3v4l.org

run code in 300+ PHP versions simultaneously
<?php function Y ($le) {return (function ($f) {return $f($f); })(function ($f) use ($le) {return $le(function ($x) use ($f) {return $f($f)($x); }); }); } $le = function ($factorial) {return function ($n) use ($factorial) {return $n < 2 ? $n : $n * $factorial($n - 1); }; }; $factorial = Y($le); echo $factorial(1) . PHP_EOL; // 1 echo $factorial(2) . PHP_EOL; // 2 echo $factorial(5) . PHP_EOL; // 120

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)
8.3.60.0090.01216.75
8.3.50.0090.00921.20
8.3.40.0100.01018.87
8.3.30.0120.00318.67
8.3.20.0040.00421.76
8.3.10.0080.00022.09
8.3.00.0040.00421.77
8.2.180.0100.01025.92
8.2.170.0070.01118.94
8.2.160.0170.00322.96
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.87
8.2.110.0040.00420.58
8.2.100.0090.00317.84
8.2.90.0050.00319.09
8.2.80.0030.00617.97
8.2.70.0030.00517.50
8.2.60.0000.00817.93
8.2.50.0000.00918.10
8.2.40.0040.00419.44
8.2.30.0040.00418.04
8.2.20.0040.00718.05
8.2.10.0050.00219.25
8.2.00.0040.00419.32
8.1.280.0070.00725.92
8.1.270.0000.00823.99
8.1.260.0080.00026.35
8.1.250.0000.00928.09
8.1.240.0030.00622.47
8.1.230.0050.00522.66
8.1.220.0080.00017.75
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0000.00718.10
8.1.170.0030.00520.45
8.1.160.0040.00418.82
8.1.150.0060.00318.77
8.1.140.0000.00720.95
8.1.130.0030.00318.81
8.1.120.0000.00717.48
8.1.110.0030.00517.50
8.1.100.0060.00317.48
8.1.90.0000.01017.46
8.1.80.0000.00817.47
8.1.70.0070.00017.46
8.1.60.0080.00017.55
8.1.50.0070.00017.55
8.1.40.0030.00517.41
8.1.30.0030.00517.61
8.1.20.0060.00317.54
8.1.10.0040.00417.55
8.1.00.0000.00817.45
8.0.300.0000.00718.77
8.0.290.0070.00316.75
8.0.280.0030.00318.52
8.0.270.0030.00317.19
8.0.260.0030.00318.52
8.0.250.0000.00716.86
8.0.240.0100.00016.82
8.0.230.0000.00816.96
8.0.220.0000.00716.77
8.0.210.0030.00316.85
8.0.200.0070.00016.95
8.0.190.0040.00416.84
8.0.180.0060.00316.95
8.0.170.0080.00016.80
8.0.160.0040.00416.86
8.0.150.0040.00416.73
8.0.140.0000.00816.88
8.0.130.0030.00313.30
8.0.120.0030.00516.72
8.0.110.0000.00816.88
8.0.100.0080.00016.80
8.0.90.0060.00316.89
8.0.80.0070.01116.85
8.0.70.0070.00016.83
8.0.60.0040.00416.84
8.0.50.0040.00416.88
8.0.30.0150.00317.21
8.0.20.0090.01517.40
8.0.10.0000.00716.84
8.0.00.0130.00416.74
7.4.330.0030.00315.55
7.4.320.0030.00316.65
7.4.300.0060.00016.63
7.4.290.0000.00716.54
7.4.280.0080.00016.50
7.4.270.0030.00616.64
7.4.260.0000.00716.59
7.4.250.0030.00516.59
7.4.240.0020.00616.63
7.4.230.0060.00116.50
7.4.220.0000.00716.63
7.4.210.0050.01116.60
7.4.200.0040.00416.39
7.4.140.0190.03017.86
7.4.130.0130.00716.50
7.4.120.0170.00316.46
7.4.110.0140.00316.66
7.4.100.0100.00716.46
7.4.90.0060.01116.54
7.4.80.0050.01019.39
7.4.70.0060.01216.68
7.4.60.0120.00916.61
7.4.50.0060.00616.36
7.4.40.0040.01216.53
7.4.00.0090.00614.92
7.3.330.0050.00213.14
7.3.320.0000.00513.28
7.3.310.0030.00316.34
7.3.300.0070.00016.34
7.3.290.0050.00316.18
7.3.280.0100.01016.27
7.3.260.0120.00816.50
7.3.240.0110.00816.45
7.3.230.0060.01616.59
7.3.210.0170.00016.39
7.3.200.0100.00716.36
7.3.190.0090.00916.68
7.3.180.0090.00916.59
7.3.170.0130.01016.42
7.3.160.0030.01316.49
7.3.70.0000.01014.67
7.3.60.0050.00514.70
7.3.50.0060.00614.70
7.3.40.0060.00914.56
7.3.30.0110.00014.45
7.3.20.0100.00714.83
7.3.10.0100.00814.60
7.3.00.0140.00514.70
7.2.330.0140.00316.70
7.2.320.0120.00616.58
7.2.310.0180.01416.73
7.2.300.0110.00616.55
7.2.290.0040.01216.71
7.2.200.0100.00314.97
7.2.190.0060.00814.78
7.2.180.0090.00214.99
7.2.170.0100.00614.79
7.2.160.0050.00714.93
7.2.150.0120.00414.96
7.2.140.0130.00514.87
7.2.130.0130.00715.02
7.2.120.0100.00814.92
7.2.110.0100.01215.04
7.2.100.0090.00615.01
7.2.90.0060.00914.91
7.2.80.0120.00314.99
7.2.70.0050.01014.98
7.2.60.0090.00714.96
7.2.50.0130.00614.83
7.2.40.0100.00414.86
7.2.30.0100.00915.10
7.2.20.0580.00614.94
7.2.10.0120.00514.80
7.2.00.0060.01014.92
7.1.300.0570.00213.90
7.1.290.0100.00613.62
7.1.280.0080.00713.79
7.1.270.0090.00613.76
7.1.260.0090.00713.77
7.1.250.0080.00813.89

preferences:
76.65 ms | 401 KiB | 5 Q