3v4l.org

run code in 300+ PHP versions simultaneously
<?php function P(array $sources) { $result=array(); $cache=array(); foreach($sources as $node) { $cache=$result; $result=array(); foreach($node as $item) { if(empty($cache)) { $result[]=array($item); } else { foreach($cache as $line) { $line[]=$item; $result[]=$line; } } } } return $result; } $result=P([ ['a', 'b', 'c', 'd'], ['a', 'b', 'c', 'd'], ['a', 'b', 'c', 'd'], ['a', 'b', 'c'] ]); print_r(array_map(function($a){return implode(",",$a);},$result));

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)
8.3.70.0110.01116.63
8.3.60.0130.00318.31
8.3.50.0090.00921.14
8.3.40.0090.00618.84
8.3.30.0090.00620.29
8.3.20.0030.00518.93
8.3.10.0040.00421.14
8.3.00.0050.00223.64
8.2.180.0100.01016.63
8.2.170.0040.01122.96
8.2.160.0070.00720.50
8.2.150.0080.00024.18
8.2.140.0120.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00719.95
8.2.110.0060.00319.39
8.2.100.0120.00017.72
8.2.90.0070.00019.30
8.2.80.0040.00419.32
8.2.70.0060.00317.63
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0080.00018.28
8.2.30.0000.00719.53
8.2.20.0020.00517.79
8.2.10.0040.00417.75
8.2.00.0090.00017.95
8.1.280.0070.01025.92
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0090.00022.47
8.1.230.0000.01121.18
8.1.220.0050.00318.77
8.1.210.0040.00419.10
8.1.200.0000.00817.61
8.1.190.0080.00017.54
8.1.180.0000.00818.10
8.1.170.0050.00318.64
8.1.160.0030.00618.93
8.1.150.0040.00418.77
8.1.140.0000.00717.57
8.1.130.0030.00317.95
8.1.120.0030.00717.58
8.1.110.0000.00817.53
8.1.100.0050.00217.59
8.1.90.0070.00017.62
8.1.80.0000.00717.64
8.1.70.0030.00317.47
8.1.60.0000.00917.70
8.1.50.0080.00017.49
8.1.40.0040.00417.58
8.1.30.0030.00517.73
8.1.20.0040.00417.75
8.1.10.0040.00417.59
8.1.00.0030.00517.63
8.0.300.0000.00720.14
8.0.290.0040.00417.38
8.0.280.0000.00718.52
8.0.270.0040.00417.47
8.0.260.0030.00316.85
8.0.250.0080.00017.05
8.0.240.0030.00616.97
8.0.230.0050.00317.00
8.0.220.0000.00716.90
8.0.210.0050.00516.91
8.0.200.0040.00417.05
8.0.190.0070.00016.94
8.0.180.0060.00316.93
8.0.170.0000.00817.02
8.0.160.0040.00417.01
8.0.150.0050.00216.90
8.0.140.0000.00716.98
8.0.130.0000.00613.42
8.0.120.0040.00416.99
8.0.110.0080.00016.89
8.0.100.0070.00016.86
8.0.90.0070.00017.07
8.0.80.0060.00917.06
8.0.70.0080.00017.07
8.0.60.0050.00317.05
8.0.50.0070.00017.03
8.0.30.0110.00917.27
8.0.20.0110.00817.40
8.0.10.0030.00616.96
8.0.00.0070.01216.84
7.4.330.0050.00016.81
7.4.320.0030.00316.48
7.4.300.0030.00316.63
7.4.290.0030.00316.75
7.4.280.0070.00016.68
7.4.270.0000.00716.74
7.4.260.0050.00013.39
7.4.250.0000.00716.62
7.4.240.0070.00016.55
7.4.230.0070.00016.64
7.4.220.0060.01216.56
7.4.210.0070.00916.70
7.4.200.0070.00016.82
7.4.190.0050.00216.84
7.4.160.0110.00816.61
7.4.150.0060.01217.40
7.4.140.0090.00917.86
7.4.130.0140.00616.58
7.4.120.0120.00616.55
7.4.110.0050.01316.66
7.4.100.0070.01016.64
7.4.90.0100.01016.54
7.4.80.0130.00919.39
7.4.70.0140.00316.68
7.4.60.0060.01216.44
7.4.50.0030.00616.32
7.4.40.0070.01122.77
7.4.30.0080.01616.80
7.4.00.0080.00814.89
7.3.330.0020.00213.43
7.3.320.0020.00213.42
7.3.310.0030.00316.46
7.3.300.0030.00316.35
7.3.290.0030.01016.41
7.3.280.0100.00916.49
7.3.270.0090.01017.40
7.3.260.0120.00718.24
7.3.250.0120.00516.49
7.3.240.0090.01516.54
7.3.230.0110.00716.72
7.3.210.0100.00716.49
7.3.200.0060.01719.39
7.3.190.0100.01016.64
7.3.180.0060.01016.50
7.3.170.0070.01016.60
7.3.160.0110.00416.55
7.3.120.0000.01515.02
7.2.330.0080.01316.81
7.2.320.0100.01416.85
7.2.310.0030.02116.66
7.2.300.0080.00816.68
7.2.290.0120.01216.92
7.2.00.0000.01319.63
7.1.100.0040.01118.14
7.1.70.0080.00517.03
7.1.60.0170.00719.17
7.1.50.0270.01434.83
7.1.00.0070.07022.30
7.0.200.0030.00916.89
7.0.140.0000.08022.02
7.0.100.0100.03320.11
7.0.90.0100.04720.03
7.0.80.0100.05720.05
7.0.70.0130.04320.00
7.0.60.0070.03720.02
7.0.50.0130.04320.40
7.0.40.0070.04320.05
7.0.30.0070.04019.95
7.0.20.0030.05320.01
7.0.10.0070.04020.09
7.0.00.0000.04720.04
5.6.280.0100.07021.03
5.6.250.0070.04020.67
5.6.240.0100.03720.66
5.6.230.0070.04020.65
5.6.220.0030.04020.78
5.6.210.0070.04320.79
5.6.200.0200.03021.13
5.6.190.0030.04321.31
5.6.180.0070.04021.12
5.6.170.0030.04721.18
5.6.160.0030.04321.09
5.6.150.0000.04721.08
5.6.140.0030.04321.09
5.6.130.0070.04721.18
5.6.120.0030.04021.06
5.6.110.0070.04021.14
5.6.100.0000.05021.14
5.6.90.0030.06021.10
5.6.80.0070.03720.52
5.6.70.0070.07720.53
5.6.60.0100.07720.54
5.6.50.0070.05320.37
5.6.40.0030.06720.43
5.6.30.0170.04020.34
5.6.20.0070.07720.53
5.6.10.0130.07320.47
5.6.00.0070.04020.69
5.5.380.0000.04320.39
5.5.370.0030.05020.39
5.5.360.0070.04320.43
5.5.350.0100.04020.43
5.5.340.0030.04320.85
5.5.330.0030.04020.88
5.5.320.0070.04320.82
5.5.310.0130.03320.93
5.5.300.0070.04720.87
5.5.290.0070.04320.93
5.5.280.0000.04720.83
5.5.270.0130.03320.77
5.5.260.0030.06020.84
5.5.250.0100.03720.73
5.5.240.0100.07720.36
5.5.230.0070.03720.19
5.5.220.0030.07720.15
5.5.210.0000.04720.06
5.5.200.0130.03720.26
5.5.190.0200.07320.31
5.5.180.0100.04320.26
5.5.160.0070.08020.23
5.5.150.0030.08020.13
5.5.140.0130.07720.27
5.5.130.0130.07720.30
5.5.120.0200.06320.19
5.5.110.0170.06720.27
5.5.100.0100.04720.14
5.5.90.0070.04020.09
5.5.80.0200.05720.08
5.5.70.0130.07320.07
5.5.60.0130.06320.10
5.5.50.0100.07320.12
5.5.40.0070.04020.24
5.5.30.0170.06020.04
5.5.20.0070.07020.10
5.5.10.0030.04320.00
5.5.00.0100.07720.09
5.4.450.0100.03719.38
5.4.440.0030.04319.49
5.4.430.0100.05319.20
5.4.420.0070.03719.37
5.4.410.0030.04719.27
5.4.400.0200.06018.96
5.4.390.0030.05319.14
5.4.380.0030.06318.85
5.4.370.0070.03719.03
5.4.360.0100.06319.24
5.4.350.0100.06719.03
5.4.340.0100.06019.21
5.4.320.0030.07019.18
5.4.310.0070.07718.85
5.4.300.0100.07319.03
5.4.290.0070.06719.37
5.4.280.0100.04319.05
5.4.270.0170.06719.20
5.4.260.0100.07719.23
5.4.250.0030.04719.12
5.4.240.0130.06019.16
5.4.230.0030.04019.22
5.4.220.0130.07318.94
5.4.210.0130.06319.25
5.4.200.0070.06019.09
5.4.190.0200.06318.89
5.4.180.0000.08019.11
5.4.170.0070.05319.11
5.4.160.0100.07019.15
5.4.150.0100.06319.11
5.4.140.0130.05716.50
5.4.130.0200.07716.24
5.4.120.0170.04316.51
5.4.110.0100.06016.49
5.4.100.0030.08016.38
5.4.90.0070.07316.42
5.4.80.0130.07016.36
5.4.70.0030.07716.41
5.4.60.0200.06316.46
5.4.50.0070.07716.39
5.4.40.0170.06716.35
5.4.30.0130.06716.44
5.4.20.0070.06716.46
5.4.10.0030.08316.29
5.4.00.0070.04715.93
5.3.290.0170.07014.67
5.3.280.0130.07014.72
5.3.270.0100.04014.55
5.3.260.0100.07014.55
5.3.250.0030.07014.73
5.3.240.0070.07314.74
5.3.230.0130.04014.61
5.3.220.0030.04314.62
5.3.210.0030.07714.69
5.3.200.0030.04714.71
5.3.190.0070.07714.66
5.3.180.0100.07314.49
5.3.170.0100.06014.68
5.3.160.0070.07014.63
5.3.150.0070.07714.68
5.3.140.0130.03714.63
5.3.130.0000.05714.50
5.3.120.0070.07714.48
5.3.110.0070.07014.53
5.3.100.0000.08014.07
5.3.90.0070.04714.14
5.3.80.0030.07714.11
5.3.70.0100.03714.16
5.3.60.0030.06713.94
5.3.50.0030.07714.08
5.3.40.0030.08013.93
5.3.30.0030.07714.04
5.3.20.0070.06313.67
5.3.10.0030.07313.78
5.3.00.0030.07013.66
5.2.170.0030.04712.10
5.2.160.0030.05712.10
5.2.150.0070.06012.10
5.2.140.0000.06712.10
5.2.130.0000.03712.10
5.2.120.0030.04312.10
5.2.110.0130.05012.10
5.2.100.0070.03012.10
5.2.90.0070.06012.10
5.2.80.0000.06312.10
5.2.70.0100.03712.10
5.2.60.0070.06012.10
5.2.50.0070.06012.10
5.2.40.0030.04312.10
5.2.30.0070.05012.10
5.2.20.0030.05712.10
5.2.10.0000.06012.10
5.2.00.0100.04712.10
5.1.60.0070.04312.10
5.1.50.0030.03012.10
5.1.40.0000.03712.10
5.1.30.0070.05012.10
5.1.20.0070.05012.10
5.1.10.0070.05012.10
5.1.00.0130.04712.10
5.0.50.0000.04712.10
5.0.40.0000.02712.10
5.0.30.0070.04712.10
5.0.20.0070.02312.10
5.0.10.0030.02312.10
5.0.00.0030.06012.10
4.4.90.0000.03712.10
4.4.80.0070.03312.10
4.4.70.0030.03312.10
4.4.60.0030.03012.10
4.4.50.0030.03312.10
4.4.40.0070.05012.10
4.4.30.0000.03012.10
4.4.20.0030.02012.10
4.4.10.0000.03712.10
4.4.00.0000.05012.10
4.3.110.0070.03012.10
4.3.100.0030.02312.10
4.3.90.0030.02312.10
4.3.80.0000.05012.10
4.3.70.0030.03312.10
4.3.60.0030.02012.10
4.3.50.0000.03712.10
4.3.40.0030.04012.10
4.3.30.0000.01712.10
4.3.20.0030.01712.10
4.3.10.0000.03712.10
4.3.00.0030.03312.10

preferences:
78.58 ms | 401 KiB | 5 Q