3v4l.org

run code in 300+ PHP versions simultaneously
<?hh $zero = $f ==> $x ==> $x; $one = $f ==> $x ==> $f($x); $two = $f ==> $x ==> $f($f($x)); $three = $f ==> $x ==> $f($f($f($x))); $five = $f ==> $x ==> $f($f($f($f($f($x))))); $true = $x ==> $y ==> $x; $false = $x ==> $y ==> $y; $if = $f ==> $f; $isZero = $f ==> ($f($x ==> $false))($true); $increment = $n ==> $f ==> $x ==> $f(($n($f))($x)); $decrement = $n ==> $f ==> $x ==> (($n($g ==> $h ==> $h($g($f))))($y ==> $x))($y ==> $y); $add = $m ==> $n ==> ($n($increment))($m); $subtract = $m ==> $n ==> ($n($decrement))($m); $multiply = $m ==> $n ==> ($n($add($m)))($zero); $power = $m ==> $n ==> ($n($multiply($m)))($one); $pair = $x ==> $y ==> $f ==> ($f($x))($y); $car = $p ==> $p($x ==> $y ==> $x); $cdr = $p ==> $p($x ==> $y ==> $y); $toNum = $f ==> ($f($x ==> $x + 1))(0); $toBool = $f ==> (($if($f))(true))(false); $toTextBool = $f ==> $toBool($f) ? 'true' : 'false'; echo $toTextBool($isZero($zero));

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)
8.3.60.0070.00716.50
8.3.50.0100.00822.85
8.3.40.0110.00418.61
8.3.30.0110.00719.04
8.3.20.0040.00420.20
8.3.10.0060.00321.59
8.3.00.0000.00817.38
8.2.180.0120.00616.32
8.2.170.0070.00722.96
8.2.160.0100.01020.11
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0020.00521.04
8.2.110.0060.00322.29
8.2.100.0110.00017.78
8.2.90.0040.00418.88
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0030.00617.80
8.2.50.0000.00818.07
8.2.40.0000.00918.03
8.2.30.0040.00417.88
8.2.20.0080.00017.55
8.2.10.0040.00417.96
8.2.00.0000.00717.48
8.1.280.0140.00025.92
8.1.270.0030.00624.04
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0000.00924.02
8.1.230.0110.00019.16
8.1.220.0000.00717.74
8.1.210.0000.00918.77
8.1.200.0060.00317.22
8.1.190.0080.00016.98
8.1.180.0000.00818.88
8.1.170.0090.00018.70
8.1.160.0080.00021.90
8.1.150.0070.00018.65
8.1.140.0040.00417.27
8.1.130.0030.00519.51
8.1.120.0040.00417.36
8.1.110.0030.00517.30
8.1.100.0000.00817.27
8.1.90.0000.00717.38
8.1.80.0050.00317.21
8.1.70.0040.00417.29
8.1.60.0040.00417.45
8.1.50.0040.00417.32
8.1.40.0030.00517.39
8.1.30.0030.00617.51
8.1.20.0060.00317.46
8.1.10.0040.00417.46
8.1.00.0000.01017.39
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.36
8.0.270.0000.00717.25
8.0.260.0030.00517.12
8.0.250.0070.00016.75
8.0.240.0040.00416.81
8.0.230.0040.00416.84
8.0.220.0030.00316.63
8.0.210.0070.00016.77
8.0.200.0000.00716.82
8.0.190.0030.00616.72
8.0.180.0040.00416.75
8.0.170.0040.00416.73
8.0.160.0000.00716.89
8.0.150.0000.00716.72
8.0.140.0000.01016.76
8.0.130.0000.00513.32
8.0.120.0040.00416.64
8.0.110.0000.00716.77
8.0.100.0040.00416.66
8.0.90.0000.00716.70
8.0.80.0090.00616.66
8.0.70.0050.00216.70
8.0.60.0080.00016.55
8.0.50.0000.00716.77
8.0.30.0100.01617.00
8.0.20.0130.01217.40
8.0.10.0000.00716.84
8.0.00.0100.00716.77
7.4.330.0030.00315.17
7.4.320.0000.00716.37
7.4.300.0000.00616.26
7.4.290.0040.00416.44
7.4.280.0050.00216.21
7.4.270.0030.00316.27
7.4.260.0030.00316.28
7.4.250.0040.00416.42
7.4.240.0020.00516.35
7.4.230.0030.00316.39
7.4.220.0100.00716.35
7.4.210.0080.01216.36
7.4.200.0070.00016.50
7.4.160.0090.00616.38
7.4.150.0100.00717.40
7.4.140.0060.01317.86
7.4.130.0100.00616.39
7.4.120.0090.00816.34
7.4.110.0030.01516.41
7.4.100.0090.01016.38
7.4.90.0090.00916.29
7.4.80.0040.01619.39
7.4.70.0120.00316.48
7.4.60.0030.01316.39
7.4.50.0000.00816.54
7.4.40.0100.00716.20
7.4.30.0130.00316.35
7.3.330.0000.00512.99
7.3.320.0020.00213.09
7.3.310.0000.00615.96
7.3.300.0050.00216.13
7.3.290.0070.00716.26
7.3.280.0090.00816.12
7.3.270.0100.00917.40
7.3.260.0040.01416.45
7.3.250.0070.01016.16
7.3.240.0090.00616.20
7.3.230.0090.00916.39
7.3.210.0090.00916.39
7.3.200.0100.00719.39
7.3.190.0080.00816.39
7.3.180.0090.00616.15
7.3.170.0120.00316.27
7.3.160.0070.01416.24
7.2.330.0070.01016.47
7.2.320.0160.01116.59
7.2.310.0140.00316.71
7.2.300.0030.01316.27
7.2.290.0100.00716.36
5.4.320.0090.03312.45
5.4.310.0080.03612.45
5.4.300.0060.03812.45
5.4.290.0070.04012.45
5.4.280.0040.03812.34
5.4.270.0110.04812.35
5.4.260.0030.04212.35
5.4.250.0070.03912.35
5.4.240.0020.04212.35
5.4.230.0070.03712.34
5.4.220.0090.04212.34
5.4.210.0050.03812.34
5.4.200.0050.04112.34
5.4.190.0050.03612.34
5.4.180.0080.03412.33
5.4.170.0030.05012.35
5.4.160.0050.03612.34
5.4.150.0060.03612.34
5.4.140.0060.03712.02
5.4.130.0080.03412.01
5.4.120.0060.03611.97
5.4.110.0080.03411.96
5.4.100.0070.03411.96
5.4.90.0040.04211.96
5.4.80.0070.04611.96
5.4.70.0090.04311.96
5.4.60.0080.03911.96
5.4.50.0060.04011.96
5.4.40.0050.03911.95
5.4.30.0050.04011.94
5.4.20.0060.03711.95
5.4.10.0050.03711.95
5.4.00.0090.03311.43

preferences:
39.58 ms | 401 KiB | 5 Q