3v4l.org

run code in 300+ PHP versions simultaneously
<?php $json = '[ {"id":3633,"name":"Mobile phones and accessories","left":1,"right":18,"level":1,"elements":0}, {"id":3638,"name":"Mobile phones","left":2,"right":3,"level":2,"elements":174}, {"id":21396,"name":"Tablets","left":19,"right":24,"level":1,"elements":0}, {"id":21450,"name":"Some Tablets","left":20,"right":21,"level":2,"elements":8}, {"id":21450,"name":"other Tablets","left":20,"right":21,"level":2,"elements":8} ]'; $data = new ArrayIterator(json_decode($json, true)); function buildTree(iterator $data, int $level = 1): array { $tree = array(); while ($data->valid()) { $item = $data->current(); if ($item['level'] < $level) return $tree; if ($item['level'] === $level) { $data->next(); $tree[] = [ 'item' => $item, 'children' => buildTree($data, $level + 1), ]; } } return $tree; } $tree = buildTree($data); 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)
8.4.120.0120.00624.12
8.4.110.0140.00622.54
8.4.100.0060.00717.73
8.4.90.0110.01118.85
8.4.80.0110.00918.02
8.4.70.0110.00817.70
8.4.60.0170.00418.88
8.4.50.0110.00919.45
8.4.40.0130.00617.51
8.4.30.0030.01620.44
8.4.20.0030.00619.50
8.4.10.0030.00622.13
8.3.250.0050.00419.04
8.3.240.0120.00816.90
8.3.230.0110.00816.30
8.3.220.0080.01117.12
8.3.210.0080.01116.84
8.3.200.0120.00716.29
8.3.190.0140.00416.84
8.3.180.0080.00716.61
8.3.170.0060.01317.22
8.3.160.0130.00418.31
8.3.150.0030.01618.84
8.3.140.0040.00416.56
8.3.130.0000.00816.75
8.3.120.0100.00018.78
8.3.110.0090.00620.94
8.3.100.0080.00316.58
8.3.90.0040.00418.56
8.3.80.0070.00718.55
8.3.70.0040.01116.50
8.3.60.0090.00618.50
8.3.50.0150.00616.48
8.3.40.0070.00720.18
8.3.30.0130.00720.38
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.290.0050.00320.57
8.2.280.0110.00618.42
8.2.270.0100.01017.22
8.2.260.0110.00419.06
8.2.250.0100.00718.61
8.2.240.0090.00617.01
8.2.230.0050.00322.58
8.2.220.0060.00324.06
8.2.210.0050.00326.77
8.2.200.0120.00316.75
8.2.190.0150.00618.16
8.2.180.0070.00716.63
8.2.170.0090.00618.93
8.2.160.0110.00422.96
8.2.150.0080.00025.66
8.2.140.0030.00524.66
8.2.130.0030.00526.16
8.2.120.0040.00419.36
8.2.110.0090.00022.21
8.2.100.0090.00020.56
8.2.70.0090.00579.33
8.1.330.0080.01222.06
8.1.320.0130.00816.15
8.1.310.0090.00616.97
8.1.300.0000.01117.83
8.1.290.0070.00418.88
8.1.280.0180.00025.92
8.1.270.0130.00022.00
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00318.48
8.1.230.0040.00718.53

preferences:
32.33 ms | 403 KiB | 5 Q