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']] = $categoryArray[$row['category_id']]; unset($categoryArray[$row['category_id']]); } else { $categoryArray[$row['parent_id']][$row['category_id']] = $row['name']; } } echo 'first stage <br>'; print_r($categoryArray); // second stage getLine($categoryArray()); function getLine($array){ foreach($array as $row){ if(is_array($row)) { echo('<ul>'); getLine($row); echo('</ul>'); } else { echo('<li>'.$row.'</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)
8.3.70.0030.01416.63
8.3.60.0060.00918.33
8.3.50.0090.00721.27
8.3.40.0100.00718.79
8.3.30.0120.00820.39
8.3.20.0070.01020.38
8.3.10.0040.00422.09
8.3.00.0040.00422.44
8.2.180.0130.00316.75
8.2.170.0140.00722.96
8.2.160.0130.00022.16
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0080.00020.79
8.2.110.0030.00822.16
8.2.100.0060.00618.03
8.2.90.0000.00819.19
8.2.80.0040.00419.40
8.2.70.0000.01017.63
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0050.00320.04
8.2.30.0040.00419.36
8.2.20.0040.00417.80
8.2.10.0000.00717.74
8.2.00.0080.00017.82
8.1.280.0090.01225.92
8.1.270.0000.01023.99
8.1.260.0040.00426.35
8.1.250.0100.00728.09
8.1.240.0090.00023.86
8.1.230.0040.00719.08
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0050.00517.38
8.1.190.0040.00417.52
8.1.180.0000.00818.10
8.1.170.0000.00818.53
8.1.160.0060.00318.91
8.1.150.0000.00818.70
8.1.140.0040.00417.47
8.1.130.0030.00317.92
8.1.120.0040.00417.34
8.1.110.0030.00617.43
8.1.100.0000.00717.43
8.1.90.0040.00317.39
8.1.80.0040.00417.50
8.1.70.0000.00717.44
8.1.60.0060.00317.64
8.1.50.0000.00817.50
8.1.40.0070.00017.51
8.1.30.0080.00017.59
8.1.20.0000.00917.74
8.1.10.0000.00717.61
8.1.00.0040.00817.41
8.0.300.0000.00918.77
8.0.290.0050.00217.18
8.0.280.0000.00718.34
8.0.270.0030.00417.34
8.0.260.0030.00316.79
8.0.250.0070.00016.95
8.0.240.0040.00417.05
8.0.230.0000.00716.93
8.0.220.0040.00416.99
8.0.210.0000.00716.96
8.0.200.0000.00616.96
8.0.190.0040.00417.02
8.0.180.0040.00417.00
8.0.170.0050.00316.89
8.0.160.0070.00017.01
8.0.150.0030.00316.91
8.0.140.0040.00416.85
8.0.130.0060.00013.45
8.0.120.0050.00316.98
8.0.110.0070.00016.88
8.0.100.0000.00717.04
8.0.90.0040.00416.95
8.0.80.0090.00616.94
8.0.70.0050.00316.97
8.0.60.0040.00417.00
8.0.50.0000.00817.01
8.0.30.0100.00917.16
8.0.20.0080.01017.40
8.0.10.0000.00816.95
8.0.00.0130.00816.90
7.4.330.0070.00015.00
7.4.320.0030.00316.51
7.4.300.0000.00616.56
7.4.290.0030.00316.66
7.4.280.0000.00716.62
7.4.270.0000.00716.64
7.4.260.0030.00313.22
7.4.250.0000.00716.48
7.4.240.0050.00316.46
7.4.230.0030.00316.58
7.4.220.0070.01716.74
7.4.210.0100.00716.57
7.4.200.0000.00716.51
7.4.190.0040.00316.69
7.4.160.0110.00516.54
7.4.150.0120.00817.40
7.4.140.0160.01017.86
7.4.130.0090.00816.62
7.4.120.0080.01016.64
7.4.110.0150.00316.68
7.4.100.0080.00816.57
7.4.90.0130.00716.40
7.4.80.0080.00819.39
7.4.70.0030.01716.51
7.4.60.0100.01016.48
7.4.50.0000.00816.38
7.4.40.0050.00722.77
7.4.30.0100.00616.69
7.4.00.0040.01414.89
7.3.330.0030.00313.47
7.3.320.0020.00213.40
7.3.310.0070.00016.32
7.3.300.0030.00316.48
7.3.290.0000.01416.46
7.3.280.0080.00816.46
7.3.270.0070.01017.40
7.3.260.0090.01316.51
7.3.250.0120.00716.57
7.3.240.0140.00316.31
7.3.230.0080.01216.41
7.3.210.0090.00616.51
7.3.200.0060.01219.39
7.3.190.0130.00316.43
7.3.180.0060.01016.49
7.3.170.0100.00616.40
7.3.160.0030.01316.42
7.3.120.0050.01015.09
7.3.110.0070.01014.99
7.3.100.0140.00014.85
7.3.90.0040.00715.07
7.3.80.0030.01315.14
7.3.70.0090.00014.79
7.3.60.0150.00314.98
7.3.50.0040.01114.71
7.3.40.0060.00615.01
7.3.30.0080.00815.05
7.3.20.0000.01616.88
7.3.10.0030.00616.38
7.3.00.0070.00716.63
7.2.330.0030.01416.77
7.2.320.0100.00716.69
7.2.310.0000.02116.78
7.2.300.0210.00316.68
7.2.290.0090.01216.61
7.2.250.0070.01415.18
7.2.240.0070.00715.23
7.2.230.0060.00914.91
7.2.220.0130.00315.17
7.2.210.0030.01315.28
7.2.200.0070.00715.17
7.2.190.0070.01115.01
7.2.180.0060.00914.96
7.2.170.0090.00615.12
7.2.80.0030.01016.75
7.2.60.0050.00516.79
7.2.00.0070.00719.53
7.1.330.0000.01515.70
7.1.320.0090.00615.93
7.1.310.0070.00715.79
7.1.300.0030.01215.71
7.1.290.0000.01215.84
7.1.280.0030.01015.84
7.1.270.0070.00715.92
7.1.260.0070.00715.57
7.1.200.0040.00415.82
7.1.70.0000.01016.68
7.1.60.0060.00617.36
7.1.50.1220.00816.46
7.1.00.0000.07022.30
7.0.200.0060.00916.94
7.0.140.0070.07022.22
7.0.100.0070.04019.96
7.0.90.0030.05019.95
7.0.80.0000.06720.00
7.0.70.0070.03320.01
7.0.60.0000.06719.97
7.0.50.0100.06320.32
7.0.40.0130.07720.14
7.0.30.0030.04320.12
7.0.20.0000.04720.07
7.0.10.0000.05020.07
7.0.00.0070.06320.17
5.6.280.0000.07721.10
5.6.250.0070.04320.79
5.6.240.0030.04320.52
5.6.230.0030.05020.67
5.6.220.0000.04320.60
5.6.210.0030.04320.67
5.6.200.0030.04321.11
5.6.190.0000.04721.11
5.6.180.0130.05021.09
5.6.170.0130.03021.11
5.6.160.0030.05321.14
5.6.150.0070.04321.03
5.6.140.0000.04721.09
5.6.130.0070.06021.09
5.6.120.0030.04320.97
5.6.110.0130.03021.05
5.6.100.0100.03721.04
5.6.90.0070.06321.03
5.6.80.0070.03720.34
5.6.70.0070.05020.39
5.6.60.0070.07020.45
5.6.50.0000.08320.35
5.6.40.0030.06020.47
5.6.30.0100.04320.37
5.6.20.0100.07320.49
5.6.10.0070.08320.37
5.6.00.0200.06720.45
5.5.380.0070.04020.47
5.5.370.0070.04020.44
5.5.360.0030.04020.54
5.5.350.0030.04020.44
5.5.340.0100.05020.80
5.5.330.0070.04020.92
5.5.320.0030.04720.88
5.5.310.0000.07320.85
5.5.300.0030.05320.84
5.5.290.0030.04320.89
5.5.280.0030.04320.79
5.5.270.0030.04720.77
5.5.260.0030.04720.89
5.5.250.0100.03320.66
5.5.240.0070.03320.29
5.5.230.0070.03720.13
5.5.220.0070.03720.15
5.5.210.0100.05320.15
5.5.200.0100.06720.16
5.5.190.0070.07320.20
5.5.180.0030.08720.25
5.5.160.0100.04720.17
5.5.150.0030.08020.20
5.5.140.0030.08720.26
5.5.130.0070.08020.12
5.5.120.0130.07320.28
5.5.110.0030.08020.25
5.5.100.0200.06720.09
5.5.90.0100.07020.05
5.5.80.0100.07020.09
5.5.70.0000.04320.17
5.5.60.0030.06320.17
5.5.50.0230.05020.13
5.5.40.0100.07020.10
5.5.30.0070.07319.98
5.5.20.0000.08320.06
5.5.10.0130.07020.10
5.5.00.0070.08320.04
5.4.450.0070.05719.38
5.4.440.0000.06019.15
5.4.430.0000.06019.46
5.4.420.0000.04019.41
5.4.410.0030.04019.40
5.4.400.0130.02319.04
5.4.390.0070.03719.01
5.4.380.0100.02719.06
5.4.370.0000.04019.16
5.4.360.0070.07319.14
5.4.350.0100.07019.16
5.4.340.0100.08019.13
5.4.320.0030.07019.10
5.4.310.0070.07319.13
5.4.300.0070.07318.95
5.4.290.0100.05319.23
5.4.280.0170.07018.85
5.4.270.0200.06018.87
5.4.260.0030.06719.04
5.4.250.0070.07319.22
5.4.240.0100.06719.24
5.4.230.0170.06019.24
5.4.220.0130.07019.09
5.4.210.0070.07719.12
5.4.200.0030.08019.23
5.4.190.0070.07718.94
5.4.180.0070.07719.16
5.4.170.0130.07719.02
5.4.160.0100.04319.09
5.4.150.0100.05018.83
5.4.140.0070.04016.31
5.4.130.0170.06016.47
5.4.120.0130.05716.51
5.4.110.0100.05716.44
5.4.100.0130.03716.49
5.4.90.0100.06716.53
5.4.80.0070.07316.39
5.4.70.0070.05316.56
5.4.60.0000.04716.42
5.4.50.0070.08316.45
5.4.40.0030.05716.50
5.4.30.0100.07016.33
5.4.20.0030.06716.44
5.4.10.0000.04016.49
5.4.00.0130.06715.86
5.3.290.0070.07314.74
5.3.280.0030.07314.64
5.3.270.0030.05314.75
5.3.260.0030.08014.57
5.3.250.0030.08314.62
5.3.240.0070.04014.64
5.3.230.0170.06714.63
5.3.220.0030.04314.60
5.3.210.0000.04314.55
5.3.200.0170.06314.61
5.3.190.0030.08014.57
5.3.180.0000.05714.63
5.3.170.0070.06014.59
5.3.160.0130.05314.68
5.3.150.0100.07014.61
5.3.140.0170.06314.50
5.3.130.0100.07714.58
5.3.120.0030.08014.67
5.3.110.0000.04314.70
5.3.100.0000.08014.16
5.3.90.0030.06314.08
5.3.80.0100.06714.08
5.3.70.0130.06314.14
5.3.60.0100.07014.00
5.3.50.0030.07713.89
5.3.40.0070.07713.96
5.3.30.0030.07313.89
5.3.20.0030.07713.89
5.3.10.0070.07013.89
5.3.00.0070.07013.89
5.2.170.0000.06713.89
5.2.160.0070.06013.89
5.2.150.0100.06013.89
5.2.140.0070.06013.89
5.2.130.0100.05713.89
5.2.120.0030.05713.89
5.2.110.0030.06313.89
5.2.100.0030.06713.89
5.2.90.0070.06013.89
5.2.80.0070.06013.89
5.2.70.0070.04713.89
5.2.60.0100.05313.89
5.2.50.0070.06013.89
5.2.40.0030.06713.89
5.2.30.0000.06013.89
5.2.20.0100.05313.89
5.2.10.0030.05313.89
5.2.00.0100.05313.89
5.1.60.0070.05313.89
5.1.50.0000.04013.89
5.1.40.0000.05713.89
5.1.30.0000.05713.89
5.1.20.0030.03713.89
5.1.10.0100.05013.89
5.1.00.0170.03713.89
5.0.50.0030.04713.89
5.0.40.0030.04313.89
5.0.30.0070.05713.89
5.0.20.0030.04313.89
5.0.10.0070.04013.89
5.0.00.0100.05713.89
4.4.90.0030.03313.89
4.4.80.0000.03013.89
4.4.70.0000.02313.89
4.4.60.0030.03313.89
4.4.50.0030.03313.89
4.4.40.0030.05013.89
4.4.30.0000.03713.89
4.4.20.0000.03713.89
4.4.10.0030.03313.89
4.4.00.0030.05013.89
4.3.110.0000.03313.89
4.3.100.0000.03713.89
4.3.90.0000.03013.89
4.3.80.0000.05713.89
4.3.70.0030.03313.89
4.3.60.0070.03013.89
4.3.50.0000.03713.89
4.3.40.0030.04713.89
4.3.30.0000.03713.89
4.3.20.0000.04713.89
4.3.10.0030.02713.89
4.3.00.0030.03013.89

preferences:
43.58 ms | 401 KiB | 5 Q