3v4l.org

run code in 300+ PHP versions simultaneously
<?php function findParent(&$array,$whos_your_daddy=0,$baby=[]){ // make $array modifiable foreach($array as $i=>&$row){ // make $row modifiable if($whos_your_daddy){ if($row['id']==$whos_your_daddy){ // found parent $row['nodes'][]=$baby; }elseif(isset($row['nodes'])){ // go down rabbit hole looking for parent findParent($row['nodes'],$whos_your_daddy,$baby); } }elseif($row['parent_id']){ // child requires adoption unset($array[$i]); // remove child from level because it will be store elsewhere and won't be its own parent (reduce iterations in next loop & avoid infinite recursion) findParent($array,$row['parent_id'],$row); } } return $array; } // $db->query('SELECT id,name_a AS name,parent_id FROM accounts_tree ORDER BY id'); // for($resultset=[]; $row=$res->fetch_assoc(); $resultset[]=$row); // inspired by: http://php.net/manual/en/mysqli-result.fetch-assoc.php#112924 $resultset=[ ['id'=>1,'name'=>'folder 1','parent_id'=>0], ['id'=>2,'name'=>'folder 2','parent_id'=>0], ['id'=>3,'name'=>'sub 1-1','parent_id'=>1], ['id'=>4,'name'=>'sub 2-1','parent_id'=>2], ['id'=>5,'name'=>'Sub 1-1-1','parent_id'=>3], ['id'=>6,'name'=>'folder 3','parent_id'=>0], ['id'=>7,'name'=>'sub 1-1-1-1','parent_id'=>5] ]; print_r(findParent($resultset));

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)
8.3.60.0040.01118.55
8.3.50.0000.01818.32
8.3.40.0110.00718.97
8.3.30.0110.00418.67
8.3.20.0040.00421.85
8.3.10.0080.00023.66
8.3.00.0040.00421.90
8.2.180.0070.00716.49
8.2.170.0150.00722.96
8.2.160.0160.00320.52
8.2.150.0140.00324.18
8.2.140.0080.00024.66
8.2.130.0000.00720.55
8.2.120.0070.00026.35
8.2.110.0100.00020.34
8.2.100.0080.00418.28
8.2.90.0000.00819.97
8.2.80.0000.00818.16
8.2.70.0080.00018.03
8.2.60.0080.00018.22
8.2.50.0070.00018.16
8.2.40.0000.00720.42
8.2.30.0000.00719.35
8.2.20.0040.00418.13
8.2.10.0060.00318.19
8.2.00.0000.00718.16
8.1.280.0030.01425.92
8.1.270.0040.00423.79
8.1.260.0000.00726.35
8.1.250.0030.00628.09
8.1.240.0060.00320.67
8.1.230.0060.00622.18
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0030.00617.35
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0050.00218.91
8.1.150.0000.00818.89
8.1.140.0070.00018.99
8.1.130.0000.00718.95
8.1.120.0080.00517.85
8.1.110.0080.00517.87
8.1.100.0080.00518.49
8.1.90.0080.00417.87
8.1.80.0080.00517.91
8.1.70.0070.00417.83
8.1.60.0100.00518.58
8.1.50.0040.01018.52
8.1.40.0100.00317.96
8.1.30.0110.00317.99
8.1.20.0070.00817.99
8.1.10.0100.00517.96
8.1.00.0100.00617.82
8.0.300.0030.00619.73
8.0.290.0040.00416.75
8.0.280.0030.00418.45
8.0.270.0070.00016.77
8.0.260.0000.00618.44
8.0.250.0040.00717.25
8.0.240.0040.00717.25
8.0.230.0040.00917.25
8.0.220.0070.00617.21
8.0.210.0090.00417.22
8.0.200.0050.00717.26
8.0.190.0090.00417.22
8.0.180.0070.00617.20
8.0.170.0070.00717.22
8.0.160.0060.00717.19
8.0.150.0030.00917.18
8.0.140.0120.00117.21
8.0.130.0060.00616.02
8.0.120.0060.00617.20
8.0.110.0070.00517.19
8.0.100.0090.00417.13
8.0.90.0080.00417.17
8.0.80.0120.00417.13
8.0.70.0050.00817.07
8.0.60.0060.00617.20
8.0.50.0090.00417.13
8.0.30.0140.00317.15
8.0.20.0100.00817.41
8.0.10.0070.00517.29
8.0.00.0100.00617.11
7.4.330.0000.00515.55
7.4.320.0080.00616.91
7.4.300.0060.00416.88
7.4.290.0090.00216.87
7.4.280.0070.00516.80
7.4.270.0090.00516.81
7.4.260.0110.00216.74
7.4.250.0110.00316.87
7.4.240.0050.00516.81
7.4.230.0060.00616.88
7.4.220.0080.00316.75
7.4.210.0100.00516.81
7.4.200.0070.00316.85
7.4.190.0050.00817.11
7.4.180.0080.00417.03
7.4.160.0070.00916.73
7.4.150.0070.00817.14
7.4.140.0110.00817.57
7.4.130.0090.00716.76
7.4.120.0110.00716.64
7.4.110.0090.00716.71
7.4.100.0090.00716.79
7.4.90.0090.00916.67
7.4.80.0090.00917.11
7.4.70.0110.00816.58
7.4.60.0080.01016.63
7.4.50.0100.00716.46
7.4.40.0120.00716.53
7.4.30.0090.01016.55
7.4.20.0100.00816.38
7.4.10.0100.00816.49
7.4.00.0100.01016.40
7.3.330.0090.00315.73
7.3.320.0040.00815.71
7.3.310.0080.00416.75
7.3.300.0070.00516.66
7.3.290.0110.00116.62
7.3.280.0100.00616.59
7.3.270.0140.00317.03
7.3.260.0090.00816.56
7.3.250.0120.00516.59
7.3.240.0110.00616.63
7.3.230.0120.00416.58
7.3.220.0090.00916.66
7.3.210.0110.00816.62
7.3.200.0100.00816.47
7.3.190.0110.00716.58
7.3.180.0110.00716.52
7.3.170.0120.00716.48
7.3.160.0100.00816.48
7.3.150.0080.01016.82
7.3.140.0070.01216.53
7.3.130.0090.00916.50
7.3.120.0100.01016.60
7.3.110.0110.00716.44
7.3.100.0140.00616.48
7.3.90.0100.00816.55
7.3.80.0080.00816.58
7.3.70.0070.01016.50
7.3.60.0090.00916.35
7.3.50.0130.00716.37
7.3.40.0120.00516.33
7.3.30.0110.00816.30
7.3.20.0100.00916.78
7.3.10.0160.00816.50
7.3.00.0170.00816.57
7.2.340.0110.00616.63
7.2.330.0110.00716.75
7.2.320.0150.00516.68
7.2.310.0090.00916.77
7.2.300.0120.00716.79
7.2.290.0100.00916.79
7.2.280.0100.00916.71
7.2.270.0120.00616.77
7.2.260.0110.00816.67
7.2.250.0110.01016.66
7.2.240.0130.00716.61
7.2.230.0110.00716.67
7.2.220.0110.00816.71
7.2.210.0060.01116.71
7.2.200.0130.00816.75
7.2.190.0120.00916.50
7.2.180.0110.00716.54
7.2.170.0100.00916.53
7.2.160.0110.00616.56
7.2.150.0130.00717.02
7.2.140.0100.00917.06
7.2.130.0160.01016.81
7.2.120.0150.00816.77
7.2.110.0180.00416.81
7.2.100.0130.00816.74
7.2.90.0170.00916.78
7.2.80.0130.00916.84
7.2.70.0200.00617.02
7.2.60.0150.01016.82
7.2.50.0150.00817.05
7.2.40.0160.01017.02
7.2.30.0170.00817.00
7.2.20.0190.00717.03
7.2.10.0170.00816.94
7.2.00.0220.00817.13
7.1.330.0130.01016.03
7.1.320.0140.00815.98
7.1.310.0220.00715.98
7.1.300.0150.00815.90
7.1.290.0140.00915.99
7.1.280.0180.01015.96
7.1.270.0220.00715.96
7.1.260.0180.00515.92
7.1.250.0230.00615.71
7.1.240.0210.00815.71
7.1.230.0180.00815.65
7.1.220.0210.00815.68
7.1.210.0220.01015.68
7.1.200.0190.00815.66
7.1.190.0220.00615.68
7.1.180.0220.00515.86
7.1.170.0200.01015.86
7.1.160.0310.00616.09
7.1.150.0220.00816.09
7.1.140.0210.00616.04
7.1.130.0220.00616.02
7.1.120.0200.00716.20
7.1.110.0240.00716.05
7.1.100.0210.00716.10
7.1.90.0210.00816.11
7.1.80.0230.00716.11
7.1.70.0200.00715.93
7.1.60.0200.00817.86
7.1.50.0230.00717.79
7.1.40.0200.00617.77
7.1.30.0200.00817.78
7.1.20.0230.00917.72
7.1.10.0240.00915.96
7.1.00.0170.01015.72
7.0.330.0290.00815.52
7.0.320.0170.00915.84
7.0.310.0260.00615.88
7.0.300.0210.00916.14
7.0.290.0190.00916.16
7.0.280.0200.00715.83
7.0.270.0180.00816.17
7.0.260.0200.00816.16
7.0.250.0180.01116.18
7.0.240.0180.01116.26
7.0.230.0200.00716.15
7.0.220.0190.00915.91
7.0.210.0170.00916.21
7.0.200.0230.00516.16
7.0.190.0180.00916.14
7.0.180.0200.00616.23
7.0.170.0170.01116.18
7.0.160.0210.00916.15
7.0.150.0210.00716.13
7.0.140.0270.00915.91
7.0.130.0200.00815.98
7.0.120.0170.01116.00
7.0.110.0180.00815.88
7.0.100.0190.00715.93
7.0.90.0200.00815.84
7.0.80.0180.00916.18
7.0.70.0180.00916.14
7.0.60.0180.00716.18
7.0.50.0190.00816.16
7.0.40.0200.00716.11
7.0.30.0200.00815.91
7.0.20.0200.00715.86
7.0.10.0160.01315.84
7.0.00.0190.00815.83
5.6.400.0180.01116.11
5.6.390.0200.01215.92
5.6.380.0200.00915.82
5.6.370.0160.01216.31
5.6.360.0180.01116.09
5.6.350.0210.00716.15
5.6.340.0170.01216.09
5.6.330.0170.01016.31
5.6.320.0180.01216.12
5.6.310.0180.01016.17
5.6.300.0180.01216.06
5.6.290.0200.00816.05
5.6.280.0170.01016.24
5.6.270.0190.01016.18
5.6.260.0150.01116.17
5.6.250.0160.01116.15
5.6.240.0170.01216.25
5.6.230.0180.01016.22
5.6.220.0200.00816.22
5.6.210.0150.01216.10
5.6.200.0170.01116.16
5.6.190.0200.00916.25
5.6.180.0170.00916.25
5.6.170.0180.00916.21
5.6.160.0150.01216.23
5.6.150.0200.00816.22
5.6.140.0240.00916.15
5.6.130.0180.01116.21
5.6.120.0200.00916.21
5.6.110.0230.00616.03
5.6.100.0180.01016.18
5.6.90.0190.01016.12
5.6.80.0180.00916.02
5.6.70.0160.01316.08
5.6.60.0170.01016.12
5.6.50.0180.01016.13
5.6.40.0150.01316.13
5.6.30.0170.01116.18
5.6.20.0210.00816.19
5.6.10.0190.01116.01
5.6.00.0180.01216.04

preferences:
64.56 ms | 400 KiB | 5 Q