4.290.0090.00216.26
7.4.280.0090.00516.33
7.4.270.0060.00616.32
7.4.260.0100.00414.67
7.4.250.0090.00316.32
7.4.240.0080.00416.32
7.4.230.0080.00417.32
7.4.220.0050.00416.38
7.4.210.0080.00816.40
7.4.200.0090.00216.21
7.4.190.0120.00316.05
7.4.180.0120.00416.07
7.4.160.0120.00616.32
7.4.150.0170.00016.24
7.4.140.0130.00316.14
7.4.130.0100.00916.34
7.4.120.0110.00716.34
7.4.110.0120.00716.39
7.4.100.0160.00416.35
7.4.90.0110.00916.29
7.4.80.0110.00916.37
7.4.70.0180.00516.39
7.4.60.0140.00616.36
7.4.50.0130.01216.27
7.4.40.0160.00516.36
7.4.30.0130.00816.43
7.4.20.0110.01016.43
7.4.10.0130.01216.38
7.4.00.0110.00716.39
7.3.330.0140.00316.13
7.3.320.0150.00514.67
7.3.310.0100.00816.29
7.3.300.0130.00216.17
7.3.290.0150.00916.29
7.3.280.0290.01116.05
7.3.270.0370.00416.05
7.3.260.0160.01216.24
7.3.250.0190.00816.25
7.3.240.0160.00916.31
7.3.230.0180.00816.35
7.3.220.0200.00516.27
7.3.210.0150.01116.34
7.3.200.0190.00616.38
7.3.190.0140.01216.41
7.3.180.0190.01216.30
7.3.170.0180.01116.28
7.3.160.0230.00716.83
7.3.150.0150.01216.29
7.3.140.0170.00716.36
7.3.130.0180.00516.26
7.3.120.0150.00716.23
7.3.110.0100.01016.20
7.3.100.0150.00616.33
7.3.90.0170.00516.29
7.3.80.0140.00616.19
7.3.70.0100.01116.24
7.3.60.0200.01316.29
7.3.50.0140.00716.27
7.3.40.0200.00416.27
7.3.30.0150.00716.25
7.3.20.0110.00916.88
7.3.10.0140.00616.97
7.3.00.0150.00816.88

preferences:
29.96 ms | 403 KiB | 5 Q