3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mergeSort($array) { echo "array = " . json_encode($array) . "\n"; $count = count($array); if ($count == 1) { return $array; } $middle = $count / 2; // round/floor/ceil is unnecessary return merge( mergeSort(array_slice($array, 0, $middle)), mergeSort(array_slice($array, $middle)) ); } function merge($half1, $half2) { do { $temp[] = $half1[0] < $half2[0] ? array_shift($half1) : array_shift($half2); } while(isset($half1[0], $half2[0])); return array_merge($temp, $half1, $half2); } $input = [4, 2, 7, 5, 3]; $input = mergeSort($input); var_export($input);

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)
8.5.00.0100.01120.38
8.4.150.0010.00114.05
8.4.140.0050.00517.63
8.4.130.0110.01018.09
8.4.120.0090.01023.93
8.4.110.0120.00822.33
8.4.100.0100.01117.73
8.4.90.0110.01020.76
8.4.80.0150.00418.06
8.4.70.0060.00217.87
8.4.60.0120.00919.67
8.4.50.0050.00518.92
8.4.40.0130.00717.89
8.4.30.0100.01318.79
8.4.20.0100.01020.35
8.4.10.0060.00317.71
8.3.280.0130.01118.53
8.3.270.0120.00716.74
8.3.260.0100.00816.82
8.3.250.0090.01018.88
8.3.240.0090.01016.75
8.3.230.0110.00716.96
8.3.220.0030.00518.89
8.3.210.0120.00316.73
8.3.200.0110.00916.98
8.3.190.0110.00717.16
8.3.180.0050.00318.87
8.3.170.0040.01519.07
8.3.160.0140.00417.10
8.3.150.0030.01516.70
8.3.140.0060.00317.25
8.3.130.0090.00018.62
8.3.120.0090.00020.72
8.3.110.0080.00020.94
8.3.100.0080.00016.78
8.3.90.0050.00326.77
8.3.80.0060.00319.36
8.3.70.0040.01518.48
8.3.60.0210.00018.43
8.3.50.0120.00524.62
8.3.40.0110.00719.00
8.3.30.0070.00719.47
8.3.20.0030.00621.90
8.3.10.0000.00820.20
8.3.00.0040.00421.77
8.2.290.0140.00618.86
8.2.280.0150.00416.77
8.2.270.0100.01016.95
8.2.260.0060.00316.71
8.2.250.0040.00416.68
8.2.240.0080.00817.17
8.2.230.0000.00822.58
8.2.220.0000.00824.06
8.2.210.0040.00426.77
8.2.200.0040.00418.88
8.2.190.0150.00016.58
8.2.180.0110.00325.92
8.2.170.0100.00722.96
8.2.160.0130.00022.26
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00419.61
8.2.110.0090.00021.04
8.2.100.0120.00017.97
8.2.90.0060.00317.88
8.2.80.0000.00818.73
8.2.70.0080.00017.75
8.2.60.0040.00417.63
8.2.50.0000.00917.55
8.2.40.0000.00819.78
8.2.30.0060.00318.16
8.2.20.0000.00718.12
8.2.10.0040.00419.29
8.2.00.0080.00019.38
8.1.330.0130.00616.54
8.1.320.0120.00916.41
8.1.310.0110.00716.43
8.1.300.0060.00318.56
8.1.290.0050.00530.84
8.1.280.0140.00725.92
8.1.270.0050.00322.52
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00321.38
8.1.230.0030.00719.10
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0080.00017.23
8.1.190.0030.00616.99
8.1.180.0030.00618.10
8.1.170.0040.00417.62
8.1.160.0040.00418.96
8.1.150.0040.00418.92
8.1.140.0070.00018.83
8.1.130.0070.00017.36
8.1.120.0040.00417.52
8.1.110.0030.00517.37
8.1.100.0000.00817.52
8.1.90.0000.00717.47
8.1.80.0030.00517.53
8.1.70.0000.00717.42
8.1.60.0050.00317.61
8.1.50.0060.00317.45
8.1.40.0000.00817.52
8.1.30.0040.00417.72
8.1.20.0030.00617.73
8.1.10.0000.00817.63
8.1.00.0080.00417.55
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.44
8.0.270.0030.00318.10
8.0.260.0000.00716.72
8.0.250.0030.00316.87
8.0.240.0030.00316.89
8.0.230.0030.00317.04
8.0.220.0060.00316.79
8.0.210.0000.00716.93
8.0.200.0000.00816.87
8.0.190.0050.00216.88
8.0.180.0040.00416.81
8.0.170.0040.00416.81
8.0.160.0080.00016.91
8.0.150.0000.00716.82
8.0.140.0070.00016.86
8.0.130.0000.00513.30
8.0.120.0040.00416.91
8.0.110.0030.00316.96
8.0.100.0030.00316.99
8.0.90.0030.00616.94
8.0.80.0080.00616.91
8.0.70.0050.00316.94
8.0.60.0050.00316.94
8.0.50.0040.00416.96
8.0.30.0100.00717.30
8.0.20.0130.00617.15
8.0.10.0050.00216.89
8.0.00.0120.00916.70
7.4.330.0000.00415.55
7.4.320.0030.00316.52
7.4.300.0060.00016.53
7.4.290.0040.00416.52
7.4.280.0060.00616.46
7.4.270.0000.00716.68
7.4.260.0050.00013.30
7.4.250.0030.00316.49
7.4.240.0060.00216.52
7.4.230.0040.00416.37
7.4.220.0040.00416.68
7.4.210.0050.01116.61
7.4.200.0030.00316.71
7.4.130.0070.01016.54
7.4.120.0130.00816.46
7.4.110.0070.01116.45
7.4.100.0070.01616.54
7.4.90.0120.00616.59
7.4.80.0060.01119.39
7.4.70.0100.00716.62
7.4.60.0100.01016.52
7.4.50.0060.01216.53
7.4.40.0040.01516.55
7.4.30.0120.00616.57
7.4.20.0070.01116.47
7.4.10.0080.01216.56
7.4.00.0080.01816.50
7.3.330.0000.00716.31
7.3.320.0040.00413.39
7.3.310.0030.00316.40
7.3.300.0060.00016.29
7.3.290.0040.01016.39
7.3.260.0080.01316.36
7.3.240.0070.00916.43
7.3.230.0090.00916.54
7.3.210.0060.01516.42
7.3.200.0070.01116.57
7.3.190.0040.01316.32
7.3.180.0130.00616.51
7.3.170.0060.01516.15
7.3.160.0150.00616.24
7.3.150.0120.01016.51
7.3.140.0100.00616.41
7.3.130.0110.00816.34
7.3.120.0060.01216.45
7.3.110.0150.00616.52
7.3.100.0060.01216.43
7.3.90.0030.01616.30
7.3.80.0080.01216.34
7.3.70.0120.00616.39
7.3.60.0100.01016.39
7.3.50.0100.01016.36
7.3.40.0120.00616.37
7.3.30.0070.01016.46
7.3.20.0070.01116.21
7.3.10.0080.01116.33
7.3.00.0090.00916.59
7.2.330.0060.01216.90
7.2.320.0070.01016.86
7.2.310.0110.01116.82
7.2.300.0120.00616.60
7.2.290.0070.01616.49
7.2.280.0100.01016.81
7.2.270.0090.00916.79
7.2.260.0120.00616.74
7.2.250.0060.01216.78
7.2.240.0080.01216.74
7.2.230.0100.01016.49
7.2.220.0100.01016.79
7.2.210.0060.01516.64
7.2.200.0190.00416.56
7.2.190.0050.01416.63
7.2.180.0040.01516.71
7.2.170.0140.00416.68
7.2.160.0030.01516.56
7.2.150.0120.00616.86
7.2.140.0080.01116.72
7.2.130.0160.00316.89
7.2.120.0100.01016.71
7.2.110.0150.00316.63
7.2.100.0030.02016.65
7.2.90.0060.01216.66
7.2.80.0080.01116.65
7.2.70.0080.01116.62
7.2.60.0030.01516.63
7.2.50.0120.00616.84
7.2.40.0090.00916.79
7.2.30.0090.00916.65
7.2.20.0100.01016.79
7.2.10.0210.00416.66
7.2.00.0160.00716.62

preferences:
36.55 ms | 403 KiB | 5 Q