3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = array(8,4,1,9,5,7,3,2,6,0); function merge_sort($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))); $data = new array(); for($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 $data; } var_dump(merge_sort($data));

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)
5.4.310.0080.04312.51
5.4.300.0060.03812.52
5.4.290.0040.04112.52
5.4.280.0050.04312.41
5.4.270.0180.04612.41
5.4.260.0110.03312.41
5.4.250.0040.03912.41
5.4.240.0070.04112.41
5.4.230.0050.04212.40
5.4.220.0050.03712.40
5.4.210.0080.03212.40
5.4.200.0080.03812.40
5.4.190.0030.03912.40
5.4.180.0050.03812.40
5.4.170.0090.04212.41
5.4.160.0070.04312.40
5.4.150.0070.04212.40
5.4.140.0070.04012.09
5.4.130.0070.03512.07
5.4.120.0060.04512.03
5.4.110.0060.03412.03
5.4.100.0060.03512.03
5.4.90.0050.04112.03
5.4.80.0090.03812.03
5.4.70.0040.03812.03
5.4.60.0050.03612.03
5.4.50.0040.03812.03
5.4.40.0060.03512.02
5.4.30.0070.04112.01
5.4.20.0080.03712.01
5.4.10.0090.03412.01
5.4.00.0060.03611.51
5.3.280.0050.03912.71
5.3.270.0100.04012.73
5.3.260.0050.04012.71
5.3.250.0040.03812.72
5.3.240.0050.03812.72
5.3.230.0050.03812.71
5.3.220.0060.04112.68
5.3.210.0120.03412.68
5.3.200.0060.03712.68
5.3.190.0060.03712.68
5.3.180.0060.03512.67
5.3.170.0040.03912.66
5.3.160.0040.03812.68
5.3.150.0080.04012.68
5.3.140.0060.03512.66
5.3.130.0030.04112.66
5.3.120.0090.04312.66
5.3.110.0070.04712.66
5.3.100.0060.04212.14
5.3.90.0030.03712.11
5.3.80.0080.03212.10
5.3.70.0060.03812.10
5.3.60.0090.03512.08
5.3.50.0020.03912.03
5.3.40.0070.03512.04
5.3.30.0050.03511.98
5.3.20.0030.03711.77
5.3.10.0050.03511.74
5.3.00.0070.04111.72
5.2.170.0110.0249.23
5.2.160.0080.0309.23
5.2.150.0070.0279.22
5.2.140.0070.0309.22
5.2.130.0030.0309.18
5.2.120.0080.0259.18
5.2.110.0040.0299.19
5.2.100.0040.0289.19
5.2.90.0040.0309.19
5.2.80.0060.0289.18
5.2.70.0050.0299.18
5.2.60.0050.0359.13
5.2.50.0050.0319.10
5.2.40.0060.0279.08
5.2.30.0060.0299.05
5.2.20.0030.0369.04
5.2.10.0040.0388.95
5.2.00.0070.0268.82
5.1.60.0030.0248.10
5.1.50.0030.0258.09
5.1.40.0040.0248.07
5.1.30.0000.0298.43
5.1.20.0030.0288.44
5.1.10.0070.0268.17
5.1.00.0050.0248.17
5.0.50.0020.0226.65
5.0.40.0060.0216.51
5.0.30.0020.0326.31
5.0.20.0040.0236.29
5.0.10.0040.0186.27
5.0.00.0020.0336.27
4.4.90.0040.0144.78
4.4.80.0020.0204.75
4.4.70.0030.0184.75
4.4.60.0040.0184.76
4.4.50.0040.0204.77
4.4.40.0040.0244.71
4.4.30.0040.0204.76
4.4.20.0030.0154.85
4.4.10.0040.0144.85
4.4.00.0010.0284.76
4.3.110.0050.0194.67
4.3.100.0060.0194.67
4.3.90.0040.0144.63
4.3.80.0020.0264.58
4.3.70.0020.0174.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0010.0264.53
4.3.30.0020.0203.30
4.3.20.0040.0173.29
4.3.10.0020.0163.24
4.3.00.0000.0307.12

preferences:
139.14 ms | 1394 KiB | 7 Q