3v4l.org

run code in 300+ PHP versions simultaneously
<?php $parents = [1 => 0, 2 => 1, 3 => 2]; $cache = [1 => 5, 2 => 4, 3 => 3]; function count_posts($category_id, $parents, $cache) { $sum = 0; foreach ($parents as $child) { $sum += count_posts($child); } $sum += $cache[$category_id]; return $sum; } count_posts(1, $parents, $cache);

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)
8.3.70.0150.00616.75
8.3.60.0110.00418.43
8.3.50.0090.00922.15
8.3.40.0040.01118.80
8.3.30.0120.00318.79
8.3.20.0110.00420.33
8.3.10.0040.00420.56
8.3.00.0040.00420.52
8.2.190.0100.01016.58
8.2.180.0070.00718.14
8.2.170.0070.00722.96
8.2.160.0110.00420.47
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00820.75
8.2.110.0060.00322.20
8.2.100.0040.00817.80
8.2.90.0000.00819.17
8.2.80.0040.00417.97
8.2.70.0050.00317.63
8.2.60.0050.00317.93
8.2.50.0030.00918.09
8.2.40.0110.00020.35
8.2.30.0000.00719.36
8.2.20.0000.00717.66
8.2.10.0070.00018.11
8.2.00.0040.00418.11
8.1.280.0000.01425.92
8.1.270.0000.00823.67
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0080.00023.84
8.1.230.0060.00619.15
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0090.00017.48
8.1.190.0060.00317.35
8.1.180.0040.00418.10
8.1.170.0000.00818.57
8.1.160.0000.00720.95
8.1.150.0070.00018.89
8.1.140.0040.00419.60
8.1.130.0070.00017.59
8.1.120.0070.00017.44
8.1.110.0040.00417.39
8.1.100.0070.00017.36
8.1.90.0000.00717.47
8.1.80.0000.00717.51
8.1.70.0030.00317.47
8.1.60.0030.00617.58
8.1.50.0040.00417.44
8.1.40.0030.00617.46
8.1.30.0080.00017.68
8.1.20.0080.00017.65
8.1.10.0000.00717.58
8.1.00.0040.00417.57
8.0.300.0040.00418.77
8.0.290.0070.00016.88
8.0.280.0030.00318.46
8.0.270.0070.00017.26
8.0.260.0000.00617.19
8.0.250.0030.00316.96
8.0.240.0040.00417.00
8.0.230.0030.00317.08
8.0.220.0030.00316.84
8.0.210.0030.00617.01
8.0.200.0030.00316.90
8.0.190.0030.00617.01
8.0.180.0030.00516.96
8.0.170.0040.00416.99
8.0.160.0000.00816.93
8.0.150.0030.00316.89
8.0.140.0070.00016.92
8.0.130.0060.00013.38
8.0.120.0040.00416.92
8.0.110.0040.00416.88
8.0.100.0000.00717.04
8.0.90.0080.00017.04
8.0.80.0070.00816.92
8.0.70.0000.00716.86
8.0.60.0080.00016.99
8.0.50.0050.00316.92
8.0.30.0080.01017.07
8.0.20.0100.01217.42
8.0.10.0000.00817.16
8.0.00.0060.01116.79
7.4.330.0050.00016.79
7.4.320.0030.00316.60
7.4.300.0000.00816.64
7.4.290.0030.00316.64
7.4.280.0030.00516.62
7.4.270.0000.00616.49
7.4.260.0040.00416.62
7.4.250.0000.00816.34
7.4.240.0070.00016.45
7.4.230.0080.00016.71
7.4.220.0120.00616.57
7.4.210.0040.01116.41
7.4.200.0000.00716.43
7.4.160.0100.00716.73
7.4.150.0100.01017.40
7.4.140.0120.00917.86
7.4.130.0140.00416.67
7.4.120.0110.00616.67
7.4.110.0060.01016.61
7.4.100.0130.01016.57
7.4.90.0120.00916.51
7.4.80.0180.00319.39
7.4.70.0070.01016.70
7.4.60.0100.00616.67
7.4.50.0060.00916.50
7.4.40.0130.00316.61
7.4.30.0070.01116.49
7.4.00.0120.00315.23
7.3.330.0030.00313.16
7.3.320.0050.00013.37
7.3.310.0040.00416.41
7.3.300.0030.00316.22
7.3.290.0060.01016.36
7.3.280.0100.00716.34
7.3.270.0060.01117.40
7.3.260.0090.01516.60
7.3.250.0110.00816.56
7.3.240.0080.01016.42
7.3.230.0100.01016.41
7.3.210.0100.00716.46
7.3.200.0070.01019.39
7.3.190.0090.00916.52
7.3.180.0040.01216.65
7.3.170.0060.01216.39
7.3.160.0090.00616.46
7.2.330.0060.01216.73
7.2.320.0090.01216.35
7.2.310.0060.01116.61
7.2.300.0130.01016.67
7.2.290.0030.01316.72
7.2.80.0090.00616.27
7.2.60.0060.00916.93
7.2.00.0120.01219.30
7.1.200.0110.00015.85
7.1.100.0070.00718.00
7.1.70.0030.00716.86
7.1.60.0070.01719.19
7.1.50.0090.01316.61
7.1.00.0100.07022.46
7.0.200.0150.00814.72
7.0.60.0070.04321.82
7.0.50.0100.07017.84
7.0.40.0100.07720.11
7.0.30.0270.08320.26
7.0.20.0200.08020.24
7.0.10.0100.08320.29
7.0.00.0070.06720.05
5.6.280.0000.07321.02
5.6.210.0130.06720.59
5.6.200.0030.04718.19
5.6.190.0000.08020.63
5.6.180.0070.05020.52
5.6.170.0230.06020.71
5.6.160.0070.09020.66
5.6.150.0100.05718.29
5.6.140.0130.07718.12
5.6.130.0030.04018.26
5.6.120.0070.04021.15
5.6.110.0070.06720.98
5.6.100.0070.03720.99
5.6.90.0330.06020.99
5.6.80.0100.06020.44
5.5.350.0070.08020.45
5.5.340.0130.04317.98
5.5.330.0100.05020.35
5.5.320.0270.04020.28
5.5.310.0200.03320.31
5.5.300.0070.03717.97
5.5.290.0070.08718.05
5.5.280.0030.06020.94
5.5.270.0100.08720.71
5.5.260.0130.08020.65
5.5.250.0130.07320.78
5.5.240.0170.07320.04

preferences:
28.67 ms | 401 KiB | 5 Q