3v4l.org

run code in 300+ PHP versions simultaneously
<?php $groupByCols = ['a', 'b']; $rows = [ [ 'a' => 1, 'b' => 10, 'c' => 100 ], [ 'a' => 1, 'b' => 20, 'c' => 200 ], [ 'a' => 1, 'b' => 20, 'c' => 300 ], [ 'a' => 1, 'b' => 30, 'c' => 400 ], [ 'a' => 2, 'b' => 40, 'c' => 500 ], [ 'a' => 2, 'b' => 50, 'c' => 600 ], [ 'a' => 3, 'b' => 60, 'c' => 700 ] ]; function group_by($array, $columns) { $new_arr = array(); $column = array_shift($columns); foreach ($array as $arr) { $new_arr[$arr[$column]][] = $arr; } if (count($columns)) { foreach ($new_arr as &$arr) { $arr = group_by($arr, $columns); } } return array_values($new_arr); } print_r(group_by($rows, $groupByCols));

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)
8.3.60.0110.00816.75
8.3.50.0130.00618.32
8.3.40.0030.01218.49
8.3.30.0040.01118.71
8.3.20.0080.00018.98
8.3.10.0050.00323.64
8.3.00.0080.00020.68
8.2.180.0060.00916.38
8.2.170.0070.01022.96
8.2.160.0130.00322.26
8.2.150.0080.00024.18
8.2.140.0100.00324.66
8.2.130.0040.00419.77
8.2.120.0040.00426.35
8.2.110.0030.00720.47
8.2.100.0080.00317.91
8.2.90.0080.00017.75
8.2.80.0060.00317.97
8.2.70.0080.00018.09
8.2.60.0030.00618.34
8.2.50.0070.00418.10
8.2.40.0000.00819.46
8.2.30.0000.00719.25
8.2.20.0030.00518.22
8.2.10.0000.00718.00
8.2.00.0040.00417.60
8.1.280.0150.00625.92
8.1.270.0030.00522.14
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00622.05
8.1.230.0070.00418.87
8.1.220.0030.00617.74
8.1.210.0060.00318.77
8.1.200.0030.00617.35
8.1.190.0080.00017.35
8.1.180.0000.00818.10
8.1.170.0030.00618.65
8.1.160.0040.00418.90
8.1.150.0040.00418.81
8.1.140.0050.00222.00
8.1.130.0030.00320.15
8.1.120.0060.00317.37
8.1.110.0040.00417.45
8.1.100.0000.00817.52
8.1.90.0000.00717.45
8.1.80.0050.00317.31
8.1.70.0030.00717.35
8.1.60.0050.00317.61
8.1.50.0060.00617.42
8.1.40.0000.00817.55
8.1.30.0070.00017.65
8.1.20.0030.00517.65
8.1.10.0040.00417.45
8.1.00.0040.00417.48
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.46
8.0.270.0070.00016.74
8.0.260.0000.00718.37
8.0.250.0000.00716.80
8.0.240.0040.00416.93
8.0.230.0030.00316.87
8.0.220.0030.00316.93
8.0.210.0070.00016.90
8.0.200.0000.00616.82
8.0.190.0000.00716.98
8.0.180.0000.00816.89
8.0.170.0000.00816.93
8.0.160.0070.00016.98
8.0.150.0070.00016.85
8.0.140.0040.00416.76
8.0.130.0060.00013.30
8.0.120.0040.00416.83
8.0.110.0000.00916.95
8.0.100.0040.00416.78
8.0.90.0040.00416.90
8.0.80.0070.00716.81
8.0.70.0040.00416.95
8.0.60.0040.00416.77
8.0.50.0050.00216.88
8.0.30.0110.00816.98
8.0.20.0120.00817.40
8.0.10.0070.00017.07
8.0.00.0100.01016.79
7.4.330.0000.00515.55
7.4.320.0030.00316.64
7.4.300.0000.00716.48
7.4.290.0000.00716.61
7.4.280.0000.00816.54
7.4.270.0030.00316.61
7.4.260.0030.00316.61
7.4.250.0050.00216.49
7.4.240.0040.00416.51
7.4.230.0030.00316.52
7.4.220.0050.00216.44
7.4.210.0080.01016.57
7.4.200.0000.00716.59
7.4.160.0070.01216.50
7.4.140.0110.00717.86
7.4.130.0120.00616.35
7.4.120.0090.00916.52
7.4.110.0100.00916.61
7.4.100.0100.01316.34
7.4.90.0100.01016.56
7.4.80.0100.01319.39
7.4.70.0070.01516.45
7.4.60.0090.00916.44
7.4.50.0090.00616.48
7.4.40.0080.00716.53
7.4.00.0070.01014.88
7.3.330.0050.00013.22
7.3.320.0050.00013.36
7.3.310.0050.00316.39
7.3.300.0030.00316.33
7.3.290.0000.00716.32
7.3.280.0050.01016.43
7.3.260.0100.00916.39
7.3.240.0090.00916.35
7.3.230.0070.01016.65
7.3.210.0120.00616.32
7.3.200.0130.00716.44
7.3.190.0040.01416.43
7.3.180.0120.00316.38
7.3.170.0090.01216.68
7.3.160.0140.00616.53
7.2.330.0120.00916.95
7.2.320.0170.00016.62
7.2.310.0070.01016.71
7.2.300.0090.00616.66
7.2.290.0060.00916.86
7.2.110.0340.01014.69
7.2.100.0500.00314.64
7.2.90.0470.00315.05
7.2.80.0450.00314.86
7.2.70.0460.00915.20
7.2.60.0520.00714.85
7.2.50.0470.00415.11
7.2.40.0500.00914.92
7.2.30.0510.00714.93
7.2.20.0580.00614.79
7.2.10.0390.00714.39
7.2.00.0550.00015.23
7.1.230.0590.01314.03
7.1.220.0400.01013.88
7.1.210.0470.00713.98
7.1.200.0390.01013.76
7.1.190.0470.00713.79
7.1.180.0440.01113.82
7.1.170.0500.00613.88
7.1.160.0580.00013.65
7.1.150.0450.01013.99
7.1.140.0380.01213.80
7.1.130.0420.00613.58
7.1.120.0420.01613.55
7.1.110.0610.01013.52
7.1.100.0680.01213.82
7.1.90.0640.01313.71
7.1.80.0430.01114.07
7.1.70.0450.00714.11
7.1.60.0620.01031.98
7.1.50.0770.00731.85
7.1.40.0810.00631.72
7.1.30.0860.01331.77
7.1.20.0750.00731.83
7.1.10.0440.00413.73
7.1.00.0860.01013.87
5.6.380.0150.00814.51

preferences:
36.16 ms | 400 KiB | 5 Q