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 ==> { $a = $n($f); return $f($a($x)); }; $decrement = $n ==> $f ==> $x ==> { $a = $n($g ==> $h ==> $h($g($f))); $b = $a($y ==> $x); return $b($y ==> $y); }; $add = $m ==> $n ==> { $a = $n($increment); return $a($m); }; $subtract = $m ==> $n ==> { $a = $n($decrement); return $a($m); }; $multiply = $m ==> $n ==> { $a = $n($add($m)); return $a($zero); }; $power = $m ==> $n ==> { $a = $n($multiply($m)); return $a($one); }; $pair = $x ==> $y ==> $f ==> { $a = $f($x); return $a($y); }; $car = $p ==> $p($x ==> $y ==> $x); $cdr = $p ==> $p($x ==> $y ==> $y); $a = $multiply($five); $a = $a($two); $b = $increment($a); $c = $increment($b); $d = $increment($c); $e = $increment($d); $f = $increment($e); $g = $increment($f); $h = $increment($g); $i = $increment($h); $j = $increment($i); $k = $increment($j); $l = $increment($k); $m = $increment($l); $n = $increment($m); $o = $increment($n); $p = $increment($o); $q = $increment($p); $r = $increment($q); $s = $increment($r); $t = $increment($s); $u = $increment($t); $v = $increment($u); $w = $increment($v); $x = $increment($w); $y = $increment($x); $z = $increment($y); $A = $increment($z); $B = $increment($A); $C = $increment($B); $D = $increment($C); $E = $increment($D); $F = $increment($E); $G = $increment($F); $H = $increment($G); $I = $increment($H); $J = $increment($I); $K = $increment($J); $L = $increment($K); $M = $increment($L); $N = $increment($M); $O = $increment($N); $P = $increment($O); $Q = $increment($P); $R = $increment($Q); $S = $increment($R); $T = $increment($S); $U = $increment($T); $V = $increment($U); $W = $increment($V); $X = $increment($W); $Y = $increment($X); $Z = $increment($Y); $dot = $increment($Z); $comma = $increment($dot); $exclamationMark = $increment($comma); $questionMark = $increment($exclamationMark); $colon = $increment($questionMark);*/ $toNum = function ($f) { $a = $f(function ($x) { return $x + 1; }); return $a(0); }; $toBool = function ($f) use ($if) { $a = $if($f); $b = $a(true); return $b(false); }; $toTextBool = function ($f) use ($toBool) { return $toBool($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)
8.3.70.0100.00716.63
8.3.60.0100.00316.50
8.3.50.0100.00722.85
8.3.40.0110.00718.66
8.3.30.0070.01118.92
8.3.20.0040.00420.33
8.3.10.0040.00421.54
8.3.00.0080.00017.46
8.2.180.0030.01216.32
8.2.170.0140.00422.96
8.2.160.0100.00720.35
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00020.87
8.2.110.0000.01022.23
8.2.100.0150.00017.78
8.2.90.0040.00419.13
8.2.80.0000.00817.97
8.2.70.0080.00017.38
8.2.60.0060.00317.79
8.2.50.0040.00418.07
8.2.40.0070.00018.09
8.2.30.0040.00417.99
8.2.20.0040.00417.61
8.2.10.0000.00717.93
8.2.00.0000.00717.43
8.1.280.0130.01025.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00623.79
8.1.230.0090.00318.95
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.10
8.1.190.0040.00417.00
8.1.180.0050.00319.01
8.1.170.0030.00618.59
8.1.160.0050.00321.85
8.1.150.0000.00818.80
8.1.140.0080.00017.23
8.1.130.0040.00419.55
8.1.120.0000.00817.38
8.1.110.0000.00717.31
8.1.100.0070.00017.21
8.1.90.0000.00717.22
8.1.80.0000.00717.39
8.1.70.0000.00717.28
8.1.60.0040.00417.43
8.1.50.0000.00817.35
8.1.40.0060.00317.31
8.1.30.0040.00417.43
8.1.20.0070.00017.51
8.1.10.0070.00017.48
8.1.00.0050.00517.39
8.0.300.0030.00618.77
8.0.290.0070.00016.63
8.0.280.0000.00718.37
8.0.270.0000.00817.23
8.0.260.0030.00317.07
8.0.250.0000.00716.81
8.0.240.0000.00716.80
8.0.230.0040.00416.77
8.0.220.0070.00016.63
8.0.210.0000.00716.78
8.0.200.0030.00316.86
8.0.190.0020.00516.80
8.0.180.0050.00216.75
8.0.170.0000.00916.77
8.0.160.0030.00316.78
8.0.150.0020.00516.79
8.0.140.0100.00016.74
8.0.130.0030.00313.45
8.0.120.0050.00316.71
8.0.110.0090.00016.80
8.0.100.0000.00716.57
8.0.90.0000.00716.80
8.0.80.0090.00616.65
8.0.70.0050.00216.71
8.0.60.0000.00816.55
8.0.50.0000.00816.59
8.0.30.0120.01017.03
8.0.20.0100.01217.40
8.0.10.0000.00816.73
8.0.00.0110.01016.62
7.4.330.0050.00015.03
7.4.320.0000.00616.36
7.4.300.0000.00916.45
7.4.290.0030.00316.47
7.4.280.0050.00216.36
7.4.270.0000.00816.44
7.4.260.0000.00816.45
7.4.250.0000.00816.34
7.4.240.0040.00316.48
7.4.230.0050.00316.58
7.4.220.0080.00816.27
7.4.210.0100.01016.35
7.4.200.0000.00716.46
7.4.160.0210.00916.31
7.4.150.0150.00617.40
7.4.140.0110.00617.86
7.4.130.0150.00416.49
7.4.120.0100.00716.40
7.4.110.0120.00616.40
7.4.100.0100.00716.35
7.4.90.0100.00716.28
7.4.80.0170.00019.39
7.4.70.0170.00016.43
7.4.60.0060.01116.32
7.4.50.0030.00616.45
7.4.40.0040.01216.49
7.4.30.0090.00616.37
7.3.330.0020.00213.10
7.3.320.0000.00513.13
7.3.310.0030.00316.19
7.3.300.0030.00315.98
7.3.290.0090.00616.22
7.3.280.0080.01116.15
7.3.270.0300.02417.40
7.3.260.0090.00916.05
7.3.240.0100.00616.18
7.3.230.0060.01216.39
7.3.210.0100.00716.30
7.3.200.0160.00719.39
7.3.190.0140.00716.43
7.3.180.0100.00616.18
7.3.170.0110.00716.27
7.3.160.0110.00516.12
7.2.330.0100.01416.52
7.2.320.0070.01316.32
7.2.310.0060.01016.11
7.2.300.0100.00716.28
7.2.290.0090.00616.50
5.4.320.0080.04412.46
5.4.310.0040.04512.46
5.4.300.0080.03912.46
5.4.290.0070.03612.45
5.4.280.0090.03112.35
5.4.270.0050.03612.35
5.4.260.0040.03912.36
5.4.250.0040.03912.35
5.4.240.0060.03612.35
5.4.230.0020.04012.34
5.4.220.0070.03412.34
5.4.210.0070.03712.35
5.4.200.0020.04112.34
5.4.190.0050.03812.34
5.4.180.0080.03812.34
5.4.170.0050.03512.35
5.4.160.0070.03412.35
5.4.150.0070.03512.34
5.4.140.0070.03412.03
5.4.130.0030.03812.02
5.4.120.0030.03711.98
5.4.110.0060.03811.97
5.4.100.0070.03411.97
5.4.90.0080.04111.96
5.4.80.0090.03311.96
5.4.70.0040.04611.96
5.4.60.0080.03211.96
5.4.50.0090.03311.96
5.4.40.0060.03511.95
5.4.30.0060.03611.95
5.4.20.0100.03211.95
5.4.10.0050.03511.95
5.4.00.0030.03911.44

preferences:
35.56 ms | 401 KiB | 5 Q