3v4l.org

run code in 300+ PHP versions simultaneously
<?php $products = [1, 2, 3, 4, 5]; $vendors = ["Amazon", "Newegg", "Frys"]; $combinations = array(); function pc_permute($items, $perms = array()) { if (empty($items)) { //echo join(' ', $perms) . "</br>"; //return $perms; array_push($combinations, $perms); } else { for ($i = count($items) - 1; $i >= 0; --$i) { $newitems = $items; $newperms = $perms; list($foo) = array_splice($newitems, $i, 1); array_unshift($newperms, $foo); pc_permute($newitems, $newperms); } } } var_dump(pc_permute($products));

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)
8.3.60.0090.00918.68
8.3.50.0070.01221.07
8.3.40.0120.00318.92
8.3.30.0110.00320.26
8.3.20.0050.00320.29
8.3.10.0080.00022.08
8.3.00.0080.00022.36
8.2.180.0070.01118.54
8.2.170.0100.00322.96
8.2.160.0130.00022.12
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0000.00721.06
8.2.110.0030.00622.15
8.2.100.0090.00317.72
8.2.90.0040.00419.28
8.2.80.0000.00719.41
8.2.70.0040.00417.50
8.2.60.0030.00517.93
8.2.50.0000.00918.07
8.2.40.0000.00918.06
8.2.30.0050.00318.20
8.2.20.0040.00417.87
8.2.10.0040.00417.79
8.2.00.0030.00717.74
8.1.270.0030.00623.99
8.1.260.0030.00526.35
8.1.250.0020.00528.09
8.1.240.0080.00023.98
8.1.230.0090.00319.10
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0080.00017.40
8.1.180.0070.00518.82
8.1.170.0050.00318.46
8.1.160.0040.00418.92
8.1.150.0040.00418.67
8.1.140.0000.00817.46
8.1.130.0000.00717.88
8.1.120.0030.00317.45
8.1.110.0040.00417.38
8.1.100.0040.00417.55
8.1.90.0030.00317.49
8.1.80.0030.00317.44
8.1.70.0000.00717.44
8.1.60.0060.00317.59
8.1.50.0040.00417.46
8.1.40.0040.00417.59
8.1.30.0000.00717.60
8.1.20.0000.00817.56
8.1.10.0080.00017.48
8.1.00.0040.00417.39
8.0.300.0000.00718.77
8.0.290.0040.00417.18
8.0.280.0000.00818.47
8.0.270.0050.00317.13
8.0.260.0060.00016.85
8.0.250.0040.00217.04
8.0.240.0000.00716.97
8.0.230.0070.00016.95
8.0.220.0030.00316.82
8.0.210.0040.00416.91
8.0.200.0000.00716.84
8.0.190.0040.00416.97
8.0.180.0040.00416.95
8.0.170.0060.00317.01
8.0.160.0040.00416.86
8.0.150.0000.00716.88
8.0.140.0000.00916.95
8.0.130.0000.00613.42
8.0.120.0030.00516.79
8.0.110.0000.00717.05
8.0.100.0000.00716.99
8.0.90.0000.00716.98
8.0.80.0040.01116.96
8.0.70.0030.00517.02
8.0.60.0040.00416.92
8.0.50.0040.00416.98
8.0.30.0090.01017.10
8.0.20.0090.00917.40
8.0.10.0040.00417.16
8.0.00.0120.00716.71
7.4.330.0050.00315.00
7.4.320.0000.00716.55
7.4.300.0000.00716.52
7.4.290.0080.00016.65
7.4.280.0000.00716.50
7.4.270.0070.00016.54
7.4.260.0040.00413.40
7.4.250.0080.00016.55
7.4.240.0060.00216.61
7.4.230.0080.00016.37
7.4.220.0190.00916.48
7.4.210.0090.00716.54
7.4.200.0000.00716.43
7.4.190.0040.00416.60
7.4.160.0100.00716.71
7.4.150.0090.01217.40
7.4.140.0110.01217.86
7.4.130.0100.01016.43
7.4.120.0110.00916.56
7.4.110.0070.01016.59
7.4.100.0070.01316.62
7.4.90.0160.01016.48
7.4.80.0150.01119.39
7.4.70.0180.00016.48
7.4.60.0090.01016.39
7.4.50.0000.00816.44
7.4.40.0040.01122.77
7.4.30.0080.01116.38
7.4.00.0050.01215.04
7.3.330.0050.00013.39
7.3.320.0030.00313.40
7.3.310.0000.00716.48
7.3.300.0070.00016.38
7.3.290.0070.01316.45
7.3.280.0100.00716.41
7.3.270.0040.01617.40
7.3.260.0150.00916.65
7.3.250.0040.01816.62
7.3.240.0030.01616.42
7.3.230.0100.00816.39
7.3.210.0150.01016.40
7.3.200.0100.00719.39
7.3.190.0120.01016.38
7.3.180.0240.00016.60
7.3.170.0100.01016.56
7.3.160.0070.01016.43
7.3.120.0090.00814.89
7.3.110.0030.01414.98
7.3.100.0100.00714.89
7.3.90.0080.00414.89
7.3.80.0070.01014.90
7.3.70.0070.01015.04
7.3.60.0060.00914.94
7.3.50.0060.00914.95
7.3.40.0000.01014.90
7.3.30.0130.00314.71
7.3.20.0100.00716.89
7.3.10.0030.01216.51
7.3.00.0080.01116.64
7.2.330.0140.00716.50
7.2.320.0110.00616.46
7.2.310.0160.00516.68
7.2.300.0090.01216.67
7.2.290.0140.00416.75
7.2.250.0000.01515.07
7.2.240.0030.01615.21
7.2.230.0000.01415.02
7.2.220.0040.01115.03
7.2.210.0000.01915.24
7.2.200.0000.01215.20
7.2.190.0150.00014.89
7.2.180.0040.01415.02
7.2.170.0080.00814.96
7.2.60.0120.00316.85
7.1.330.0110.00315.96
7.1.320.0060.00615.61
7.1.310.0040.01115.79
7.1.300.0070.01015.97
7.1.290.0090.00615.63
7.1.280.0070.01015.68
7.1.270.0060.00915.95
7.1.260.0080.00615.93
7.1.200.0000.01515.94
7.1.70.0000.00717.24
7.1.60.0060.01919.32
7.1.50.0090.00316.96
7.1.00.0000.03722.31
7.0.200.0000.00916.76
7.0.140.0030.07322.08
7.0.100.0000.05319.93
7.0.90.0270.05719.86
7.0.80.0330.05719.95
7.0.70.0000.06020.09
7.0.60.0370.08019.91
7.0.50.0070.04720.36
7.0.40.0070.07319.98
7.0.30.0070.06720.05
7.0.20.0100.04720.07
7.0.10.0030.06020.12
7.0.00.0070.08020.13
5.6.280.0070.07320.86
5.6.250.0170.05720.52
5.6.240.0170.08020.68
5.6.230.0030.09020.46
5.6.220.0000.05320.63
5.6.210.0170.07320.60
5.6.200.0100.07720.99
5.6.190.0030.06721.10
5.6.180.0100.07720.98
5.6.170.0070.05721.01
5.6.160.0030.08721.08
5.6.150.0030.08721.14
5.6.140.0170.07720.91
5.6.130.0230.07321.05
5.6.120.0030.08021.00
5.6.110.0000.05321.06
5.6.100.0070.04721.06
5.6.90.0100.04721.03
5.6.80.0100.05020.30
5.6.70.0130.07320.39
5.6.60.0170.04020.38
5.6.50.0100.06320.46
5.6.40.0130.08320.45
5.6.30.0070.06020.37
5.6.20.0070.07320.48
5.6.10.0000.08320.33
5.6.00.0130.07320.32
5.5.380.0070.06020.38
5.5.370.0030.08720.38
5.5.360.0070.04720.35
5.5.350.0030.05320.30
5.5.340.0100.08720.60
5.5.330.0030.04020.70
5.5.320.0070.07720.77
5.5.310.0100.08320.73
5.5.300.0030.08720.79
5.5.290.0170.07320.89
5.5.280.0130.06020.85
5.5.270.0070.04720.76
5.5.260.0100.08020.85
5.5.250.0200.05320.69
5.5.240.0070.04320.27
5.5.230.0070.05720.27
5.5.220.0100.08019.97
5.5.210.0070.05320.14
5.5.200.0170.06320.22
5.5.190.0070.07020.23
5.5.180.0000.05320.11
5.5.160.0170.07020.08
5.5.150.0230.05720.23
5.5.140.0030.04720.18
5.5.130.0070.06320.20
5.5.120.0070.08320.17
5.5.110.0100.08020.04
5.5.100.0100.06720.13
5.5.90.0070.03719.90
5.5.80.0100.04320.00
5.5.70.0130.07320.05
5.5.60.0170.06719.93
5.5.50.0100.05320.04
5.5.40.0100.07720.11
5.5.30.0070.08019.99
5.5.20.0030.08019.96
5.5.10.0070.04720.01
5.5.00.0000.04320.00
5.4.450.0030.08719.21
5.4.440.0200.03319.38
5.4.430.0070.07719.55
5.4.420.0100.06019.45
5.4.410.0130.05019.34
5.4.400.0070.07319.01
5.4.390.0100.06019.23
5.4.380.0030.08018.90
5.4.370.0100.06318.88
5.4.360.0070.06719.03
5.4.350.0000.07319.05
5.4.340.0030.06719.16
5.4.320.0000.04318.91
5.4.310.0100.07019.09
5.4.300.0070.08018.85
5.4.290.0030.05718.95
5.4.280.0100.07018.85
5.4.270.0070.04319.04
5.4.260.0070.07319.04
5.4.250.0070.07319.04
5.4.240.0130.06319.18
5.4.230.0030.05719.06
5.4.220.0030.06719.16
5.4.210.0070.06719.04
5.4.200.0100.07018.95
5.4.190.0100.07319.22
5.4.180.0130.08019.03
5.4.170.0000.05318.94
5.4.160.0000.05019.15
5.4.150.0070.06319.12
5.4.140.0030.04316.38
5.4.130.0000.07716.36
5.4.120.0100.05316.14
5.4.110.0170.03316.51
5.4.100.0070.03016.32
5.4.90.0030.07016.40
5.4.80.0070.06716.50
5.4.70.0030.04016.38
5.4.60.0100.07316.40
5.4.50.0130.07016.44
5.4.40.0130.07016.39
5.4.30.0130.06316.41
5.4.20.0000.07716.36
5.4.10.0130.07016.46
5.4.00.0000.07315.59
5.3.290.0030.08314.62
5.3.280.0100.07314.58
5.3.270.0030.08014.47
5.3.260.0030.07714.52
5.3.250.0030.07714.61
5.3.240.0070.05014.43
5.3.230.0070.04014.42
5.3.220.0030.04014.39
5.3.210.0030.07314.52
5.3.200.0070.07314.59
5.3.190.0030.05014.56
5.3.180.0100.04714.41
5.3.170.0030.07314.57
5.3.160.0170.06314.48
5.3.150.0070.07314.54
5.3.140.0030.07714.38
5.3.130.0070.07014.53
5.3.120.0170.06314.41
5.3.110.0170.03314.54
5.3.100.0100.07314.01
5.3.90.0070.07314.00
5.3.80.0200.05714.01
5.3.70.0070.03714.01
5.3.60.0030.06313.86
5.3.50.0000.08013.86
5.3.40.0030.03313.73
5.3.30.0030.07713.78
5.3.20.0170.05713.68
5.3.10.0030.06313.61
5.3.00.0030.03313.58
5.2.170.0100.05310.93
5.2.160.0000.02711.14
5.2.150.0030.02311.21
5.2.140.0030.05711.13
5.2.130.0030.05311.09
5.2.120.0130.04011.09
5.2.110.0070.05011.08
5.2.100.0000.06310.92
5.2.90.0070.06011.07
5.2.80.0000.07011.12
5.2.70.0070.05711.15
5.2.60.0070.06011.09
5.2.50.0030.06010.98
5.2.40.0070.04010.84
5.2.30.0030.04710.84
5.2.20.0030.06710.95
5.2.10.0030.06010.91
5.2.00.0070.03010.73
5.1.60.0000.0579.98
5.1.50.0070.05010.03
5.1.40.0070.0409.86
5.1.30.0070.03010.37
5.1.20.0030.03710.29
5.1.10.0000.0639.95
5.1.00.0070.05010.13
5.0.50.0000.0478.72
5.0.40.0000.0438.72
5.0.30.0000.0538.72
5.0.20.0030.0438.72
5.0.10.0070.0408.72
5.0.00.0030.0578.72
4.4.90.0000.0338.72
4.4.80.0030.0338.72
4.4.70.0030.0208.72
4.4.60.0000.0208.72
4.4.50.0000.0178.72
4.4.40.0100.0478.72
4.4.30.0000.0378.72
4.4.20.0030.0338.72
4.4.10.0030.0308.72
4.4.00.0000.0508.72
4.3.110.0070.0238.72
4.3.100.0000.0378.72
4.3.90.0100.0278.72
4.3.80.0030.0538.72
4.3.70.0000.0308.72
4.3.60.0030.0238.72
4.3.50.0100.0308.72
4.3.40.0000.0478.72
4.3.30.0070.0308.72
4.3.20.0000.0378.72
4.3.10.0000.0408.72
4.3.00.0000.0378.72

preferences:
60.89 ms | 400 KiB | 5 Q