3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rows = [ [ 'id' => '1', 'file' => 'file_1_no_subfolder.doc', 'parent_id' => 0, ], [ 'id' => '2', 'file' => 'file_2_no_subfolder.doc', 'parent_id' => 0, ], [ 'id' => '3', 'file' => 'folder-1', 'parent_id' => 0, ], [ 'id' => '4', 'file' => 'folder-1_file_1.doc', 'parent_id' => 3, ], [ 'id' => '5', 'file' => 'folder-1_file_2.doc', 'parent_id' => 3, ], [ 'id' => '6', 'file' => 'folder-1_file_3.doc', 'parent_id' => 3, ], [ 'id' => '7', 'file' => 'folder-2', 'parent_id' => 0, ], [ 'id' => 8, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], [ 'id' => 9, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], [ 'id' => 10, 'file' => 'folder-2_file-1.doc', 'parent_id' => 7, ], ]; function buildTree(array $elements, $parentId = 0) { $branch = array(); foreach ($elements as $element) { if ($element['parent_id'] == $parentId) { $children = buildTree($elements, $element['id']); if ($children) { $element['children'] = $children; } $branch[] = $element; } } return $branch; } $tree = buildTree($rows); print_r( $tree );

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)
8.5.00.0150.00720.20
8.4.150.0020.00114.05
8.4.140.0160.01117.80
8.4.130.0060.00217.75
8.4.120.0070.00920.85
8.4.110.0100.01022.39
8.4.100.0130.00617.61
8.4.90.0110.01020.32
8.4.80.0050.00318.82
8.4.70.0100.01219.13
8.4.60.0130.00718.56
8.4.50.0130.00818.81
8.4.40.0070.00317.79
8.4.30.0000.00920.78
8.4.20.0030.00619.82
8.4.10.0100.00617.63
8.3.280.0110.01118.56
8.3.270.0120.00716.61
8.3.260.0120.00716.66
8.3.250.0110.00719.02
8.3.240.0130.00616.72
8.3.230.0130.00618.57
8.3.220.0050.00319.09
8.3.210.0040.00518.59
8.3.200.0040.00516.75
8.3.190.0100.00819.00
8.3.180.0130.00619.04
8.3.170.0060.00918.77
8.3.160.0120.00317.07
8.3.150.0000.00817.07
8.3.140.0160.00317.42
8.3.130.0090.00018.38
8.3.120.0030.00620.80
8.3.110.0090.00020.94
8.3.100.0050.00324.06
8.3.90.0060.00326.77
8.3.80.0000.01018.56
8.3.70.0110.00718.06
8.3.60.0090.00616.63
8.3.50.0040.01120.04
8.3.40.0080.00820.34
8.3.30.0100.00718.62
8.3.20.0000.00724.18
8.3.10.0080.00024.66
8.3.00.0060.00326.16
8.2.290.0100.00920.22
8.2.280.0080.00719.95
8.2.270.0090.00916.64
8.2.260.0060.00917.23
8.2.250.0040.00416.78
8.2.240.0030.00617.17
8.2.230.0050.00322.58
8.2.220.0060.00337.54
8.2.210.0070.00726.77
8.2.200.0090.00016.63
8.2.190.0090.00616.73
8.2.180.0110.00325.92
8.2.170.0040.01119.08
8.2.160.0110.00422.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00018.95
8.2.110.0050.00520.40
8.2.100.0090.00320.53
8.1.330.0110.00822.01
8.1.320.0100.00916.40
8.1.310.0040.00418.59
8.1.300.0030.01220.18
8.1.290.0030.00630.84
8.1.280.0120.00325.92
8.1.270.0070.00023.99
8.1.260.0060.00926.35
8.1.250.0000.00828.09
8.1.240.0110.00019.01
8.1.230.0040.00718.62
8.1.10.0050.00317.43

preferences:
31.48 ms | 403 KiB | 5 Q