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']] = $row['name']; } } print_r($categoryArray);

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)
8.3.70.0090.00916.88
8.3.60.0110.00418.31
8.3.50.0140.01621.02
8.3.40.0070.01118.70
8.3.30.0110.00320.00
8.3.20.0040.00420.15
8.3.10.0140.00422.10
8.3.00.0060.00322.33
8.2.180.0160.00616.75
8.2.170.0100.00622.96
8.2.160.0070.00720.53
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0050.00326.16
8.2.120.0000.00820.73
8.2.110.0060.00322.20
8.2.100.0090.00317.67
8.2.90.0030.00817.75
8.2.80.0090.00018.90
8.2.70.0000.00817.75
8.2.60.0030.00517.63
8.2.50.0000.00817.75
8.2.40.0040.00417.75
8.2.30.0030.00519.50
8.2.20.0000.00817.62
8.2.10.0040.00417.81
8.2.00.0040.00417.77
8.1.280.0060.00925.92
8.1.270.0070.00323.99
8.1.260.0040.01126.35
8.1.250.0080.00028.09
8.1.240.0060.00318.86
8.1.230.0060.00617.89
8.1.220.0040.00417.77
8.1.210.0040.00418.77
8.1.200.0000.00817.38
8.1.190.0000.00917.35
8.1.180.0050.00318.10
8.1.170.0030.00617.62
8.1.160.0060.00318.95
8.1.150.0050.00318.66
8.1.140.0060.00317.52
8.1.130.0000.00717.82
8.1.120.0000.00717.43
8.1.110.0070.00017.52
8.1.100.0000.00817.46
8.1.90.0070.00017.37
8.1.80.0000.00717.38
8.1.70.0070.00017.43
8.1.60.0030.00617.62
8.1.50.0030.00517.60
8.1.40.0030.00617.51
8.1.30.0000.00717.57
8.1.20.0040.00417.65
8.1.10.0040.00417.49
8.1.00.0060.00617.48
8.0.300.0060.00319.02
8.0.290.0030.00616.60
8.0.280.0000.00618.34
8.0.270.0000.00717.15
8.0.260.0030.00316.71
8.0.250.0030.00317.04
8.0.240.0050.00516.85
8.0.230.0030.00316.96
8.0.220.0040.00416.81
8.0.210.0000.00716.82
8.0.200.0040.00417.02
8.0.190.0000.00816.86
8.0.180.0040.00416.90
8.0.170.0040.00416.83
8.0.160.0030.00316.79
8.0.150.0070.00016.85
8.0.140.0000.00716.91
8.0.130.0030.00313.43
8.0.120.0040.00416.80
8.0.110.0040.00416.95
8.0.100.0040.00417.03
8.0.90.0030.00316.80
8.0.80.0070.01116.82
8.0.70.0000.00716.86
8.0.60.0050.00316.80
8.0.50.0040.00416.98
8.0.30.0130.00616.92
8.0.20.0100.01017.40
8.0.10.0000.00817.08
8.0.00.0120.00916.74
7.4.330.0000.00715.00
7.4.320.0000.00616.61
7.4.300.0030.00316.61
7.4.290.0070.00016.48
7.4.280.0000.00716.47
7.4.270.0070.00016.44
7.4.260.0030.00313.20
7.4.250.0000.00716.50
7.4.240.0000.00716.59
7.4.230.0070.00016.69
7.4.220.0060.01316.56
7.4.210.0100.00616.54
7.4.200.0030.00316.61
7.4.190.0030.00316.70
7.4.160.0130.00316.46
7.4.150.0130.00417.40
7.4.140.0100.00917.86
7.4.130.0040.01316.48
7.4.120.0120.00816.58
7.4.110.0060.01216.49
7.4.100.0100.00716.36
7.4.90.0040.01216.55
7.4.80.0080.00919.39
7.4.70.0100.00716.37
7.4.60.0060.01316.54
7.4.50.0040.00416.45
7.4.40.0060.01022.77
7.4.30.0060.01016.41
7.4.10.0070.01114.87
7.4.00.0100.00614.92
7.3.330.0000.00513.21
7.3.320.0060.00013.41
7.3.310.0000.00716.31
7.3.300.0070.00016.39
7.3.290.0070.00716.52
7.3.280.0100.00716.36
7.3.270.0170.00017.40
7.3.260.0080.00816.39
7.3.250.0120.00616.57
7.3.240.0120.00616.73
7.3.230.0130.00316.72
7.3.210.0080.00816.34
7.3.200.0000.01919.39
7.3.190.0130.00316.60
7.3.180.0130.00316.33
7.3.170.0030.01316.67
7.3.160.0060.01016.50
7.3.130.0070.01014.88
7.3.120.0050.01014.72
7.3.110.0060.01314.98
7.3.100.0090.00614.90
7.3.90.0060.00914.95
7.3.80.0000.00915.21
7.3.70.0120.00314.76
7.3.60.0060.00614.83
7.3.50.0120.00614.64
7.3.40.0060.01214.85
7.3.30.0030.00614.96
7.3.20.0000.01316.52
7.3.10.0070.01016.50
7.3.00.0000.01316.52
7.2.330.0060.01016.51
7.2.320.0180.00016.41
7.2.310.0100.01016.63
7.2.300.0110.01116.51
7.2.290.0000.02116.47
7.2.260.0060.01214.94
7.2.250.0040.01414.81
7.2.240.0040.01115.33
7.2.230.0040.01215.28
7.2.220.0060.00315.17
7.2.210.0030.01014.72
7.2.200.0120.00315.27
7.2.190.0100.00615.06
7.2.180.0000.01514.88
7.2.170.0060.00715.16
7.2.160.0000.01315.29
7.2.150.0070.00716.92
7.2.140.0060.00916.99
7.2.130.0000.01716.83
7.2.120.0030.01417.07
7.2.110.0030.00617.11
7.2.100.0030.01317.04
7.2.90.0060.01017.07
7.2.80.0000.01117.04
7.2.70.0030.01016.73
7.2.60.0030.01017.06
7.2.50.0130.00017.11
7.2.40.0060.01017.13
7.2.30.0060.01017.15
7.2.20.0000.01017.08
7.2.10.0060.00616.93
7.2.00.0060.00818.35
7.1.330.0040.00815.82
7.1.320.0080.00415.80
7.1.310.0080.00415.85
7.1.300.0000.01415.67
7.1.290.0030.01015.90
7.1.280.0040.01115.87
7.1.270.0070.00715.57
7.1.260.0030.01315.91
7.1.250.0100.00315.93
7.1.240.0070.00716.01
7.1.230.0030.01016.02
7.1.220.0090.00315.90
7.1.210.0030.00715.95
7.1.200.0030.00615.93
7.1.190.0040.00416.02
7.1.180.0030.00515.97
7.1.170.0030.01015.90
7.1.160.0030.00915.88
7.1.150.0060.00915.80
7.1.140.0090.00615.86
7.1.130.0060.00615.97
7.1.120.0100.00315.83
7.1.110.0070.00315.94
7.1.100.0200.00417.00
7.1.90.0040.00815.59
7.1.80.0000.01215.75
7.1.70.0070.00416.51
7.1.60.0060.00716.35
7.1.50.0070.00816.50
7.1.40.0080.00515.58
7.1.30.0000.01315.98
7.1.20.0030.00915.73
7.1.10.0030.00615.94
7.1.00.0070.02319.00
7.0.330.0060.00615.35
7.0.320.0030.00915.28
7.0.310.0080.00815.15
7.0.300.0030.01315.47
7.0.290.0080.00415.26
7.0.280.0110.00415.21
7.0.270.0030.00615.49
7.0.260.0120.00315.47
7.0.250.0060.00315.49
7.0.240.0080.00315.32
7.0.230.0060.00915.49
7.0.220.0060.01015.63
7.0.210.0040.01215.52
7.0.200.0090.00516.09
7.0.190.0070.00415.59
7.0.180.0060.00615.25
7.0.170.0040.01115.47
7.0.160.0060.00915.38
7.0.150.0040.01115.55
7.0.140.0050.04018.86
7.0.130.0030.01015.62
7.0.120.0110.00415.50
7.0.110.0140.00015.55
7.0.100.0080.04017.63
7.0.90.0250.04517.71
7.0.80.0050.04717.70
7.0.70.0170.03817.63
7.0.60.0100.03417.54
7.0.50.0080.03618.02
7.0.40.0080.04316.80
7.0.30.0050.04516.74
7.0.20.0100.03216.85
7.0.10.0070.04016.64
7.0.00.0050.02916.67
5.6.400.0070.00714.34
5.6.390.0100.00314.28
5.6.380.0050.00514.50
5.6.370.0120.00414.68
5.6.360.0090.00614.52
5.6.350.0030.00914.27
5.6.340.0090.00314.43
5.6.330.0070.00614.38
5.6.320.0030.00714.73
5.6.310.0030.00614.40
5.6.300.0040.01114.63
5.6.290.0040.01114.33
5.6.280.0030.01014.73
5.6.270.0140.00314.26
5.6.260.0000.00914.40
5.6.250.0080.02217.57
5.6.240.0080.03517.51
5.6.230.0140.04217.46
5.6.220.0060.03317.41
5.6.210.0080.03717.54
5.6.200.0030.05417.75
5.6.190.0080.04217.79
5.6.180.0100.04217.88
5.6.170.0070.03217.77
5.6.160.0080.04317.77
5.6.150.0130.03817.65
5.6.140.0140.04217.81
5.6.130.0050.04017.84
5.6.120.0040.04417.84
5.6.110.0050.04017.69
5.6.100.0080.04317.70
5.6.90.0060.04017.74
5.6.80.0100.04117.27
5.6.70.0070.02317.47
5.6.60.0070.03717.42
5.6.50.0050.02817.33
5.6.40.0070.03617.30
5.6.30.0050.05117.43
5.6.20.0120.02717.39
5.6.10.0080.02517.32
5.6.00.0070.04417.25
5.5.380.0030.04217.32
5.5.370.0100.05017.54
5.5.360.0050.02617.52
5.5.350.0140.03817.32
5.5.340.0110.02817.64
5.5.330.0100.04617.56
5.5.320.0100.03317.54
5.5.310.0120.03217.58
5.5.300.0140.04217.65
5.5.290.0070.05017.40
5.5.280.0050.03317.65
5.5.270.0120.04317.50
5.5.260.0050.04617.63
5.5.250.0100.03617.53
5.5.240.0070.04217.25
5.5.230.0030.04517.35
5.5.220.0130.03317.22
5.5.210.0080.02917.38
5.5.200.0070.03417.32
5.5.190.0100.03717.37
5.5.180.0020.04517.24
5.5.170.0030.01214.41
5.5.160.0120.03017.25
5.5.150.0030.04617.33
5.5.140.0060.04317.32
5.5.130.0110.03717.38
5.5.120.0070.02717.19
5.5.110.0080.04217.29
5.5.100.0020.04517.05
5.5.90.0070.04217.31
5.5.80.0040.04517.31
5.5.70.0110.03717.24
5.5.60.0050.04517.12
5.5.50.0090.04017.14
5.5.40.0140.03717.28
5.5.30.0130.03517.21
5.5.20.0080.03117.32
5.5.10.0030.04317.18
5.5.00.0060.03617.13
5.4.450.0090.04115.19
5.4.440.0030.04115.28
5.4.430.0110.04015.54
5.4.420.0000.04815.16
5.4.410.0070.03815.36
5.4.400.0030.02915.10
5.4.390.0050.04215.21
5.4.380.0100.02715.01
5.4.370.0000.02915.16
5.4.360.0060.04314.97
5.4.350.0080.03615.21
5.4.340.0030.02515.30
5.4.330.0000.00911.09
5.4.320.0070.04115.19
5.4.310.0000.02914.99
5.4.300.0070.03914.97
5.4.290.0120.03215.10
5.4.280.0080.03515.07
5.4.270.0060.04114.91
5.4.260.0090.03015.17
5.4.250.0050.03015.20
5.4.240.0050.04214.85
5.4.230.0030.04015.07
5.4.220.0030.04815.32
5.4.210.0080.03814.96
5.4.200.0110.03714.95
5.4.190.0050.03915.17
5.4.180.0150.03014.86
5.4.170.0070.03015.09
5.4.160.0110.03814.98
5.4.150.0160.03315.02
5.4.140.0060.04213.59
5.4.130.0030.04013.70
5.4.120.0050.04013.74
5.4.110.0080.04013.75
5.4.100.0050.04013.78
5.4.90.0030.04113.94
5.4.80.0110.03313.93
5.4.70.0050.03613.80
5.4.60.0080.03113.78
5.4.50.0050.03513.79
5.4.40.0100.03913.78
5.4.30.0030.03813.79
5.4.20.0030.03513.86
5.4.10.0070.03313.74
5.4.00.0030.03213.58
5.3.290.0030.03112.53
5.3.280.0030.04012.58
5.3.270.0080.03612.59
5.3.260.0060.03812.54
5.3.250.0090.03312.66
5.3.240.0120.03512.50
5.3.230.0080.02612.64
5.3.220.0070.04012.56
5.3.210.0080.04212.58
5.3.200.0130.03212.57
5.3.190.0100.03212.63
5.3.180.0050.02512.66
5.3.170.0060.03112.71
5.3.160.0050.04412.70
5.3.150.0060.04012.56
5.3.140.0010.04512.68
5.3.130.0090.03612.57
5.3.120.0060.03912.64
5.3.110.0020.04512.59
5.3.100.0120.03512.25
5.3.90.0030.04312.40
5.3.80.0060.03812.29
5.3.70.0050.04012.32
5.3.60.0090.03812.39
5.3.50.0030.03912.25
5.3.40.0050.04012.27
5.3.30.0050.03312.27
5.3.20.0030.02612.14
5.3.10.0050.04312.00
5.3.00.0040.03512.02
5.2.170.0100.06011.25
5.2.160.0030.06011.28
5.2.150.0030.06011.25
5.2.140.0030.05011.23
5.2.130.0030.06011.22
5.2.120.0030.05011.09
5.2.110.0070.02711.13
5.2.100.0200.03711.13
5.2.90.0100.05711.23
5.2.80.0070.03011.02
5.2.70.0030.06711.02
5.2.60.0000.03711.09
5.2.50.0070.05311.09
5.2.40.0070.06311.11
5.2.30.0030.06711.10
5.2.20.0000.06711.07
5.2.10.0070.06311.00
5.2.00.0170.05310.86
5.1.60.0070.04710.03
5.1.50.0030.05710.10
5.1.40.0070.05010.05
5.1.30.0030.05710.45
5.1.20.0070.05010.38
5.1.10.0030.05310.14
5.1.00.0070.0539.91
5.0.50.0070.0478.64
5.0.40.0070.0408.43
5.0.30.0130.0538.24
5.0.20.0000.0478.33
5.0.10.0030.0478.17
5.0.00.0030.0538.28
4.4.90.0000.0378.17
4.4.80.0030.0338.17
4.4.70.0030.0378.17
4.4.60.0070.0338.17
4.4.50.0070.0278.17
4.4.40.0000.0508.17
4.4.30.0000.0408.17
4.4.20.0000.0378.17
4.4.10.0030.0308.17
4.4.00.0000.0538.17
4.3.110.0070.0338.17
4.3.100.0000.0308.17
4.3.90.0070.0338.17
4.3.80.0070.0378.17
4.3.70.0000.0178.17
4.3.60.0000.0208.17
4.3.50.0100.0278.17
4.3.40.0030.0408.17
4.3.30.0030.0278.17
4.3.20.0030.0338.17
4.3.10.0070.0308.17
4.3.00.0000.0338.17

preferences:
36.74 ms | 401 KiB | 5 Q