3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A1 { public function rows() { $a = array(); $a[] = array('parent_id' => 10, 'category_id' => 13, 'name' => 'id13'); $a[] = array('parent_id' => 8, 'category_id' => 12, 'name' => 'id12'); $a[] = array('parent_id' => 7, 'category_id' => 11, 'name' => 'id11'); $a[] = array('parent_id' => 7, 'category_id' => 10, 'name' => 'id10'); $a[] = array('parent_id' => 0, 'category_id' => 9, 'name' => 'id9'); $a[] = array('parent_id' => 0, 'category_id' => 8, 'name' => 'id8'); $a[] = array('parent_id' => 0, 'category_id' => 7, 'name' => 'id7'); return $a; } } $query = new A1; $categoryArray = array(); foreach($query->rows() as $row) { if(isset($categoryArray[$row['category_id']])) { $categoryArray[$row['parent_id']][$row['category_id']]['name'] = $row['name']; $categoryArray[$row['parent_id']][$row['category_id']]['elements'] = $categoryArray[$row['category_id']]; unset($categoryArray[$row['category_id']]); } else { $categoryArray[$row['parent_id']][$row['category_id']]['name'] = $row['name']; } } echo "first stage \n"; print_r($categoryArray); // second stage echo "\n\n"; getCategory($categoryArray[0]); function getCategory($array){ foreach($array as $key => $row){ if(isset($row['elements'])) { echo('<li>'.$row['name'].'<ul>'); getCategory($row['elements']); echo('</ul></li>'); } else { echo('<li>'.$row['name'].'</li>'); } } }

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)
8.3.60.0060.00918.30
8.3.50.0110.00621.14
8.3.40.0090.00618.93
8.3.30.0070.00720.39
8.3.20.0040.00420.17
8.3.10.0040.00422.17
8.3.00.0050.00322.37
8.2.180.0100.00616.50
8.2.170.0100.01022.96
8.2.160.0000.01422.25
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0000.00826.16
8.2.120.0000.00821.06
8.2.110.0100.00019.30
8.2.100.0090.00317.91
8.2.90.0050.00319.30
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0040.00418.03
8.2.50.0040.00418.10
8.2.40.0090.00020.66
8.2.30.0040.00419.42
8.2.20.0050.00317.65
8.2.10.0030.00517.71
8.2.00.0080.00017.70
8.1.280.0100.00725.92
8.1.270.0040.00423.99
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0090.00021.44
8.1.230.0090.00320.31
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0040.00417.25
8.1.190.0040.00417.35
8.1.180.0090.00018.10
8.1.170.0000.00818.50
8.1.160.0040.00422.20
8.1.150.0040.00418.68
8.1.140.0000.00717.54
8.1.130.0070.00017.93
8.1.120.0050.00217.52
8.1.110.0080.00017.36
8.1.100.0070.00017.50
8.1.90.0000.00717.55
8.1.80.0070.00017.52
8.1.70.0030.00317.36
8.1.60.0060.00317.63
8.1.50.0050.00317.61
8.1.40.0060.00317.52
8.1.30.0030.00617.67
8.1.20.0080.00017.70
8.1.10.0000.00717.63
8.1.00.0020.00517.54
8.0.300.0080.00318.77
8.0.290.0050.00316.88
8.0.280.0070.00018.41
8.0.270.0000.00717.31
8.0.260.0030.00316.89
8.0.250.0050.00217.05
8.0.240.0000.00816.96
8.0.230.0040.00416.89
8.0.220.0030.00316.97
8.0.210.0040.00416.89
8.0.200.0030.00317.07
8.0.190.0030.00517.01
8.0.180.0050.00216.96
8.0.170.0080.00016.90
8.0.160.0000.00816.95
8.0.150.0040.00416.93
8.0.140.0030.00416.88
8.0.130.0000.00613.39
8.0.120.0080.00016.92
8.0.110.0050.00316.88
8.0.100.0060.00316.78
8.0.90.0040.00416.96
8.0.80.0060.00916.88
8.0.70.0040.00416.84
8.0.60.0030.00616.77
8.0.50.0070.00016.94
8.0.30.0120.00917.16
8.0.20.0110.00917.46
8.0.10.0040.00416.86
8.0.00.0050.01416.77
7.4.330.0000.00615.00
7.4.320.0000.00616.49
7.4.300.0030.00316.54
7.4.290.0020.00516.58
7.4.280.0030.00316.71
7.4.270.0000.00716.66
7.4.260.0030.00313.34
7.4.250.0060.00316.50
7.4.240.0040.00416.68
7.4.230.0040.00416.65
7.4.220.0160.00916.56
7.4.210.0090.00916.58
7.4.200.0070.00016.48
7.4.190.0000.00716.50
7.4.160.0110.00616.76
7.4.150.0120.00617.40
7.4.140.0040.01317.86
7.4.130.0100.00616.66
7.4.120.0070.01016.64
7.4.110.0060.01016.40
7.4.100.0150.00316.42
7.4.90.0110.00716.47
7.4.80.0100.00719.39
7.4.70.0070.01016.67
7.4.60.0090.00816.39
7.4.50.0030.00616.41
7.4.40.0110.00422.77
7.4.30.0090.00616.59
7.4.00.0050.01115.05
7.3.330.0060.00013.30
7.3.320.0000.00513.39
7.3.310.0070.00016.29
7.3.300.0030.00316.48
7.3.290.0070.00716.46
7.3.280.0060.01216.38
7.3.270.0140.00317.40
7.3.260.0080.00916.30
7.3.250.0120.00616.53
7.3.240.0120.00616.45
7.3.230.0060.01116.39
7.3.210.0090.00916.38
7.3.200.0180.01019.39
7.3.190.0090.01216.47
7.3.180.0100.00716.62
7.3.170.0150.00816.62
7.3.160.0050.01516.41
7.3.120.0080.00814.85
7.3.110.0060.01214.65
7.3.100.0080.00614.95
7.3.90.0030.01214.92
7.3.80.0050.00814.84
7.3.70.0030.00914.88
7.3.60.0050.00814.78
7.3.50.0080.00714.70
7.3.40.0030.01014.96
7.3.30.0070.00714.89
7.3.20.0080.00216.46
7.3.10.0070.00616.74
7.3.00.0070.01116.72
7.2.330.0090.00916.54
7.2.320.0170.00016.58
7.2.310.0070.01016.66
7.2.300.0160.00016.43
7.2.290.0100.00716.85
7.2.250.0070.01115.28
7.2.240.0050.01415.17
7.2.230.0060.00915.18
7.2.220.0090.00714.96
7.2.210.0050.00915.23
7.2.200.0080.00615.04
7.2.190.0080.00514.73
7.2.180.0020.01315.01
7.2.170.0080.00615.03
7.2.160.0100.00014.99
7.2.150.0000.01216.95
7.2.140.0070.01117.00
7.2.130.0090.00617.02
7.2.120.0080.00816.88
7.2.110.0040.01416.82
7.2.100.0110.00716.83
7.2.90.0030.00916.76
7.2.80.0040.01116.93
7.2.70.0060.00617.03
7.2.60.0000.01416.87
7.2.50.0070.00716.77
7.2.40.0120.00316.99
7.2.30.0110.00017.01
7.2.20.0080.00416.99
7.2.10.0100.00316.71
7.2.00.0100.00318.22
7.1.330.0080.00815.59
7.1.320.0090.00615.87
7.1.310.0020.00915.83
7.1.300.0030.01015.89
7.1.290.0050.00815.79
7.1.280.0060.00715.79
7.1.270.0080.00515.89
7.1.260.0080.00815.79
7.1.250.0060.00915.76
7.1.100.0030.00618.36
7.1.70.0050.00217.05
7.1.60.0080.00319.29
7.1.50.0090.01516.98
7.1.00.0000.04322.34
7.0.200.0330.00714.82
7.0.140.0130.06722.09
7.0.100.0170.08020.01
7.0.90.0100.07019.94
7.0.80.0100.03719.89
7.0.70.0100.03719.93
7.0.60.0130.04720.00
7.0.50.0070.04720.34
7.0.40.0030.04320.10
7.0.30.0030.04320.11
7.0.20.0170.05320.07
7.0.10.0130.06320.08
7.0.00.0070.03720.12
5.6.280.0030.07721.08
5.6.250.0170.07320.69
5.6.240.0100.06720.64
5.6.230.0030.05320.60
5.6.220.0130.03320.63
5.6.210.0130.04020.69
5.6.200.0030.04021.09
5.6.190.0030.04321.03
5.6.180.0070.08720.96
5.6.170.0100.06721.03
5.6.160.0100.04021.11
5.6.150.0030.04320.95
5.6.140.0030.04320.96
5.6.130.0000.04721.12
5.6.120.0100.03721.02
5.6.110.0070.04021.04
5.6.100.0130.04321.16
5.6.90.0100.04021.07
5.6.80.0070.03720.54
5.6.70.0000.04320.46
5.6.60.0070.03320.36
5.6.50.0030.04020.41
5.6.40.0070.05320.50
5.6.30.0030.04020.33
5.6.20.0070.09020.30
5.6.10.0070.07720.41
5.6.00.0170.07320.48
5.5.380.0170.04320.36
5.5.370.0070.07020.39
5.5.360.0100.03720.41
5.5.350.0100.05720.43
5.5.340.0000.05320.93
5.5.330.0030.04320.87
5.5.320.0000.07320.94
5.5.310.0070.04720.66
5.5.300.0000.04720.90
5.5.290.0070.05020.84
5.5.280.0070.04320.88
5.5.270.0030.04320.78
5.5.260.0070.05720.78
5.5.250.0070.03720.61
5.5.240.0030.04020.32
5.5.230.0070.03720.21
5.5.220.0000.04320.14
5.5.210.0100.03320.24
5.5.200.0070.03020.24
5.5.190.0070.04320.08
5.5.180.0030.04320.25
5.5.160.0030.05020.24
5.5.150.0170.07320.12
5.5.140.0170.07320.15
5.5.130.0070.04020.21
5.5.120.0030.08320.16
5.5.110.0130.04020.28
5.5.100.0130.05020.07
5.5.90.0070.07020.17
5.5.80.0130.07320.09
5.5.70.0100.07320.10
5.5.60.0000.09020.10
5.5.50.0130.07019.98
5.5.40.0130.07320.16
5.5.30.0000.05720.14
5.5.20.0100.07020.09
5.5.10.0000.06020.07
5.5.00.0030.08319.93
5.4.450.0070.03719.49
5.4.440.0070.03319.39
5.4.430.0030.04019.36
5.4.420.0030.04019.46
5.4.410.0000.04319.36
5.4.400.0070.03719.06
5.4.390.0030.03719.18
5.4.380.0030.04019.23
5.4.370.0030.04319.05
5.4.360.0000.05019.12
5.4.350.0100.03019.24
5.4.340.0000.05019.16
5.4.320.0070.07318.85
5.4.310.0100.06719.05
5.4.300.0130.07318.90
5.4.290.0000.06019.04
5.4.280.0170.07319.16
5.4.270.0030.08019.18
5.4.260.0100.07019.13
5.4.250.0100.07319.20
5.4.240.0130.04719.09
5.4.230.0130.07719.11
5.4.220.0100.07719.03
5.4.210.0130.04019.04
5.4.200.0070.05718.88
5.4.190.0070.07319.15
5.4.180.0000.05018.86
5.4.170.0100.08719.13
5.4.160.0030.07318.86
5.4.150.0100.04318.93
5.4.140.0300.05316.41
5.4.130.0170.07016.41
5.4.120.0130.03316.41
5.4.110.0030.07016.49
5.4.100.0170.06716.43
5.4.90.0170.06716.52
5.4.80.0030.04316.48
5.4.70.0130.06016.51
5.4.60.0030.07716.31
5.4.50.0100.07316.30
5.4.40.0100.07316.52
5.4.30.0070.04016.48
5.4.20.0170.06316.36
5.4.10.0170.06316.49
5.4.00.0130.04715.85
5.3.290.0170.07014.82
5.3.280.0100.07314.66
5.3.270.0070.07314.65
5.3.260.0130.07714.71
5.3.250.0030.05714.65
5.3.240.0100.07314.68
5.3.230.0070.07014.65
5.3.220.0070.05014.65
5.3.210.0070.05014.65
5.3.200.0030.06314.65
5.3.190.0030.05714.67
5.3.180.0070.07714.71
5.3.170.0030.05014.65
5.3.160.0030.06714.65
5.3.150.0130.04714.65
5.3.140.0100.07014.65
5.3.130.0070.07314.65
5.3.120.0170.05014.65
5.3.110.0170.06314.68
5.3.100.0130.06714.65
5.3.90.0030.08314.65
5.3.80.0100.07014.65
5.3.70.0170.06314.65
5.3.60.0130.06014.65
5.3.50.0070.07314.65
5.3.40.0030.04714.65
5.3.30.0030.07714.65
5.3.20.0070.07014.65
5.3.10.0070.07014.65
5.3.00.0200.05714.65
5.2.170.0130.05314.65
5.2.160.0030.06314.65
5.2.150.0070.06314.65
5.2.140.0070.03314.65
5.2.130.0070.05014.65
5.2.120.0070.06314.65
5.2.110.0030.05714.65
5.2.100.0100.05014.65
5.2.90.0100.05714.65
5.2.80.0070.06314.65
5.2.70.0100.05714.65
5.2.60.0030.06314.65
5.2.50.0130.05314.65
5.2.40.0100.05714.65
5.2.30.0070.03014.65
5.2.20.0030.04314.65
5.2.10.0070.06014.65
5.2.00.0100.02714.65
5.1.60.0030.05714.65
5.1.50.0030.05714.65
5.1.40.0030.05314.65
5.1.30.0030.05714.65
5.1.20.0100.05014.65
5.1.10.0070.04314.65
5.1.00.0070.04014.65
5.0.50.0070.04014.65
5.0.40.0100.03714.65
5.0.30.0000.06314.65
5.0.20.0030.04014.65
5.0.10.0030.03714.65
5.0.00.0030.06314.65
4.4.90.0130.02314.65
4.4.80.0070.02314.65
4.4.70.0000.04314.65
4.4.60.0070.02714.65
4.4.50.0070.02714.65
4.4.40.0000.05314.65
4.4.30.0000.02714.65
4.4.20.0000.03714.65
4.4.10.0000.04014.65
4.4.00.0030.05314.65
4.3.110.0000.04014.65
4.3.100.0000.03714.65
4.3.90.0000.04014.65
4.3.80.0000.05014.65
4.3.70.0130.02014.65
4.3.60.0030.03714.65
4.3.50.0070.03014.65
4.3.40.0030.03714.65
4.3.30.0000.03714.65
4.3.20.0030.03014.65
4.3.10.0000.03714.65
4.3.00.0000.03314.65

preferences:
53.52 ms | 401 KiB | 5 Q