3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'parent' => 'Basic', 'parentId' => 1, 'child' => 'Birthday', 'childId' => 2, ], [ 'parent' => 'Basic', 'parentId' => 1, 'child' => 'Gender', 'childId' => 3, ], [ 'parent' => 'Geo', 'parentId' => 10, 'child' => 'Current City', 'childId' => 11, ], [ 'parent' => 'Known me', 'parentId' => 5, 'child' => 'My personality', 'childId' => 7, ], [ 'parent' => 'Known me', 'parentId' => 5, 'child' => 'Best life moment', 'childId' => 8, ], ]; $result = []; foreach ($array as $row) { if (!isset($result[$row['parentId']])) { $result[$row['parentId']] = [ 'parent' => $row['parent'], 'parentId' => $row['parentId'], 'child' => [$row['child']] ]; } else { $result[$row['parentId']]['child'][] = $row['child']; } } var_export(array_values($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)
8.4.130.0100.00917.85
8.4.120.0120.00920.46
8.4.110.0060.00420.66
8.4.100.0140.00717.48
8.4.90.0110.00918.54
8.4.80.0040.00617.65
8.4.70.0080.00718.13
8.4.60.0100.00918.73
8.4.50.0120.00618.56
8.4.40.0140.00617.54
8.4.30.0060.01518.83
8.4.20.0130.00618.91
8.4.10.0100.01019.54
8.3.260.0110.00516.74
8.3.250.0100.00919.02
8.3.240.0050.00416.93
8.3.230.0130.00616.45
8.3.220.0100.00917.48
8.3.210.0040.00316.50
8.3.200.0040.00416.47
8.3.190.0050.00317.04
8.3.180.0060.00318.43
8.3.170.0060.01220.90
8.3.160.0170.00316.57
8.3.150.0160.00318.61
8.3.140.0000.00819.23
8.3.130.0030.00618.29
8.3.120.0000.00918.91
8.3.110.0040.00420.94
8.3.100.0070.00324.06
8.3.90.0040.00426.77
8.3.80.0070.00417.97
8.3.70.0180.00416.63
8.3.60.0120.00318.48
8.3.50.0040.01118.50
8.3.40.0070.00720.46
8.3.30.0000.01420.00
8.3.20.0090.00924.18
8.3.10.0030.00524.66
8.3.00.0060.00324.66
8.2.290.0120.00720.22
8.2.280.0110.00920.17
8.2.270.0110.00719.15
8.2.260.0130.00316.50
8.2.250.0110.00716.82
8.2.240.0090.00617.06
8.2.230.0050.00222.58
8.2.220.0060.00337.54
8.2.210.0000.00826.77
8.2.200.0060.00318.54
8.2.190.0090.01216.63
8.2.180.0100.01018.54
8.2.170.0140.00719.08
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0060.00324.66
8.2.130.0030.00524.66
8.2.120.0050.00324.66
8.2.110.0030.00524.66
8.2.100.0030.00624.66
8.2.90.0040.00424.66
8.2.80.0040.00424.66
8.2.70.0060.00324.66
8.2.60.0060.00324.66
8.2.50.0060.00324.66
8.2.40.0030.00624.66
8.2.30.0060.00324.66
8.2.20.0050.00324.66
8.2.10.0090.00024.66
8.2.00.0030.00624.66
8.1.330.0090.00621.75
8.1.320.0040.00518.04
8.1.310.0040.00416.52
8.1.300.0040.00418.41
8.1.290.0050.00530.84
8.1.280.0040.01425.92
8.1.270.0050.00324.66
8.1.260.0050.00324.66
8.1.250.0060.00324.66
8.1.240.0050.00324.66
8.1.230.0030.00624.66
8.1.220.0060.00324.66
8.1.210.0030.00624.66
8.1.200.0040.00424.66
8.1.190.0040.00424.66
8.1.180.0060.00324.66
8.1.170.0060.00324.66
8.1.160.0030.00624.66
8.1.150.0090.00024.66
8.1.140.0030.00624.66
8.1.130.0080.00024.66
8.1.120.0030.00624.66
8.1.110.0040.00424.66
8.1.100.0040.00424.66
8.1.90.0040.00424.66
8.1.80.0040.00424.66
8.1.70.0040.00424.66
8.1.60.0030.00624.66
8.1.50.0030.00624.66
8.1.40.0090.00024.66
8.1.30.0060.00324.66
8.1.20.0050.00524.66
8.1.10.0080.00024.66
8.1.00.0000.00824.66

preferences:
51.74 ms | 403 KiB | 5 Q