3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = array(8,4,1,9,5,7,3,2,6,0); function merge_sort($list){ //var_dump($list); if(count($list) <= 1) { return $list; } $middle = count($list)/2; $left = merge_sort(array_slice($list, 0, $middle)); $right = merge_sort(array_slice($list, $middle+1, count($list))); $data = array(); for($x = 0;$x < count($list); $x++){ if($x < count($left)){ $data[$x] = $left[$x]; } if($x >= count($left) && $x < count($right)){ $data[$x] = $right[$x]; } } return $data; } var_dump(merge_sort($list)); //var_dump(array_slice($data, 0, 4));

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)
8.3.60.0110.00416.50
8.3.50.0250.00722.05
8.3.40.0070.00718.72
8.3.30.0160.00319.09
8.3.20.0000.00820.33
8.3.10.0050.00221.88
8.3.00.0000.00818.16
8.2.180.0090.00618.16
8.2.170.0110.00322.96
8.2.160.0130.00020.47
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0030.00621.09
8.2.110.0000.01121.08
8.2.100.0000.01218.22
8.2.90.0000.00819.17
8.2.80.0030.00517.97
8.2.70.0090.00017.75
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0040.00418.22
8.2.30.0110.00018.24
8.2.20.0080.00017.81
8.2.10.0000.00818.00
8.2.00.0040.00419.57
8.1.280.0110.00425.92
8.1.270.0040.00423.62
8.1.260.0070.00026.35
8.1.250.0060.00328.09
8.1.240.0060.00321.29
8.1.230.0060.00619.42
8.1.220.0090.00017.74
8.1.210.0090.00018.77
8.1.200.0060.00317.35
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0090.00018.65
8.1.160.0040.00421.94
8.1.150.0000.00718.80
8.1.140.0000.00817.39
8.1.130.0070.00017.46
8.1.120.0040.00417.48
8.1.110.0040.00417.46
8.1.100.0050.00317.36
8.1.90.0030.00317.45
8.1.80.0020.00517.45
8.1.70.0000.00717.43
8.1.60.0000.00817.52
8.1.50.0000.00817.50
8.1.40.0030.00617.58
8.1.30.0040.00417.67
8.1.20.0060.00317.57
8.1.10.0060.00317.60
8.1.00.0040.00417.41
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.36
8.0.270.0040.00417.29
8.0.260.0030.00316.90
8.0.250.0030.00316.92
8.0.240.0040.00417.00
8.0.230.0000.00716.95
8.0.220.0000.00716.79
8.0.210.0030.00316.77
8.0.200.0030.00316.96
8.0.190.0050.00316.95
8.0.180.0040.00416.87
8.0.170.0000.00816.88
8.0.160.0040.00416.84
8.0.150.0000.00716.75
8.0.140.0000.00716.93
8.0.130.0030.00313.39
8.0.120.0000.00816.91
8.0.110.0000.00816.83
8.0.100.0040.00416.96
8.0.90.0000.00816.72
8.0.80.0040.01216.79
8.0.70.0030.00316.93
8.0.60.0030.00417.01
8.0.50.0000.00716.75
8.0.30.0160.00316.99
8.0.20.0120.00817.40
8.0.10.0030.00516.83
8.0.00.0070.01016.78
7.4.330.0000.00615.13
7.4.320.0060.00016.46
7.4.300.0060.00016.61
7.4.290.0050.00216.55
7.4.280.0070.00016.61
7.4.270.0000.00716.50
7.4.260.0100.00016.54
7.4.250.0080.00016.61
7.4.240.0020.00516.52
7.4.230.0070.00016.59
7.4.220.0100.00716.65
7.4.210.0080.01116.53
7.4.200.0090.00016.34
7.4.160.0130.00316.50
7.4.150.0120.00617.40
7.4.140.0100.01017.86
7.4.130.0040.01216.53
7.4.120.0030.01716.53
7.4.110.0130.00416.58
7.4.100.0110.00716.63
7.4.90.0130.00716.37
7.4.80.0120.00919.39
7.4.70.0080.00916.47
7.4.60.0090.01016.46
7.4.50.0020.00216.53
7.4.40.0040.01216.55
7.4.30.0120.00316.58
7.4.00.0100.00614.65
7.3.330.0050.00013.33
7.3.320.0000.00513.38
7.3.310.0040.00416.48
7.3.300.0000.00716.21
7.3.290.0200.00016.45
7.3.280.0070.01216.42
7.3.270.0080.00817.40
7.3.260.0140.01116.39
7.3.250.0100.00716.43
7.3.240.0060.01216.59
7.3.230.0130.00316.64
7.3.210.0130.00316.36
7.3.200.0070.01019.39
7.3.190.0130.00616.39
7.3.180.0090.00916.33
7.3.170.0100.00716.43
7.3.160.0090.00616.35
7.3.120.0040.01214.84
7.3.10.0060.00616.71
7.3.00.0080.00516.49
7.2.330.0130.00416.59
7.2.320.0110.00716.54
7.2.310.0150.00316.81
7.2.300.0090.01216.76
7.2.290.0130.00716.84
7.2.130.0100.00716.84
7.2.120.0060.01016.79
7.2.110.0100.00617.00
7.2.100.0030.00616.73
7.2.90.0080.00516.94
7.2.80.0080.00816.77
7.2.70.0040.01216.82
7.2.60.0110.00417.21
7.2.50.0000.01216.97
7.2.40.0150.00017.03
7.2.30.0140.00017.04
7.2.20.0080.00817.14
7.2.10.0110.00317.07
7.2.00.0030.00917.93
7.1.250.0040.00715.89
7.1.100.0040.00717.96
7.1.70.0040.00417.22
7.1.60.0100.01619.70
7.1.50.0070.01416.98
7.1.00.0030.07722.31
7.0.200.0000.00816.76
7.0.140.0100.06722.18
7.0.60.0070.07319.95
7.0.50.0030.08317.89
7.0.40.0230.06720.18
7.0.30.0400.06720.31
7.0.20.0270.05020.09
7.0.10.0270.08320.26
7.0.00.0100.03720.20
5.6.280.0000.07720.86
5.6.210.0030.06320.45
5.6.200.0100.06718.29
5.6.190.0030.04720.47
5.6.180.0200.07020.39
5.6.170.0200.04020.53
5.6.160.0130.07320.51
5.6.150.0030.04018.20
5.6.140.0070.03718.18
5.6.130.0100.08318.21
5.6.120.0000.04721.02
5.6.110.0070.05321.02
5.6.100.0070.06721.11
5.6.90.0200.07721.13
5.6.80.0200.07320.29
5.6.70.0300.06320.40
5.5.350.0230.08320.43
5.5.340.0000.08718.08
5.5.330.0130.05720.35
5.5.320.0030.05320.32
5.5.310.0370.05720.51
5.5.300.0030.04718.08
5.5.290.0170.05717.95
5.5.280.0100.06720.90
5.5.270.0100.06020.67
5.5.260.0070.07320.87
5.5.250.0200.06720.54
5.5.240.0070.08720.26
5.4.450.0600.05719.59
5.4.440.0770.05019.19
5.4.430.0900.05019.54
5.4.420.0370.05719.64
5.4.410.0130.05018.92
5.4.400.0400.04718.76
5.4.390.0570.03718.60
5.4.380.0230.05318.72
5.4.370.0030.04018.77
5.4.360.0030.05318.59
5.4.350.0070.03912.02
5.4.340.0080.03712.02
5.4.320.0090.03712.50
5.4.310.0050.04212.50
5.4.300.0100.03612.50
5.4.290.0050.03912.50
5.4.280.0050.03512.40
5.4.270.0030.03812.39
5.4.260.0090.03412.40
5.4.250.0040.03912.39
5.4.240.0050.04912.39
5.4.230.0080.04212.39
5.4.220.0070.03412.39
5.4.210.0060.03512.39
5.4.200.0050.03812.39
5.4.190.0050.03712.38
5.4.180.0070.03512.39
5.4.170.0070.03412.39
5.4.160.0050.03912.39
5.4.150.0060.04312.39
5.4.140.0050.04512.07
5.4.130.0070.04912.06
5.4.120.0110.03412.02
5.4.110.0040.04112.01
5.4.100.0090.03412.02
5.4.90.0090.04212.01
5.4.80.0080.04512.01
5.4.70.0080.04612.01
5.4.60.0070.04712.01
5.4.50.0140.04112.01
5.4.40.0070.04912.00
5.4.30.0100.04712.00
5.4.20.0080.04611.99
5.4.10.0040.04912.00
5.4.00.0090.04611.48
5.3.290.0060.03912.80
5.3.280.0060.04212.71
5.3.270.0050.04012.72
5.3.260.0040.04112.72
5.3.250.0040.03912.72
5.3.240.0060.03712.72
5.3.230.0070.03912.71
5.3.220.0070.04012.68
5.3.210.0130.05312.68
5.3.200.0110.05212.68
5.3.190.0060.05412.68
5.3.180.0120.04712.68
5.3.170.0060.05112.67
5.3.160.0080.05312.68
5.3.150.0090.05412.68
5.3.140.0130.04512.66
5.3.130.0110.04912.65
5.3.120.0070.05412.66
5.3.110.0100.04712.66
5.3.100.0050.04012.12
5.3.90.0060.04012.10
5.3.80.0070.04012.09
5.3.70.0110.04812.09
5.3.60.0060.04312.08
5.3.50.0050.04112.03
5.3.40.0100.04512.03
5.3.30.0090.04511.98
5.3.20.0050.04711.77
5.3.10.0100.03811.73
5.3.00.0100.04111.72
5.2.170.0050.0369.22
5.2.160.0110.0369.23
5.2.150.0050.0389.23
5.2.140.0040.0379.22
5.2.130.0070.0389.19
5.2.120.0060.0379.18
5.2.110.0050.0359.20
5.2.100.0060.0379.18
5.2.90.0040.0389.19
5.2.80.0040.0399.19
5.2.70.0040.0379.18
5.2.60.0050.0389.13
5.2.50.0090.0379.11
5.2.40.0120.0269.08
5.2.30.0070.0339.06
5.2.20.0070.0339.05
5.2.10.0050.0298.96
5.2.00.0060.0318.82
5.1.60.0070.0248.10
5.1.50.0070.0278.10
5.1.40.0040.0278.07
5.1.30.0030.0288.43
5.1.20.0040.0278.45
5.1.10.0040.0258.18
5.1.00.0060.0288.18
5.0.50.0030.0226.65
5.0.40.0100.0186.52
5.0.30.0040.0356.33
5.0.20.0080.0226.30
5.0.10.0040.0276.27
5.0.00.0050.0376.27
4.4.90.0050.0204.78
4.4.80.0020.0224.76
4.4.70.0030.0214.75
4.4.60.0050.0194.76
4.4.50.0040.0184.77
4.4.40.0040.0264.71
4.4.30.0020.0224.76
4.4.20.0030.0194.84
4.4.10.0030.0164.85
4.4.00.0020.0264.76
4.3.110.0030.0154.66
4.3.100.0030.0154.66
4.3.90.0040.0134.63
4.3.80.0020.0254.58
4.3.70.0010.0164.63
4.3.60.0010.0164.62
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0020.0163.32
4.3.20.0020.0163.31
4.3.10.0020.0163.27
4.3.00.0000.0237.56

preferences:
45.51 ms | 401 KiB | 5 Q