3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Normal Recusion function factorial1($num) { return $num === 0 ? 1 : $num * factorial1($num - 1); } // Tail Recusion function factorial2($num) { return factorialIter($num, 1); } // Tail Recusion Helper function factorialIter($num, $acc) { return $num === 0 ? $acc : factorialIter($num - 1, $acc * $num); } echo "<pre>"; $no = 100 ; echo factorial1($no), PHP_EOL; echo factorial2($no), PHP_EOL; ?>

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)
8.3.60.0170.00316.38
8.3.50.0090.01216.56
8.3.40.0070.01018.70
8.3.30.0080.00618.67
8.3.20.0040.00418.57
8.3.10.0040.00420.53
8.3.00.0030.00619.38
8.2.180.0030.01516.63
8.2.170.0090.00622.96
8.2.160.0110.00421.02
8.2.150.0050.00324.18
8.2.140.0110.00424.66
8.2.130.0030.00526.16
8.2.120.0040.00419.89
8.2.110.0090.00019.14
8.2.100.0000.01117.67
8.2.90.0000.00819.26
8.2.80.0000.00817.97
8.2.70.0040.00717.49
8.2.60.0000.00818.04
8.2.50.0040.00418.10
8.2.40.0040.00418.22
8.2.30.0000.00817.96
8.2.20.0040.00417.70
8.2.10.0070.00017.68
8.2.00.0000.00717.68
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00721.36
8.1.230.0130.00017.61
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0040.00418.90
8.1.160.0050.00318.78
8.1.150.0040.00418.59
8.1.140.0030.00617.46
8.1.130.0000.00717.75
8.1.120.0050.00317.48
8.1.110.0000.00717.43
8.1.100.0040.00417.46
8.1.90.0000.00717.34
8.1.80.0050.00317.44
8.1.70.0000.00717.39
8.1.60.0060.00317.57
8.1.50.0000.00717.47
8.1.40.0000.00817.51
8.1.30.0000.00817.63
8.1.20.0050.00517.70
8.1.10.0050.00317.54
8.1.00.0030.00617.47
8.0.300.0080.00318.77
8.0.290.0060.00316.75
8.0.280.0030.00318.51
8.0.270.0040.00417.18
8.0.260.0030.00316.83
8.0.250.0000.00717.00
8.0.240.0040.00416.98
8.0.230.0070.00017.00
8.0.220.0020.00516.84
8.0.210.0040.00416.82
8.0.200.0000.00716.76
8.0.190.0070.00016.88
8.0.180.0000.00716.87
8.0.170.0050.00316.74
8.0.160.0000.00716.91
8.0.150.0080.00016.79
8.0.140.0030.00616.82
8.0.130.0030.00313.25
8.0.120.0050.00316.68
8.0.110.0040.00416.71
8.0.100.0000.00716.73
8.0.90.0000.00816.62
8.0.80.0060.00916.77
8.0.70.0070.00016.69
8.0.60.0040.00416.73
8.0.50.0000.00816.72
8.0.30.0060.01317.24
8.0.20.0070.01217.15
8.0.10.0000.00716.98
8.0.00.0070.01416.80
7.4.330.0050.00013.02
7.4.320.0000.00716.37
7.4.300.0000.00616.41
7.4.290.0030.00316.46
7.4.280.0040.00416.45
7.4.270.0060.00316.54
7.4.260.0000.00513.29
7.4.250.0050.00316.58
7.4.240.0080.00016.54
7.4.230.0000.00716.41
7.4.220.0120.00616.65
7.4.210.0080.00816.57
7.4.200.0030.00516.52
7.4.190.0070.00016.57
7.4.160.0100.01016.57
7.4.150.0120.00616.57
7.4.140.0120.00716.40
7.4.130.0110.00616.51
7.4.120.0080.00816.57
7.4.110.0000.01716.49
7.4.100.0100.00716.56
7.4.90.0090.00916.59
7.4.80.0060.01216.57
7.4.70.0120.00616.45
7.4.60.0160.00316.61
7.4.50.0040.00416.61
7.4.40.0100.00716.53
7.4.30.0090.00916.47
7.4.00.0080.00815.20
7.3.330.0000.00613.30
7.3.320.0060.00013.23
7.3.310.0000.00816.27
7.3.300.0040.00416.29
7.3.290.0100.01016.39
7.3.280.0080.00816.37
7.3.270.0110.00516.43
7.3.260.0090.00816.34
7.3.250.0090.01216.31
7.3.240.0070.01016.56
7.3.230.0160.00316.62
7.3.210.0090.00616.34
7.3.200.0060.01519.39
7.3.190.0170.00316.63
7.3.180.0100.00516.35
7.3.170.0120.00416.42
7.3.160.0000.01616.29
7.3.120.0000.01514.81
7.2.330.0090.00916.61
7.2.320.0090.00916.43
7.2.310.0130.00916.39
7.2.300.0110.00616.61
7.2.290.0100.00616.27
7.2.80.0100.00016.35
7.2.60.0100.00316.76
7.1.200.0000.00815.57
7.1.70.0000.00717.16
7.1.60.0100.01419.40
7.1.50.0070.01416.82
7.1.00.0000.05022.28
7.0.200.0070.00016.72
7.0.140.0000.07021.92
7.0.120.0000.07722.09
7.0.60.0070.07021.69
7.0.50.0030.08317.88
7.0.40.0100.07020.24
7.0.30.0470.08020.13
7.0.20.0200.04720.25
7.0.10.0100.03720.24
7.0.00.0100.04720.25
5.6.280.0030.07321.11
5.6.210.0070.03720.52
5.6.200.0070.06718.16
5.6.190.0070.08720.57
5.6.180.0370.04320.61
5.6.170.0230.03320.50
5.6.160.0070.04020.56
5.6.150.0070.04718.18
5.6.140.0100.03318.30
5.6.130.0130.07718.26
5.6.120.0070.07021.00
5.6.110.0100.07321.02
5.6.100.0070.03721.02
5.6.90.0070.07321.14
5.6.80.0130.08720.39
5.5.350.0270.07320.36
5.5.340.0030.04017.95
5.5.330.0070.04320.27
5.5.320.0430.05020.38
5.5.310.0230.07320.27
5.5.300.0070.04318.06
5.5.290.0070.08017.94
5.5.280.0070.08320.70
5.5.270.0070.04320.76
5.5.260.0100.03320.88
5.5.250.0100.08320.48
5.5.240.0000.03720.17
5.4.450.0000.08319.48
5.4.440.0000.08319.57
5.4.430.0070.05019.54
5.4.420.0100.07019.19
5.4.410.0030.05319.07
5.4.400.0100.03318.86
5.4.390.0100.07019.14
5.4.380.0170.07019.23
5.4.370.0070.07019.25
5.4.360.0070.07718.98
5.4.350.0070.04718.97
5.4.340.0070.03718.97
5.4.320.0070.07018.88
5.4.310.0100.06719.24
5.4.300.0030.08019.16
5.4.290.0130.03319.24
5.4.280.0100.07318.84
5.4.270.0030.06719.15
5.4.260.0030.08018.85
5.4.250.0100.07719.24
5.4.240.0030.06318.97
5.4.230.0100.04019.23
5.4.220.0030.04719.17
5.4.210.0130.06319.20
5.4.200.0130.06718.97
5.4.190.0070.03718.84
5.4.180.0100.07718.93
5.4.170.0000.06319.18
5.4.160.0130.06719.24
5.4.150.0100.06719.13
5.4.140.0000.04016.43
5.4.130.0070.03316.59
5.4.120.0000.04016.45
5.4.110.0130.02716.50
5.4.100.0030.04016.46
5.4.90.0000.03716.44
5.4.80.0030.03716.49
5.4.70.0070.03016.31
5.4.60.0070.03316.43
5.4.50.0030.03716.40
5.4.40.0000.04016.33
5.4.30.0030.03316.38
5.4.20.0070.03016.37
5.4.10.0000.03716.40
5.4.00.0000.03715.96
5.3.290.0030.07714.69
5.3.280.0100.06314.64
5.3.270.0030.08014.63
5.3.260.0130.06314.64
5.3.250.0070.04014.66
5.3.240.0100.06314.75
5.3.230.0000.04014.61
5.3.220.0030.03714.73
5.3.210.0000.04014.72
5.3.200.0070.03314.57
5.3.190.0030.03714.61
5.3.180.0000.04014.64
5.3.170.0100.03714.64
5.3.160.0070.03714.61
5.3.150.0100.03014.64
5.3.140.0000.04014.57
5.3.130.0000.04014.57
5.3.120.0030.03714.57
5.3.110.0030.03714.70
5.3.100.0000.04014.21
5.3.90.0000.04014.04
5.3.80.0000.03714.17
5.3.70.0000.04314.08
5.3.60.0030.03714.09
5.3.50.0070.03313.93
5.3.40.0000.03713.98
5.3.30.0000.03713.95
5.3.20.0000.03713.61
5.3.10.0030.03313.66
5.3.00.0030.03313.65
5.2.170.0030.03011.23
5.2.160.0070.03311.25
5.2.150.0000.03311.19
5.2.140.0030.02711.23
5.2.130.0030.03311.34
5.2.120.0000.03011.19
5.2.110.0000.03011.15
5.2.100.0000.03011.35
5.2.90.0000.03011.25
5.2.80.0000.03011.20
5.2.70.0000.03011.11
5.2.60.0000.03311.20
5.2.50.0000.03311.17
5.2.40.0030.02711.15
5.2.30.0000.03011.03
5.2.20.0030.02711.10
5.2.10.0000.03311.01
5.2.00.0000.03010.82
5.1.60.0000.02710.24
5.1.50.0000.06010.16
5.1.40.0030.05310.08
5.1.30.0000.06010.49
5.1.20.0030.06310.50
5.1.10.0000.06010.19
5.1.00.0030.05010.32
5.0.50.0100.0408.64
5.0.40.0000.0508.67
5.0.30.0030.0638.41
5.0.20.0000.0278.34
5.0.10.0030.0308.35
5.0.00.0030.0408.30
4.4.90.0030.0137.83
4.4.80.0030.0137.83
4.4.70.0000.0207.83
4.4.60.0000.0177.83
4.4.50.0030.0137.83
4.4.40.0030.0237.83
4.4.30.0000.0337.83
4.4.20.0000.0407.83
4.4.10.0000.0307.83
4.4.00.0030.0377.83
4.3.110.0070.0337.83
4.3.100.0030.0337.83
4.3.90.0000.0407.83
4.3.80.0000.0577.83
4.3.70.0000.0337.83
4.3.60.0000.0377.83
4.3.50.0000.0237.83
4.3.40.0030.0237.83
4.3.30.0000.0377.83
4.3.20.0000.0407.83
4.3.10.0000.0237.83
4.3.00.0030.0237.83

preferences:
31.77 ms | 401 KiB | 5 Q